甲醛

 性质
vapor density 3.7 (vs air)
vapor pressure 4 mmHg ( 45 °C)
grade puriss. p.a.
assay ≥99.0% (GC)
autoignition temp. 374 °F
expl. lim. 1.4 %± , 20 °F
total impurities chlorine, none detected
  ≤0.001% nitrobenzene (C6H5NO2)
  ≤1% acid (as benzoic acid)
refractive index n20/D 1.545(lit.)
  n20/D 1.545
bp 178-179 °C(lit.)
mp −26 °C(lit.)
density 1.045 g/mL at 25 °C(lit.)
cation traces Ca: ≤5 mg/kg
  Cd: ≤1 mg/kg
  Co: ≤1 mg/kg
  Cr: ≤1 mg/kg
  Cu: ≤1 mg/kg
  Fe: ≤1 mg/kg
  K: ≤20 mg/kg
  Mg: ≤1 mg/kg
  Mn: ≤1 mg/kg
  Na: ≤20 mg/kg
  Ni: ≤1 mg/kg
  Pb: ≤1 mg/kg
  Zn: ≤1 mg/kg

安全性
Personal Protective Equipment Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Hazard Codes Xn
Risk Statements 22
Safety Statements 24
RIDADR UN1990 9/PG 3
WGK Germany 2
RTECS CU4375000
UEL 8.50%(V)
LEL 1.40%(V)
Flash Point(F) 147.2 °F
Flash Point(C) 64 °C