physical properties of formaldehyde

Formaldehyde is soluble in water, ethanol and diethyl ether and is used in solution or in polymerized form (paraformaldehyde). Grignard reagent is used to extend carbon chain in organic chemistry. Its melting and boiling point are -15 ºC and -19.5 ºC and its density is 1.09 g mL -1. Physical properties which include gel time, viscosity, density, melting point, moisture uptake, refractive index and formaldehyde emission level were evaluated. Resistant to water, acids, bases and organic solvents. Examples are textiles, paper, foundry sand molds, wrinkle resistant fabrics, cotton blends, rayon, corduroy, etc.also used … Boiling point of the formaldehyde is 252K; Explanation for chemical properties of formaldehyde The chemical properties of formaldehyde are given below, 1. The specific physical properties of epoxy resins will vary depending on the formulation. As chain length and cross-linking increases, the tensile strength of the polymer increases. Regards, Manish. Acetaldehyde is a colorless, with pungent odor liquid. Paraformaldehyde has chemical and physical properties that are different from formaldehyde. , The gas-phase equilibrium between trioxan and formaldehyde: The standard enthalpy and entropy of the trimerisation of formaldehyde, J. Chem. FORMALDEHYDE . But there are some differences in their physical state and chemical activities. Alcoholic hydroxyl forms acetals while sulfhydro groups form sulfhydral acetal analogues with formaldehyde. Physical Properties: It produces a colorless solution. Physical Properties. Formaldehyde is a flammable, colorless gas at room temperature and has a pungent, suffocating odor (Budavari et al. Some physical properties of the low viscosity urea formaldehyde were compared with some paint binders. The addition of this material helps in reducing the permeability of the concrete mixture. Second mixing design was proposed to study the lignin, water, and catalyst effect on xerogels physical properties in detail. Physical properties of PET resins 1. Mechanical properties of MDF boards were significantly increased for bending (MOE) and elastic modulus (MOR), but a little negatively affected on internal bond (IB), physical properties were negatively increased thickness swelling (ThS) and water absorption (WA). IP: 10.88 eV OSHA: Occupational Safety and Health Standards - Toxic and Hazardous Substances - Formaldehyde. Formaldehyde is extremely polar and is soluble in water and ethanol. 1969 Aug;8(8):3214-8. doi: 10.1021/bi00836a013. 1989). On cooling, it is converted into a liquid with a boiling point of -21°C. Its high reactivity has imposed definite limitations on the temperatures at which formalde-hyde may be shipped and stored without deterioration. Heat deformation temperature under load 1.8Mpa is 130°C. The urea-formaldehyde resin is a non-transparent plastic obtained by heating formaldehyde and urea. Properties of Formaldehyde. PF is the most widely used because of its good mechanical properties as well as moisture resistance (Knop and Scheib, 1979; Lei … The Intrinsic Viscosity (IV) Intrinsic viscosity (IV) is a measure of polymer molecular weight , which in turn is a measure of ... Formaldehyde 40% 1 Formic Acid 5 - 30% 1 90% 3 Furfuryl Alcohol pure (liquid) 3 Geraniol pure (liquid) 1 Formaldehyde is a one-carbon compound and is the simplest aldehyde. Often used in aqueous solution, Formalin. Its vapors are flammable and explosive. 3.3. To clarify the relationship between crosslinking density and physical properties of phenol–formaldehyde novolac cured epxy resin and factors governing their physical properties, we studied various properties of cured resins having different crosslinking densities. Summary 3. General Characteristics of Polymers. Formalin free of methanol is also shipped but must … Formaldehyde gas is soluble in water, alcohols, and other polar solvents. Evolves formaldehyde and ammonia as it degrades. List products that contain formaldehyde. These parameters can be combined with other The purpose of this work is to investigate the effects of copper (II) sulfate on formaldehyde release and the mechanical properties of urea formaldehyde (UF) adhesive. This is usually pure formaldehyde. Because the pure gas tends to polymerize, it is commonly used and stored in solution. It is also known as methanal, methylene oxide, oxymethyline, methylaldehyde, and oxomethane. Scots pine and white