Citric acid monohydrate

 性质
grade puriss.
assay 99.5-100.5% (based on anhydrous substance)
form grit
quality meets analytical specification of Ph. Eur., BP, USP, E330
total impurities residual solvents, complies
  ≤0.0005% heavy metals (as Pb)
  7.5-8.8% water (Karl Fischer)
ign. residue  ≤0.05% (as SO4)
pKa  (1) 3.13, (2) 4.76, (3) 6.4
anion traces chloride (Cl-): ≤50 mg/kg
  oxalate (as oxalic acid): ≤100 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces Al: ≤0.2 mg/kg
  As: ≤1 mg/kg
  Ca: ≤200 mg/kg
  Cu: ≤10 mg/kg
  Fe: ≤10 mg/kg
  Hg: ≤1 mg/kg
  Pb: ≤1 mg/kg
  Zn: ≤10 mg/kg
suitability complies for appearance of solution
  complies for identity (IR)
  complies for reaction against H2SO4

安全性
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes Xi
Risk Statements 37/38-41
Safety Statements 26-36/37/39
WGK Germany 1
RTECS GE7810000
Flash Point(F) 345.02 °F
Flash Point(C) 173.9 °C