-
Name
SODIUM PHOSPHATE, DIBASIC, HEPTAHYDRATE
- EINECS 231-448-7
- CAS No. 7782-85-6
- Density 1.68 g/mL at 25 °C(lit.)
- Solubility Soluble in water and insoluble in ethanol.
- Melting Point 48 °C
- Formula H3O4P.7H2O.2Na
- Boiling Point 158 °C at 760 mmHg
- Molecular Weight 270.08
- Flash Point
- Transport Information
- Appearance White powder
- Safety 26-36
- Risk Codes 36/37/38
-
Molecular Structure
-
Hazard Symbols
Xi
- Synonyms Disodiumhydrogen phosphate heptahydrate;Disodium orthophosphate heptahydrate;Disodiumphosphate heptahydrate;Sodium monohydrogen phosphate heptahydrate;Sodiumphosphate (Na2HPO4) heptahydrate;
- PSA 157.84000
- LogP -0.50230
Sodium phosphate, dibasic, heptahydrate Chemical Properties
Product Name: Sodium Phosphate (CAS NO.7782-85-6)
Molecular Formula: H17Na2O11P
Molecular Weight: 270.0806g/mol
Mol File: 7782-85-6.mol
Einecs: 231-448-7
Melting Point: 48 °C
Boiling point: 158 °C at 760 mmHg
Storage Temperature:
Density: 1.68 g/mL at 25 °C(lit.)
Vapour Pressure: 1.41 mmHg at 25°C
H-Bond Donor: 10
H-Bond Acceptor: 11
Sodium phosphate, dibasic, heptahydrate Uses
Sodium Phosphate (CAS NO.7782-85-6) are used as food additives. Sodium phosphates are added to many foods as an emulsifier to prevent oil separation. Some examples are processed cheeses, processed meats, ready-made meals and tinned (canned) soups. Sodium phosphates are also commonly added to powdered soups, boullions and gravy mixtures.
Sodium phosphates can also be used as a leavening agent. Some examples of these foods include the batter coating on breaded fish or chicken, and commercially baked cakes.
Adding sodium phosphates to food increases the shelf life of the food; maintaining the texture and appearance of the food.
Sodium Phosphate (trisodium phosphate) is also an ingredient of cleaning products; e.g. Sugar soap.
Buffered hypertonic phosphate solutions are still in common use as disposable enemas. A strong (1.5M) solution of monobasic and dibasic sodium phosphate with a pH of approximately 6.0-7.0 acts as an osmotic agent causing mobilization of water into the colon, resulting in prompt evacuation.
Sodium phosphate, dibasic, heptahydrate Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LD50 | oral | 12930mg/kg (12930mg/kg) | American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969. |
Sodium phosphate, dibasic, heptahydrate Specification
Sodium Phosphate ,its CAS NO. is 7782-85-6,the synonyms is Sodium phosphate, dibasic, heptahydrate ; Disodium phosphate heptahydrate ; Phosphoric acid, disodium salt, heptahydrate ; Sodium phosphate, diabasic, heptahydrate ; UNII-70WT22SF4B ; Phosphoric acid, disodium salt, heptahydrate ; Sodium monohydrogen phosphate heptahydrate (2:1:1:7) .
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