Boric Acid IP

Boric acid, also called hydrogen borate, boracic acid, orthoboric acid and acidum boricum, is a weak, monobasic Lewis acid of boron. It has the chemical formula H3BO3, and exists in the form of colorless crystals or a white powder that dissolves in water. When occurring as a mineral, it is called Sassolite.


Boric acid is used as an antiseptic and insecticide.


Chemical Name: Boric Acid
Mol. Formula: H3BO3
Mol. Weight: 61.8g/mol
CAS No.: 10043-35-3


General Specifications

Test Specification
Characters A white, crystalline powder or colorless shiny

plates unctuous to the touch or white crystals; odorless

Identification Test

Test A


Test B


a)Specified Test. Ignite the solution; the flame has a green border.

b)Specified Test. The solution is faintly acid.

Solubility Freely soluble in boiling water, in boiling ethanol (95 %) and in glycerin (85 %); soluble in water and in ethanol (95 %)
Solubility in ethanol Specified Test. The solution is not more opalescent than opalescence standard OS2 and colorless
Appearance of solution A 3.5 % w/v solution in boiling water is clear  and colorless
pH 3.8 to 4.8
Arsenic Not more than 10 ppm
Sulphates Not more than 450 ppm
Heavy metals Not more than  20ppm
Loss on drying Not more than 0.5%
Assay Not less than 99.5% and not more than 100.5% calculated on the dried basis


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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