Citric acid monohydrate 99.5-100.5% (by acidimetry on anhydrous substance), EMSURE® ACS, ISO, Reag. Ph. Eur. for analysis, Supelco®

Citric acid monohydrate 99.5-100.5% (by acidimetry on anhydrous substance), EMSURE® ACS, ISO, Reag. Ph. Eur. for analysis, Supelco®

:5949-29-1

:C₆H₈O₇.H₂O

:MFCD00149972

:210.14 g/mol

:13,02350

:135…152 °C

:1.54 g/cm3 (20 °C)

:173.9 °C (closed cup)

:201-069-1

:GHS07

:Ambient

Assay (acidimetric, calc. on anhydrous substance):
99.5 - 100.5 %
Identity (IR-spectrum):
passes test
Appearance:
white to almost white or colorless crystals
Appearance of solution (200 g/l; water):
clear (≤ 3 NTU) and not more intense in color than reference solution Y₇, BY₇ or GY₇
In water insoluble matter:
≤ 50 ppm
Chloride (Cl):
≤ 5 ppm
Phosphate (PO₄):
≤ 10 ppm
Sulphate (SO₄):
≤ 20 ppm
Heavy metals (as Pb):
≤ 5 ppm
Al (Aluminium):
≤ 0.2 ppm
As (Arsenic):
≤ 1 ppm
Hg (Mercury):
≤ 1 ppm
Cu (Copper):
≤ 5 ppm
Fe (Iron):
≤ 3 ppm
Fe (Iron, acc. to Reag. Ph Eur.):
suitable to use in the limit test for iron
Pb (Lead):
≤ 0.5 ppm
Oxalates (as C₂H₂O₄):
≤ 50 ppm
Readily carbonisable substance:
passes test
Sulfated ash:
≤ 200 ppm
Water (according to Karl Fischer):
7.5 - 8.8 %