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Formaldehyde

CAS Number
50-00-0
EC Number
200-001-8
Chemical Formula
CH2O
Molecular Weight
30.026 g/mol

Description

Formaldehyde (CAS 50-00-0 ), also known commercially as Paraform in its solid polymerized form and listed as E240 in food-related contexts, is a high-demand chemical intermediate. It is a biocidal agent used across industrial manufacturing and preservation applications. It functions primarily as a crosslinking agent, disinfectant, and reactive monomer in the production of resins and polymers. In chemical manufacturing, it is the foundational building block for urea-formaldehyde and phenol-formaldehyde resins used in adhesives, laminates, and molded components for various industrial sectors. Textile and leather processors apply it as a crosslinking agent to impart wrinkle resistance, dimensional stability, and wet strength to finished goods during the manufacturing process. Water treatment operations use it as a biocide to control microbial growth in industrial cooling systems and process water. In personal care, it functions as a preservative in low-concentration formulations. Pharmaceutical producers rely on it for equipment sterilization and vaccine inactivation processes. Formaldehyde is supplied as an aqueous solution, most commonly at 37% concentration known as formalin. It is also available in solid polymerized form as paraformaldehyde powder or prills. Technical and industrial grades are standard for resin and chemical synthesis applications across the global market. Pharmaceutical and reagent grades are available for controlled manufacturing environments requiring tighter purity specifications. These grades ensure compliance with rigorous safety and quality protocols. Contact us for supply of Formaldehyde Request Quote

Other Names (Synonyms)

Paraform | Methylene oxide | Methyl aldehyde | Methanal | Formol | Formic aldehyde | Formalith | Formaline | E240

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-92 °C
Boiling Point-19.5 °C
Density0.8 g/cm³
Flash Point133 °F
AppearanceFormaldehyde is a colorless, pungent gas or aqueous solution. The Odor Threshold is 0.8 ppm. Also,formalin is an aqueous solution that is 37% formaldehyde by weight
inhibited solutions (added to prevent polymeri zation) usually contain 6 12% methyl alcohol.
ColorAPHA: ≤10
OdorPungent odor detectable at 1 ppm
FormSolution
Water Solubilitysoluble
Vapor Pressure52 mm Hg ( 37 °C)
Refractive Indexn 20/D 1.377
pHpH (25℃) : 7.0~7.5
Log P0.350

Safety & Handling

Danger
GHS05· CorrosiveGHS06· ToxicGHS08· Health HazardGHS07· IrritantGHS02· FlammableGHS04· Compressed Gas

Hazard Statements

H220Extremely flammable gas
H227Combustible liquid
H280Contains gas under pressure; may explode if heated
H301Toxic if swallowed
H302Harmful if swallowed
H311Toxic in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H330Fatal if inhaled
H331Toxic if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H341Suspected of causing genetic defects
H350May cause cancer
H351Suspected of causing cancer
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H401Toxic to aquatic life
H402Harmful to aquatic life
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P222Do not allow contact with air.
P233Keep container tightly closed.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P377Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381In case of leakage, eliminate all ignition sources.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P316Get emergency medical help immediately.
P364Take off immediately all contaminated clothing and wash it before reuse.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P403Protect from sunlight. Store in a well-ventilated place.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29121990
UN Number1198
ADR Class3
Packing GroupIII
Storage Class3 - Flammable liquids
WGK (Germany)2