Calcium Phosphate Di Basic
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CAS NO: 7757-93-9
Molecular Formula: CaHPO4
Molecular Weight: 136.06
| Description | |
| Synonyms | Calcium orthophosphate, Calcium phosphate dibasic |
| Description | Calcium hydrogen phosphate |
| Product Information | |
| CAS number | 7757-93-9 |
| EC number | 231-826-1 |
| Grade | Ph Eur,BP,USP,FCC,E 341 (ii) |
| Hill Formula | CaHO₄P |
| Chemical formula | CaHPO₄ |
| Molar Mass | 136.06 g/mol |
| HS Code | 2835 25 00 |
| Quality Level | MQ500 |
| Physicochemical Information | |
| Density | 2.89 g/cm3 (20 °C) |
| Melting Point | 370 °C (decomposition) |
| pH value | 7 (10 g/l, H₂O, 20 °C) suspension |
| Bulk density | 900 kg/m3 |
| Solubility | 0.1 g/l |
| Toxicological Information | |
| LD 50 oral | LD50 Rat 10000 mg/kg |
| LD 50 dermal | LD50 Rabbit > 7940 mg/kg |
| Safety Information according to GHS | |
| RTECS | TB8528000 |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | WGK 1 slightly hazardous to water |
| Disposal | 14 |
| Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips | |
| Storage and Shipping Information | |
| Storage | Store at +2°C to +30°C. |
| Transport Information | |
| Declaration (railroad and road) ADR, RID | Kein Gefahrgut |
| Declaration (transport by air) IATA- DGR | No Dangerous Good |
| Declaration (transport by sea) IMDG- Code | No Dangerous Good |
| Specifications | |
| Identity | passes test |
| Assay (complexometric) | 97.5 – 102.5 % |
| Assay (complexometric; calculated on dried substance) | 98.0 – 102.0 % |
| Substances insoluble in hydrochloric acid | ≤ 0.2 % |
| Carbonate (as CO₂) | passes test |
| Chloride (Cl) | ≤ 0.03 % |
| Fluoride (F) | ≤ 0.0050 % |
| Sulfate (SO₄) | ≤ 0.5 % |
| Al (Aluminium) | ≤ 0.0200 % |
| As (Arsenic) | ≤ 0.0001 % |
| Ba (Barium) | passes test |
| Cd (Cadmium)* | ≤ 0.0001 |
| Fe (Iron) | ≤ 0.0400 % |
| Hg (Mercury) | ≤ 0.0001 % |
| Ni (Nickel)* | ≤ 0.0010 |
| Pb (Lead)* | ≤ 0.0001 |
| Sr (Strontium) | ≤ 0.03 % |
| V (Vanadium)* | ≤ 0.0010 % |
| Residual solvents (ICH Q3C) | excluded by production process |
| Loss on ignition (800 °C) | 7.0 – 8.5 % |
| Loss on drying | ≤ 2.0 % |
| Particle size (< 63 µm) | about 99 % |
| 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 (*). | |
| Corresponds to Ph.Eur.,BP,USP,FCC,E341 (ii) | |
| Conforms to the purity criteria on food additives, except for use as additive in infant and young child nutrition, according to the current European Commission Regulation. | |
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