poplar were modified with melamine formaldehyde (MF) and melamine-urea formaldehyde (MUF) resins to improve their physical and mechanical properties. STEL: 2 PPM as a 15-minute STEL. Descriptions for additional physical properties and general product information. Resources and Citations Often used in aqueous solution, Formalin. Formaldehyde is a simple organic compound with the formula CH 2 O. Describe formaldehyde's physical properties. Griganard reagent ( R-MgX , here R= alkyl group, X= Cl,Br,I) is prepared by the reaction of alkyl halides (halo alkanes) and magnesium in dry ether medium. properties. Resin type: Industrial UF, Laboratory UF, UF-Furfural (in 25 and 50 % … Physical Properties 2.1. Formula and structure: The formaldehyde chemical formula is CH2O. Its molar mass is 30.026 g mL-1. The formaldehyde molecule has the usual functional group of an aldehyde H-C=O bound to a hydrogen, so that the formaldehyde is the most simple aldehyde. Basically, formaldehyde is a colorless, water-soluble, flammable gas at room temperature with a sharp, irritating smell. anon161057 March 18, 2011 . Copper (II) sulfate has been used as a formaldehyde scavenger in UF resin, and its effects on the physical and chemical properties of UF adhesive have been studied. The … A , 1969, 19, 2975-2977. The variation in particle geometry of the raw materials significantly influenced the physical and mechanical properties of particleboard. 267 3. Physical properties of pure monomeric formaldehyde are presented in Table 1.1 The JANAF Interim Thermochemical Tables list thermodynamic properties data for formaldehyde for temperatures ranging from 0 to 6000°K. Sol: Miscible. A study of the effects of reaction with formaldehyde on some optical and physical properties of reticulocyte ribosomes R. A. Cox National Institute for Medical Research, Mill Hill, London N.W.7 Apart from increasing workability, sulphonated naphthalene formaldehyde also helps in increasing the strength of the concrete mixture by making it waterproof, highly compressible, and reducing water content. The pH value of PF resin was obtained at 25 °C with a digital pH meter. In the new design, resorcinol and formaldehyde mass fractions were fixed in 0.23 and 0.17, respectively, to establish a ratio between 1.54 and 2.18 in order to ensure xerogels formation and dimensional stability. Physical and Toxicological Properties of Formaldehyde Solution (37% w/v) Molar Mass 30.03 g/mole Boiling point 101°C Melting point 0°C Vapor pressure 40 mm Hg at 39°C Density 1.09 g/cm3 at 25°C pH N/A PEL (ceiling, Quebec) 2 ppm (3 mg/m3) Phenol formaldehyde resin (plastic) was the first commercial polymers used in the 20th century.. We abbreviate the Phenol formaldehyde resin as PF. = 3 + 0 = 3 ( sp 2) The carbon atom of Methanal is sp 2 hybridised ( 1s + 2p = 3 sp 2). Summary of Formaldehyde TRI Production-Related Waste Managed in 2018..... 39 Table 2-5. The most common methods for formaldehyde detection are based on spectrophotometry. Effect of urea formaldehyde viscosity on some physical properties of a composite from reactive blending of urea formaldehyde with natural rubber Osemeahon, S. A*, Barminas, J. T and Aliyu, B. FORMALDEHYDE, SOLUTION, reacts violently with strong oxidizing agents (hydrogen peroxide, performic acid, perchloric acid in the presence of aniline, potassium permanganate, nitromethane). Tissue fixative and embalming agent. Their technological and environmental benefits confirm their suitability to gradually replace the traditional plywood, particleboard or fiberboard. Formaldehyde is a colorless and odorous gas. Formalin, the aqueous solution of formaldehyde (30% to 50% formaldehyde), typically contains up to 15% methanol as a stabilizer. It is of interest to doctors and scientists, as well as to many other industries, because of its unique chemical properties. Its good fire retardant properties are due to the release of nitrogen gas when burned or charred. Boiling point 214°F ... NIOSH: Occupational Health Guideline for Formaldehyde. 1. Formaldehyde is a naturally occurring organic compound with the formula CH2O. Physical and Chemical Properties of Formaldehyde..... 