Sodium Phosphate Dibasic
Product Description
Sodium Phosphate Dibasic
Application Notes
Disodium phosphate is used in conjunction with trisodium phosphate in many steam-boiler applications. It supplies the inventory of free phosphates to retard calcium scale formation. Used as a sequestrant, emulsifier and buffer in foods, as mordant in dyeing, for weighting silk, in tanning, in manufacture of enamels, ceramics, detergents, as a fireproofing agent, in soldering and brazing instead of borax, as reagent and buffer in analytical chemistry, as a cathartic, and as a laxative.
Usage Statement
Research Use Only (RUO). Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Key Applications
Additive||laxative
| SKU | 02195501-CF |
| Alternate Names | Disodium hydrogen phosphate; Dibasic sodium phosphate; Disodium orthophosphate; Disodium phosphate; DSP; Phosphate of soda; Secondary sodium phosphate; Sodium hydrogenphosphate; sec-Sodium phosphate |
| Application Notes | Disodium phosphate is used in conjunction with trisodium phosphate in many steam-boiler applications. It supplies the inventory of free phosphates to retard calcium scale formation. Used as a sequestrant, emulsifier and buffer in foods, as mordant in dyeing, for weighting silk, in tanning, in manufacture of enamels, ceramics, detergents, as a fireproofing agent, in soldering and brazing instead of borax, as reagent and buffer in analytical chemistry, as a cathartic, and as a laxative. |
| Density | approx 1.7 g/cu cm |
| EC Number | 231-448-7 |
| Format | Anhydrous powder |
| Grade | Anhydrous |
| Heavy Metals | ≤0.001% |
| Insoluble Matter | ≤0.005% |
| Applications | Additive||laxative |
| MDL # | MFCD00003496 |
| Molecular Formula | HNa2O4P |
| Molecular Weight | 141.957 g/mol |
| Optical Rotation | ≤0.005%Iron |
| Particle Size | ≤0.002% |
| pH | Between 8,4 and 9,6 (1 % solution) |
| Physical Appearance | White Powder |
| pKa | Eyeshields, Gloves, respirator filter |
| Potency | 8.8-9.4 (25 °C, 50 mg/mL in H2O)(Lit.) |
| Product Families Description | Sodium phosphate dibasic |
| Product Overview | Sodium Phosphate Dibasic |
| Purity | 98.0 - 102.0% |
| RTECS Number | WC4500000 |
| Solubility | Freely soluble in <a class="pubchem-internal-link CID-962" href="https://pubchem.ncbi.nlm.nih.gov/compound/water">water</a>. Insoluble in <a class="pubchem-internal-link CID-702" href="https://pubchem.ncbi.nlm.nih.gov/compound/ethanol">ethanol</a> |
| Specific Activity | Soluble in water, but more soluble in hot water; insoluble in alcohol, ethanol. pH of a 1% aqueous solution 9.1 (anhydrous) and 9.5 (heptahydrate). |
| Storage and Handling | Room Temperature; desiccate. |
| Usage Statement | Research Use Only (RUO). Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. |