Citric acid - 27109
Code: 27109
Citric acid
Meets analytical specification of BP, Ph. Eur., USP, E330, Anhydrous, 99.5-100.5% (based on anhydrous substance)
99.5-100.5%, meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)
CAS Number: 77-92-9
Linear Formula: HOC(COOH)(CH2COOH)2
Molar Mass: 192.12 g/mol
Beilstein Registry Number: 782061
EC Number: 201-069-1
MDL Number: MFCD00011669
| Property |
Value |
| Assay (calculated on the anhydrous basis) |
99.5 - 100.5 % |
| Water (Karl Fischer) |
max. 0.5 % |
| Sulfated ash |
max. 0.05 % |
| Aluminium (Al) |
max. 0.2 ppm |
| Arsenic (As) |
max. 1 ppm |
| Calcium (Ca) |
max. 0.02 % |
| Copper (Cu) |
max. 0.001 % |
| Iron (Fe) |
max. 0.001 % |
| Mercury (Hg) |
max. 1 ppm |
| Lead (Pb) |
max. 0.5 ppm |
| Zinc (Zn) |
max. 0.001 % |
| Heavy metals (as Pb) |
max. 5 ppm |
| Chloride (Cl) |
max. 0.005 % |
| Oxalate (as Oxalic acid) |
max. 100 ppm |
| Sulfate (SO4) |
max. 100 ppm |
| Reaction against H2SO4 |
complying |
| Residual solvents |
complying |
| Appearance of the solution |
complying |
| Property |
Value |
| Form |
grit |
| Ignition Residue |
≤0.05% (as SO4) |
| PKa |
(1) 3.13, (2) 4.76, (3) 6.4 |
| Explosion Limit |
8 %, 65 °F |
| Freezing point |
153 - 159 °C |
| Density |
1.67 g/cm3 |
