Formaldehyde
CAS No.: 50-00-0 Formula: CH2O Molecular Weight: 30.02600
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Formaldehyde

CAS No.: 50-00-0 Formula: CH2O Molecular Weight: 30.02600
Suppliers: All (90) China Suppliers (90) Price Available (15) Contractor (22)

Description

Formaldehyde is used in various organic synthesis and reactions. It is used in the textile industry in the area of crosslinking molecules to vary the properties of fabrics. In the food industry it is used to reinforce and improve packaging of meats and produce. It can help improve the water resistance of biodegradable collagen films.

Numbering system

UNII 1HG84L3525

Properties

Appearance & Physical State Colorless gas
Density 0.8153 g/cm3 (−20 °C)
Boiling Point -19 °C
Melting Point -92 °C
Flash Point 50 °C (122 °F) for 37 % formaldehyde (15 % methanol)(closed cup); 85 °C (185 °F) for 37 % formaldehyde (methanol free)(closed cup)
Refractive Index 7 g/L (25 ºC)
Water Solubility soluble, > 100 g/100 ml(20 °C)
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
Storage Condition 2-8ºC
Vapor Density 300ºC
Vapor Pressure >1 atm (20 °C)

Safety Info

RTECS LP8925000
Hazard Class 8
Safety Statements S26;S36/37/39;S45;S51;S53;S60
HS Code 2912110000
WGK Germany 2
Packing Group III
RIDADR UN 2209 8 / PGIII
Risk Statements R23/24/25; R34; R43; R45
Hazard Codes T; C
Caution Statement P201; P260; P280; P301 + P310 + P330; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338; P308 + P311
Symbol GHS05, GHS06, GHS08
Signal Word Danger
Hazard Declaration H301 + H311 + H331; H314; H317; H335; H341; H350; H370
1H NMR : parameter in TMSExpand

NMR Spectrum 1H NMR : parameter in TMS

Collapse

C H2 O 5 % in TMS
formaldehyde

Parameter ppm Hz
D(A) 9.602

SHAPIRO,B.L. ET AL. J.CHEM.PHYS. 39, 3154 (1963)
J(GEM):42.42HZ.

GAS (HEATING PARAFORMALDEHYDE; CONCENTRATION UNKNOWN)Expand

GC Analysis

Total 6 Documents >>
Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
Packed Porapack Q 200. 284. isothermal
Packed SE-30 150. 229. isothermal
Packed Apiezon L 160. 249. isothermal
Capillary OV-101 - 273. temperature ramp
Capillary SPB-1 - 247. custom temperature program
Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
Administration onto the skin Standard Draize test Human 150 ug/3D (Intermittent) -
Administration into the eye Standard Draize test Human 4 ppm/5M -
Administration into the eye Non-standard exposure Human 1 ppm/6M -
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