C1909
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C1909
Sigma-Aldrich
Citric acid monohydrate
ACS reagent, ≥99.5%
| CAS Number: | 5949-29-1 |
| Linear Formula: | HOC(COOH)(CH2COOH)2 · H2O |
| Molecular Weight: | 210.14 |
| Beilstein Registry Number: | 4018641 |
| EC Number: | 201-069-1 |
| MDL number: | MFCD00149972 |
| PubChem Substance ID: | 24892446 |
Properties
| grade | ACS reagent |
| assay | ≥99.0% |
| ≥99.5% | |
| total impurities | Substances carbonizable by hot sulfuric acid, passes test |
| ≤0.005% Insoluble matter | |
| ign. residue | ≤0.02% |
| pKa | (1) 3.13, (2) 4.76, (3) 6.4 |
| anion traces | chloride (Cl-): ≤0.001% |
| oxalate (C2O42-): to pass test (limit about 0.05%) | |
| phosphate (PO4-): ≤0.001% | |
| sulfate (SO42-): ≤0.002% | |
| cation traces | Fe: ≤3 ppm |
| Pb: ≤2 ppm |
Safety
| Personal Protective Equipment | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 37/38-41 |
| Safety Statements | 26-36/37/39 |
| WGK Germany | 1 |
| RTECS | GE7810000 |
| Flash Point(F) | 345.02 °F |
| Flash Point(C) | 173.9 °C |
References
| Merck | Merck ,2350 |
| Beilstein | Beil. 3,556 |
| reference | Corp MSDS 1 (1), 892:D / FT-IR 2 (1), 813:A / RegBook 1 (1), 569:I / Structure Index 1, 81:C:6 |
