无水柠檬酸粉末

等级

ACS reagent

质量水平

200

检测方案

≥99.5%

形式

crystals

expl. lim.

8 %, 65 °F

杂质

Substances carbonizable by hot sulfuric acid, passes test

灼烧残渣

≤0.02%

pKa 

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

mp

153-159 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
oxalate (C2O42-): passes test (limit about 0.003%)
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.002%

痕量阳离子

Fe: ≤3 ppm
Pb: ≤2 ppm

SMILES string

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