Fe: ≤10 mg/kg

99.5-101.0% (calc. to the dried substance)

in accordance for appearance of solution

chloride (Cl-): ≤20 mg/kg

sulfate (SO42-): ≤500 mg/kg

Reag. Ph. Eur.

puriss. p.a.

acidic reac. impurities, complies

sulfite or thiosulfate, complies

≤0.001% heavy metals (as Pb)

≤0.3% loss on drying, 105 °C

HOC6H4COONa

H302-H319

22-36

1

有害性 (Xn)

Warning

dust mask type N95 (US), Eyeshields, Gloves

>300 °C(lit.)