Phosphoric Acid USP

Test Specification…USP
Characters It occurs as a colorless, odorless liquid of syrupy consistency



(a) It gives reaction of phosphate

Solubility Miscible with water and with alcohol
Limit of Nitrate The blue color is not discharged within 1 min
Sulfate No precipitate is formed immediately.
Alkali phosphates No turbidity is produced
Phosphorous or Hypophosphorous Acid The mixture does not become brownish
Heavy metals Not more than 10 ppm
Residual solvents Meets the requirements
Assay Not less than 85.0% and not more than 88.0% by weight, of H3PO4.

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.


GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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