36 Table 2-4. Most aque-ous solutions of formaldehyde must be kept hot to prevent the precipitation of a hard parafor-maldehyde polymer. Physical properties which include gel time, viscosity, density, melting point, moisture uptake, refractive index and formaldehyde emission … Copolymerization of urea formaldehyde (UF) and urea proparaldehyde (UP) was successfully carried out. The main chemical and physical properties (of the pure substance) are as follows (1,2): molecular mass 30.03 g/mol; relative vapour density 1.03–1.07 (air = 1); melting point −92 °C; and boiling point −19.1 °C. Pure formaldehyde has tendency to polymerize. Formaldehyde. To clarify the relationship between crosslinking density and physical properties of phenol–formaldehyde novolac cured epxy resin and factors governing their physical properties, we studied various properties of cured resins having different crosslinking densities. Monomeric Formaldehyde Formaldehyde [50-00-0], CH 2O, M r 30.03, is a ... for the physical dissolution of formaldehyde in water and for the reaction of formaldehyde to give methylene glycol and its oligomers [12]. Reactivity Profile. Material Safety Data Sheet and Product Descriptions for Formaldehyde are available through your Celanese Chemicals sales representative. Physical Properties for Selected Thermoset Resins. anon126474 November 12, 2010 Can formaldehyde be used as a raw material in preparing and inhibiting compositions of HCL? Formaldehyde is the simplest aldehyde composed of hydrogen, carbon, and oxygen with the formula CH 2 O. Formaldehyde is one of a large family of chemicals called volatile organic compounds which evaporate and become gaseous at room temperature. Formaldehyde is naturally produced in small amounts in our bodies.It is used in the production of fertilizer, paper, plywood, and urea-formaldehyde resins. To prevent polymerization of formaldehyde solution, about 10- … Impregnation was conducted at 4 bar pressure for 30 or 60 min, and the samples were cured at a temperature of 150 °C for 40 min in an oven. Physical properties: Formaldehyde is a colorless, with pungent odor gas. Physical and chemical properties of formaldehyde. Formaldehyde is a colorless and odorous gas. May fade or discolor; Scratches easily; Physical and Chemical Properties. The only carbon atom present in its formula belongs to the aldehyde functional group and is sp 2 hybridised. Its power consumption is -19 degrees Celsius, which is easy to burn, and it is prone to spontaneous combustion at 430 degrees Celsius. This solubility is consistent with a high dipole moment. Odor thresholds ranging from 0.5 to 1.0 parts per million (ppm) (ATSDR 1999) and 0.06 to 0.5 ppm (Gerberich et al. OSHA PEL: TWA 0.75 PPM. Phenols are a type of organic compounds that contain a benzene ring which is bonded to a hydroxyl group. Since that time, new data have become available, and the have been incorporated in the monograph and taken Into consideration in the evaluatIon. Sol: Miscible. by "Forest Products Journal"; Business Forest products industry Analysis Oriented strand board Properties of Phenolic Resins In addition, phenol formaldehyde resin properties include good thermal insulation, low density and excellent durability. The details of interaction of formaldehyde (HCHO) with the ZnO surface are important for understanding a number of reaction mechanisms such as degradation of organic pollutes as well as methanol synthesis/combustion over an oxide catalyst. Physical Properties of Formaldehyde - the Conspiracy Getting the Best Physical Properties of Formaldehyde. Usage and applications 7. In this work, low-temperature scanning tunneling microscopy (LT-STM) has been applied to investigate the … Solution (Formaldehyde 37% w/v): clear, colorless liquid pungent odor soluble in water Table 1. The boiling point of pure formaldehyde is ≥-21 °C and ≤ -19 °C at 1013.25 hPa. The boiling point of aqueous formaldehyde solutions is 98.9 - 99.4 °C at 1013.25 hPa. It is usually pure formaldehyde. A colorless liquid with a pungent irritating odor. It is … Things You Won’t Like About Physical Properties of Formaldehyde and Things You Will. Acetaldehyde is soluble and is miscible in water, ethanol, benzene, acetone, and toluene. Formaldehyde is a reactive molecule and first in the series of aliphatic aldehydes. Pure formaldehyde has tendency to polymerize. STEL: 2 PPM as a 15-minute STEL. Table 2-3. Please check following Post for … Soc. Formaldehyde is the simplest aldehyde with chemical formula CH2O and molecular weight 30.03 g/mol - Formaldehyde chemistry Essay introduction. Physical Properties of Solutions Last modified by: IP: 10.88 eV To clarify the relationship between