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Sodium phosphate, dibasic, anhydrous, 98.0 - 102.0%

Sodium phosphate, dibasic, anhydrous, 98.0 - 102.0%

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Key features and details

Sodium Phosphate Dibasic

SKU: 02195501-CF

Synonyms
Disodium hydrogen phosphate; Dibasic sodium phosphate; Disodium orthophosphate; Disodium phosphate; DSP; Phosphate of soda; Secondary sodium phosphate; Sodium hydrogenphosphate; sec-Sodium phosphate
CAS Number:
7558-79-4
Molecular Formula:
HNa2O4P
Molecular Weight:
141.957 g/mol
EC Number:
231-448-7
MDL Number:
MFCD00003496
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

Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.

Key Applications

Additive | laxative

Specifications
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.
Base Catalog Number 195501
CAS # 7558-79-4
Density approx 1.7 g/cu cm
EC Number 231-448-7
Format Anhydrous powder
Grade Anhydrous
Insoluble Matter ≤0.005%
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)
pKa Eyeshields, Gloves, respirator filter
Potency 8.8-9.4 (25 °C, 50 mg/mL in H2O)(Lit.)
Purity 98%
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).
Usage Statement Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.
Citations