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| Product Name: | Disodium hydrogen phosphate dodecahydrate | Other Name: | Phosphoric acid,sodium salt,hydrate (1:2:12);Phosphoric acid,disodium salt,dodecahydrate;Disodium hydrogen phosphate dodecahydrate;Disodium hydrogen orthophosphate dodecahydrate;Disodium phosphate (Na2HPO4.12H2O);Disodium phosphate dodecahydrate;Disodium orthophosphate dodecahydrate;Phosphoric acid disodium dodecahydrate;Monohydrogen disodium phosphate dodecahydrate;Sodium phosphate (Na2HPO4) dodecahydrate;Disodium monohydrogen phosphate dodecahydrate;Disodium phosphate (Na2HPO4) dodecahydrate;Disodium phosphate dodecahydrate (Na2HPO4.12H2O);Monosodium phosphate dodecahydrate;1: PN: LV14347 PAGE: 18 claimed sequence;Sodium phosphate dibasic dodecahydrate;Dibasic sodium phosphate dodecahydrate;1374442-72-4;2061941-60-2 |
| CAS No.: | 10039-32-4 | Molecular Formula: | H3O4P.12H2O.2Na |
| InChIKeys: | InChIKey=FCBXCSMDIVQNDS-UHFFFAOYSA-N | Molecular Weight: | 358.14 |
| Exact Mass: | 358.067566 | EC Number: | 231-448-7 |
| UNII: | 22ADO53M6F | ICSC Number: | 1129 |
| UN Number: | 3082 | DSSTox ID: | DTXSID1026039 |
| Color/Form: | Colorless, translucent crystals or white powder.|White, hygroscopic powder | HScode: | 2835220000 |
| Categories: | Emulsifier |
| PSA: | 95.4 | XLogP3: | -0.82380 |
| Appearance: | White Crystals | Density: | 1,52 g/cm3 |
| Melting Point: | 35 °C | Boiling Point: | 158ºC at 760 mmHg |
| Refractive Index: | 1.429 | Water Solubility: | H2O: 218 g/L (20 ºC) |
| Storage Conditions: | Store at +15°C to +25°C. | Odor: | NONE |
| Taste: | Saline taste | Dissociation Constants: | pKa1 = 2.15; pKa2 = 6.83; pKa3 = 12.38 (phosphoric acid), all at 25 °C |
| Experimental Properties: | Hygroscopic; converted to sodium pyrophosphate at about 240 °C.|Colorless, rhombic or monoclinic, white powder; 87.4 g sol in 100 cc water at 80 °C; Index of refraction: 1.432, 1.436, 1.437; efflorescent /Disodium phosphate dodecahydrate/|Hygroscopic. On exposure to air will absorb from 2 to 7 mols of water depending on the temperature and humidity.|Crystals or granular powder. Stable in the air. Specific gravity 1.7. Soluble in 4 parts water, more soluble in boiling water; practically insoluble in alcohol. The aqueous solution is alkaline, pH=9.5. /Heptahydrate/ | Air and Water Reactions: | Soluble in water. |
| Reactive Group: | Salts, Basic | Reactivity Profile: | Strong base; corrosive towards metals e.g. aluminum and zinc. [Handling Chemicals Safely 1980 p. 947]. |
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word |
No signal word |
| Hazard statement(s) |
none |
| Precautionary statement(s) | |
| Prevention |
none |
| Response |
none |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.