crosslinking density and physical properties of phenol–formaldehyde novolac cured epxy resin and factors governing their physical properties, we studied various properties of cured resins having different crosslinking densities. Contains 37-50% formaldehyde by mass and varying amounts of methanol, added to prevent precipitation of formaldehyde polymers (formaldehyde exists in solution as CH2 (OH)2 and its polymers HO (CH2O)xH where x averages about three). Basic physical properties of the PF resin. Properties of formaldehyde-treated nucleohistone. formaldehyde in humans can result in respiratory symptoms, and eye, nose, and throat irritation. The infrared analysis of the pure amino resins and their copolymer (UF + UP) showed chemical interaction between UF … Boiling point of the formaldehyde is 252K; Explanation for chemical properties of formaldehyde The chemical properties of formaldehyde are given below, 1. PHYSICAL PROPERTIES OF Formaldehyde, Characteristics such as Refractive Index, Density of Formaldehyde, Molecular Weight, Atomic Mass. Besides spectrophotometric ways other methods such as high-performance liquid chromatography, gas chromatography, colorimetry, infrared detection, fluorimetry, polarography, and gas detector tubes are also used. Formaldehyde properties as found in the NIOSH Pocket Guide to Chemical Hazards: IDLH: Ca (20ppm) Carcinogen. Properties of Phenol. It is soluble in water, ether, and alcohol. Physical Properties. Density = 1.5 Comparisons. Chemical Properties. Monomeric Formaldehyde Formaldehyde [50-00-0], CH 2O, M r 30.03, is a ... for the physical dissolution of formaldehyde in water and for the reaction of formaldehyde to give methylene glycol and its oligomers [12]. Strengthening Properties. Summary of Releases of Formaldehyde to the Environment During 2018..... 40 Table 2-6. Injecting a giant squid specimen with formalin for … It is also known as the phenolic resin, one of the first synthetic polymers that we can obtain by the reaction of phenol or substituted phenol with formaldehyde. Boiling point -6°F Molecular weight Limited human studies have reported an association between formaldehyde exposure and lung and nasopharyngeal Formaldehyde gas is soluble in water and forms a solution called formalin which boiling point is 121 ºC. Physical properties. In the presence of air and moisture at room temperature, Glyptal is made up of … The chips showed better strength properties compared to planer waste. General Description. Formaldehyde 2014 CONTENTS 1. Formaldehyde is a colorless, strong-smelling gas. se 1. List the routes of exposure for formaldehyde, and describe the health effects of short- and long-term exposure. Properties Melamine formaldehyde (also called melamine or MF) is a hard, very durable, and versatile thermosetting aminoplast1with good fire and heat resistance. Performance test for phenol formaldehyde resin2.4.1. MW: 30.0. To diminish the formaldehyde emission, replacement of the formaldehyde by furfural in urea formaldehyde (UF) resin was investigated and its effect on formaldehyde emission and physical–mechanical properties of particleboard panels produced from poplar wood was examined. Formaldehyde reacts with primary amines to form Schiff bases, with amides to form hydroxymethyl compounds. Acknowledgement 2. At room temperature, formaldehyde is a colorless, flammable gas that has a distinct, pungent smell. Physical properties which include gel time, … Formaldehyde, HCHO, is a gas, and only its aqueous solution, which has a characteristic pungent odour, is considered metaformaldehyde or trioxymethylene , (CH20)3, is a solid polymer, insoluble in water and ethanol. Brittle at normal temperature urea formaldehyde compound exhibit a very high modulus of elasticity the addition this. Digital pH meter groups form sulfhydral acetal analogues with formaldehyde some inorganic chemical.! Properties... < /a > what are the chemical and Physical properties formaldehyde... Chain length and cross-linking increases, the tensile strength of the polymer increases the Urea-formaldehyde is! Celsius and a boiling point of -21 degrees Celsius and a boiling of! Physical Information < /a > USES of urea formaldehyde is the very common chemical and Physical properties formula structure... Of urea formaldehyde is located in Table 3-2 are brittle at normal urea! And 20.2 ºC and its density is 1.09 g mL -1 from formaldehyde polymerized form ( paraformaldehyde ) the... Form sulfhydral acetal analogues with formaldehyde is 1.09 g mL -1 material Data. Guideline for formaldehyde > ( PDF ) 4 plastic obtained by heating formaldehyde and ammonia as it degrades the effects! ; Scratches easily ; Physical and chemical properties physical properties of formaldehyde formaldehyde is ≥-21 °C and ≤ -19 °C at hPa. Polymerdatabase.Com < /a > Physical properties of formaldehyde suitability to gradually replace the traditional plywood, particleboard or.! A summary of formaldehyde to the aldehyde functional group and is used to extend chain... Aliphatic aldehydes ether, and oxomethane ID=C50000 & Mask=1F '' > properties of formaldehyde and ammonia as degrades! Osha: Occupational Safety and Health Standards - Toxic and Hazardous Substances - formaldehyde Essay. Formula belongs to the Environment During 2018..... 39 Table 2-5 g mL -1 121 ºC with dioxide. A sharp, irritating smell gas that has a continuous service temperature of.! //Temecula.Helpusell.Com/Physical-Properties-Of-Formaldehyde-The-Conspiracy/ '' > formaldehyde gas and water the aldehyde functional group and is miscible water. Cross-Linking increases, the tensile strength of the concrete mixture by heating and... Id=C50000 & Mask=1F '' > polymer properties Database - polymerdatabase.com < /a > properties! A rotational viscometer ether and is sp 2 hybridised embalming agent Substances -.! > Phenol formaldehyde resin 2 hybridised the formaldehyde Institute in Washington, D.C. (. Release of nitrogen gas when burned or charred sharp, irritating smell and its density 0.784... Organic solvents the Physical properties < /a > formaldehyde < /a > is. Formalin and formaldehyde and its density are 0.784 g mL -1 Urea-formaldehyde resin is a non-transparent plastic obtained heating! Are available through your Celanese Chemicals sales representative in its formula belongs to physical properties of formaldehyde release of gas!: the formaldehyde chemical formula is CH2O density is 1.09 g mL -1 formaldehyde Physical 2.1! The first in the series of aliphatic aldehydes ammonia as it degrades 2 hybridised prepared. % 20type.html '' > Physical properties of formaldehyde must be kept hot to prevent precipitation. Are brittle at normal temperature urea formaldehyde is a non-transparent plastic obtained by heating formaldehyde and things You.... A continuous service temperature of 77°C is 252K ; Explanation for chemical properties regarding. Hydroxyl group You Won ’ t Like About Physical properties Table 2-3 Physical properties of formaldehyde the chemical properties of formaldehyde TRI Production-Related Waste in... Acetals while sulfhydro groups form sulfhydral acetal analogues with formaldehyde Chemicals sales representative living and! Prevent the precipitation of a hard parafor-maldehyde polymer it has a melting point of the chemical... Short- and long-term exposure and also it is an antiseptic reagent 202 ) 659 -0060 to. As to many other industries, because of its chemical properties Information regarding the chemical properties of formaldehyde Physical of. G/Mol - formaldehyde chemistry Essay introduction g mL -1 for formaldehyde, particleboard fiberboard. Aliphatic aldehydes methyl daimides properties compared to alcohol is -123 ºC and -19.5 ºC and its are! Prepared by mixing formaldehyde gas and water a non-transparent plastic obtained by heating formaldehyde and ammonia it! Formalin and formaldehyde < /a > USES of urea formaldehyde is 252K ; Explanation for chemical when... Tends to polymerize, it is an antiseptic reagent the routes of for. Used as a disinfectant and also it is also known as methanal, methylene oxide,,. 39 Table 2-5 b. vulgaris produced better and well glued particleboards compared to b. balcooa because its. The pH value of PF resin was obtained at 25 °C with a high dipole moment unique Physical chemical! Brutlag, C Schlehuber, J Bonner a digital pH meter provides summary! Uses of urea formaldehyde is a colorless, with pungent odor liquid suitability... Flammable gas at room temperature, formaldehyde is a non-transparent plastic obtained by heating and... Toxid=39 '' > formaldehyde < /a > properties of formaldehyde inhibiting compositions of HCL > formaldehyde /a! Evolves formaldehyde and ammonia as it degrades of its unique chemical properties General Information purposes b.... '' https: //temecula.helpusell.com/physical-properties-of-formaldehyde-the-conspiracy/ '' > How to test for formaldehyde, and oxomethane //onlinesciencehelp.weebly.com/properties-of-formaldehyde.html >. ( paraformaldehyde ) as methanal, methylene oxide, oxymethyline, methylaldehyde, and describe Health... Pdf ) 4 prevent the precipitation of a hard parafor-maldehyde polymer analogues with formaldehyde also it is converted a... In 2018..... 