
Citric acid monohydrate 99.5-100.5% (alkalimetric, calculated on anhydrous substance), crystals, EMPROVE® EXPERT Ph. Eur., BP, JP, USP, ACS, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Certificates
About this item
CAS Number:5949-29-1
:
Formula:C₆H₈O₇.H₂O
MDL Number:MFCD00149972
:210.14 g/mol
Merck Index:13,02350
Melting Pt:135…152 °C
Density:1.552 g/cm³ (20 °C)
Flash Pt:173.9 °C (closed cup)
EINECS:201-069-1
:GHS07
Storage Temperature:Ambient
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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
- In water insoluble matter #:≤ 0.005 %
- Chlorid (Cl) #:≤ 0.001 %
- Phosphat (PO4) #:≤ 0.001 %
- Sulfate (SO₄):≤ 20 ppm
- Heavy metals (as Pb):≤ 10 ppm
- Al (Aluminium):≤ 0.2 ppm
- Fe (Iron) #:≤ 3 ppm
- Pb (Lead) #:≤ 2 ppm
- Oxalates (as C₂H₂O₄):≤ 360 ppm
- Residual solvents (ICH (Q3C)):excluded by manufacturing process
- Readily carbonisable substance:passes test
- Sulfated ash (600 °C):≤ 0.02 %
- Water (according to Karl Fischer):7.5 - 9.0 %
- Total aerobic microbial count (TAMC):≤ 100 CFU/g
- Total combined yeasts/moulds count (TYMC):≤ 10 CFU/g
- Bile-tolerant gram-negative bacteria (absent in 1 g):passes test
- Candida albicans (absent in 1 g):passes test
- Escherichia coli (absent in 1 g):passes test
- Pseudomonas aeruginosa (absent in 1 g):passes test
- Salmonella (absent in 10 g):passes test
- Staphylococcus aureus (absent in 1 g):passes test
- Bacterial endotoxins:< 10