Citric acid monohydrate

puriss.

200

99.5-100.5% (based on anhydrous substance)

grit

meets analytical specification of Ph. Eur., BP, USP, E330

residual solvents, complies, ≤0.0005% heavy metals (as Pb), 7.5-8.8% water (Karl Fischer)

≤0.05% (as SO₄)

(1) 3.13, (2) 4.76, (3) 6.4

chloride (Cl^-): ≤50 mg/kg, oxalate (as oxalic acid): ≤100 mg/kg, sulfate (SO₄^2-): ≤100 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

complies for appearance of solution, complies for identity (IR), complies for reaction against H₂SO₄

carboxylic acid

OC(CC(O)(C(O)=O)CC(O)=O)=O.O

1S/C6H8O7.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);1H2

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