Sodium Phosphate Monobasic USP
Sodium Phosphate Monobasic, also known as anhydrous monobasic sodium phosphate and sodium dihydrogen phosphate, is an organic compound of sodium with dihydrogen phosphate (H2PO4−) anion. One of many sodium phosphates, it is a common industrial chemical. It exists as an anhydrous salt, as well as monohydrates and dihydrates.
Sodium Phosphate monobasic is often used in foods and in water treatment. The pH of such formulations is generally adjusted by mixtures of various sodium phosphates, such as this salt. It is added in animal feed, toothpaste, and evaporated milk. It is used as a thickening agent and emulsifier. It is used to detect the presence of magnesium ions in salts.
Chemical Name: Sodium Phosphate Monobasic
Synonyms: Sodium dihydrogen phosphate
Mol. Formula: NaH2PO4
CAS No.: 7558-80-7
Molecular Weight: 119.98 g/mol
|Characters||It occurs as colourless crystals or white, crystalline powder.|
|Solubility||Freely Soluble in water, practically insoluble in alcohol.|
|pH||Between 4.1 and 4.5|
|Water||Less than 2.0%|
|Insoluble substances||Maximum 0.2%|
|Aluminum, calcium, and related elements||Specified Test|
|Arsenic||Maximum 8 ppm|
|Heavy metals||Maximum 0.002%|
|Residual solvents||Meets the requirements|
|Assay||Not less than 98.0% not more than 103.0%|
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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