Citric acid monohydrate 99.5-100.5% (alkalimetric, calculated on anhydrous substance), crystals, EMPROVE® ESSENTIAL Ph. Eur., BP, JP, USP, E330, FCC, SAFC®
Supplier: EMD MILLIPORE – PCS CA EXCEP
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Warning
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Synonyms:
2-Hydroxypropane-1,2,3-tricarboxylic acid
, Hydroxytricarballylic acid
, 2-Hydroxy-1,2,3-propanetricarboxilic acid
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
Certifications: Corresponds to Ph. Eur., BP, JP, USP, E 330, FCC
Conforms to the purity criteria on food additives according to the current European Commission Regulation.
Formula:
C₆H₈O₇.H₂O MW: 210.14 g/mol Melting Pt: 135…152 °C Density: 1.552 g/cm³ (20 °C) Flash Pt: 173.9 °C (closed cup) |
MDL Number:
MFCD00149972 CAS Number: 5949-29-1 Merck Index: 13,02350 |
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 |
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