Sl No.

Characteristic

Specification

1

Description

It is clear colorless, odourless, viscous liquid

2

Identification

Highly acidic even in high dilutions.

3

Solubility

Miscible in water and ethanol

4

Specific gravity

The specific gravity at 25 o C / 25 o C of phosphoric acid containing 85% H 3 PO 4 is 1.71

5

Purity as H 3 PO 4 , % by mass, Min.

85.0

6

Fluoride, mg/kg, Max.

10

7

Total heavy metals (as Pb),mg/kg, Max

10

8

Lead (as Pb), mg/kg, Max.

5

9

Arsenic (as As), mg/kg, Max

3


 
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