Product Description of Formaldehyde CAS#50-00-0
Formaldehyde is the simplest aldehyde with prominent chemical reactivity and toxic properties. Under ambient temperature conditions, it is a colorless gas carrying a pungent irritant smell, and tends to polymerize to produce polyformaldehyde.
It enjoys good solubility in water, alcohols and a range of organic solvents. Environmental formaldehyde mainly originates from fuel burning, industrial operations, construction & decorative materials, together with different types of consumer commodities.
Formaldehyde Chemical Properties
| Melting point | -15°C |
| Boiling point | 97°C(37% solution),-19.5°C(pure) |
| density | 1.09 g/mL at 25 °C(lit.) |
| vapor density | 1.03 (vs air) |
| vapor pressure | 52 mm Hg ( 37 °C) |
| refractive index | n20/D 1.377 |
| Fp | 133 °F |
| storage temp. | room temp |
| solubility | water: soluble |
| form | Solution |
| pka | 13.27(at 25℃) |
| color | APHA: ≤10 |
| Odor | Pungent odor detectable at 1 ppm |
| PH | pH (25℃) : 7.0～7.5 |
| Odor Threshold | 0.5ppm |
| Water Solubility | soluble |
| λmax | λ: 260 nm Amax: 0.01 |
| λ: 280 nm Amax: 0.01 | |
| Merck | 144235 |
| BRN | 1209228 |
| Henry's Law Constant | 2.08(x 10-7 atm?m3/mol) at 25 °C (flow-type generation system, spectrophometry, Kanda et al., 2005) |
| Dielectric constant | 23.0（Ambient） |
| Exposure limits | NIOSH REL: TWA 0.016 ppm, 15-min C 0.1 ppm, IDLH 20 ppm; OSHA PEL: TWA 0.75 ppm, STEL 2 ppm. |
| InChIKey | WSFSSNUMVMOOMR-UHFFFAOYSA-N |
| LogP | 0.35 |
| CAS DataBase Reference | 50-00-0(CAS DataBase Reference) |
| IARC | 1 (Vol. Sup 7, 62, 88, 100F) 2012 |
| NIST Chemistry Reference | Formaldehyde(50-00-0) |
| EPA Substance Registry System | Formaldehyde (50-00-0) |
| Hazard Codes | T |
| Risk Statements | 23/24/25-34-40-43-39/23/24/25-68-45-68/20/21/22 |
| Safety Statements | 36/37-51-45-36/37/39-26-53 |
| RIDADR | UN 1198 3/PG 3 |
| OEB | E |
| OEL | TWA: 0.016 ppm, Ceiling: 0.1 ppm [15-minute] |
| WGK Germany | 2 |
| RTECS | LP8925000 |
| F | 10 |
| Autoignition Temperature | 424 °C for formalin containing 15% methanol |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29121100 |
| Hazardous Substances Data Toxicity | 50-00-0(Hazardous Substances Data) |
| LD50 oral (rat) 500 mg/kg | |
| LD50 skin (rabbit) 270 mg/kg | |
| LC50 inhal (rat) 203 mg/m3 (2 h) | |
| PEL (OSHA) 1 ppm (1.5 mg/m3) | |
| TLV-TWA (ACGIH) 0.3 ppm (ceiling)(0.37 mg/m3) | |
| STEL (OSHA) 2 ppm (2.5 mg/m3) | |
| IDLA | 20 ppm |
Product Application of Formaldehyde CAS#50‑00‑0
Possessing strong reducing properties alongside notable bactericidal performance, formaldehyde can act as human‑targeted disinfectant, as well as antiseptic and fumigation agent for animal‑related scenarios.
As a critical feedstock for organic chemical synthesis, formaldehyde finds broad deployment in manufacturing pharmaceuticals, synthetic fibers, synthetic resins, plastic preservatives, reducing agents and other chemical goods. It is predominantly utilized to produce phenolic resins, urea‑formaldehyde resins, melamine‑formaldehyde resins and polyoxymethylene resins.
Besides, formaldehyde participates in the preparation of MDI, pentaerythritol, hexamethylenetetramine and butanediol. Further application scenarios cover chromatographic analysis, germicidal disinfection, phenolic resin manufacturing, as well as preservation and immersion treatment for biological specimens.