39 Table 2-5 Urea-formaldehyde Physical, chemical properties of formaldehyde soluble! Table 3-1 nitrogen dioxide ( explosive reaction around 180°C ) a reactive molecule and the first the... Irritating smell describe the Health effects of short- and long-term exposure material Safety Data Sheet and Product for... Institute in Washington, D.C. at ( 202 ) 659 -0060 Softschools.com < >... -123 ºC and its density are 0.784 g mL -1 Occupational Health Guideline for formaldehyde are available through your Chemicals. During 2018..... 40 Table 2-6 routes of exposure for formaldehyde properties < /a Tissue... 20Classes/Melamineformaldehyde % 20type.html '' > formaldehyde gas and water, as well as to many other,! Thermal properties it has a continuous service temperature of 77°C ( PDF ) 4 formula CH2O and weight! Prevent the precipitation of a hard parafor-maldehyde polymer ):3214-8. doi: 10.1021/bi00836a013 the increases! Stored without deterioration the boiling point is 121 ºC high physical properties of formaldehyde of elasticity '' https: //www.atsdr.cdc.gov/toxprofiles/tp111-c3.pdf '' formaldehyde! Be shipped and stored in solution or in polymerized form ( paraformaldehyde ) and also it is an antiseptic.. > what are the chemical and Physical properties contain a benzene ring is... Urea-Formaldehyde Physical, chemical properties of formaldehyde < /a > Table 2-3 reactive and. Osha: Occupational Safety and Health Standards - Toxic and Hazardous Substances - formaldehyde their technological and environmental confirm! ( PDF ) 4 to doctors and scientists, as well as to many other industries because... 180°C ) very common chemical and Physical Information 3.1 chemical IDENTITY of formaldehyde chemical and is used in solution solution... During 2018..... 39 Table 2-5 chemical formula is CH2O scientists, as well as to other... And alcohol and forms a solution called formalin which boiling point is physical properties of formaldehyde ºC November,... Is an antiseptic reagent scientists, as well as to many other industries, because its. To doctors and scientists, as well as to many other industries, because of its unique properties... Chips showed better strength properties compared to b. balcooa because of its unique chemical Method... 99.4 °C at 1013.25 hPa Meaning, structure, properties < /a > formaldehyde < >! Release of nitrogen gas when burned or charred properties Method of analysis 5: //webbook.nist.gov/cgi/cbook.cgi? &! A boiling point is -123 ºC and 20.2 ºC and 20.2 ºC its! And toluene ’ s melting and boiling point is -123 ºC and 20.2 ºC and 20.2 and... Methanal, methylene oxide, oxymethyline, methylaldehyde, and oxomethane the viscosity of PF resin was at... Temperature with a digital pH meter: //monographs.iarc.who.int/wp-content/uploads/2018/06/mono62-7.pdf '' > properties of epoxy resins vary... From formaldehyde anon126474 November 12, 2010 < a href= '' https: //www.infobloom.com/what-is-formaldehyde.htm '' Physical. Produces a colorless, flammable gas at room temperature, formaldehyde is 252K ; Explanation for properties... Methanal, methylene oxide, oxymethyline, methylaldehyde, and with nitrogen dioxide explosive. //Temecula.Helpusell.Com/Physical-Properties-Of-Formaldehyde-The-Conspiracy/ '' > Urea-formaldehyde Physical, chemical properties ):3214-8. doi: 10.1021/bi00836a013 in series. In water, ethanol, benzene, acetone, and toluene they are brittle at normal temperature urea compound! ºc and -19.5 ºC and -19.5 ºC and its density are 0.784 g -1... Schlehuber, J Bonner at room temperature, formaldehyde is soluble in water and ethanol and environmental benefits their. Following Post for … < a href= '' http: //onlinesciencehelp.weebly.com/properties-of-formaldehyde.html '' > formaldehyde formula - Softschools.com < /a Evolves. Method of analysis 5 functional group and is miscible in water, ether, describe! Formaldehyde solutions is 98.9 - 99.4 °C at 1013.25 physical properties of formaldehyde from formaldehyde... < /a > General.! > ( PDF ) 4 your Celanese Chemicals sales representative solutions of formaldehyde is a colorless, gas...