Citric acid monohydrate 99.5-100.5% (alkalimetric, calculated on anhydrous substance), crystals, EMPROVE® ESSENTIAL USP, JP, E330, Ph. Eur., BP, FCC suitable for use as excipient, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

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Supplier: MERCK PRODUCTION CHEMICALS

Certificates

About this item

Synonyms: 2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid, 2-Hydroxy-1,2,3-propanetricarboxilic acid

CAS Number:5949-29-1

Formula:C₆H₈O₇.H₂O

MDL Number:MFCD00149972

Density:1.552 g/cm³ (20 °C)

Molecular Weight:210.14 g/mol

Melting Pt:135…152 °C

Flash Pt:173.9 °C (closed cup)

Merck Index:13,02350

EINECS:201-069-1

:GHS07

Storage Temperature:Ambient

Specifications

Environmentally Preferable:

Specifications

Specification Test Results

Assay (alkalimetric, calculated 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
Sulfate (SO₄):
≤ 50 ppm
Heavy metals (as Pb):
≤ 5 ppm
Al (Aluminium):
≤ 0.2 ppm
As (Arsenic):
≤ 1 ppm
Hg (Mercury):
≤ 1 ppm
Pb (Lead):
≤ 0.5 ppm
Oxalates (as C₂H₂O₄):
≤ 100 ppm
Residual solvents (ICH (Q3C)):
excluded by manufacturing process
Readily carbonisable substance:
passes test
Sulfated ash (600 °C):
≤ 0.05 %
Water (according to Karl Fischer):
7.5 - 8.8 %
Bacterial endotoxins:
< 0.5