SWASTIK CHEMICALS
Sodium Hypochlorite

Sodium Hypochlorite

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Sodium hypochlorite (NaOCl) is a compound that can be effectively used for water purification. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection. Sodium hypochlorite is a chemical compound with the formula NaClO. It is composed of a sodium cation (Na+) and a hypochlorite anion (ClO −); it may also be viewed as the sodium salt of hypochlorous acid. It is commonly known as bleach or liquid bleach, is frequently used as a disinfectant or a bleaching agent.


Uses:-

  • Sodium hypochlorite has been used for the disinfection of drinking water or water systems.
  • Sodium hypochlorite solutions have been used to treat dilute cyanide wastewater, such as electroplating wastes.
  • Sodium hypochlorite is commonly used as a biocide in industrial applications to control slime and bacteria formation in water systems used at power plants, pulp and paper mills, etc.

Technical Specifications

SI no

Characteristic

Requirement

Method of Test,
Ref to Clause No. in
Annex A

Grade 1

Grade 2

(1)

(2)

(3)

(4)

(5)

I)

Relative density (at 25OC/25OC)

1.07 to 1.18

1.20 Min

A-2

II)

Available chlorine (as Cl), percent by mass. Max

4.0 to 6.0

12.5 to 15.0

A-3

iii)

Total chlorine , percent by volume (as Cl)

4.0 to 6.0

12.5 to 15.0

A-4

iv)

Free alkali (as NaOH), g/l, Min

1 0

5

A-5

v)

Free sodium carbonate (as Na2CO3), g/l, Min

0.5

0.5

A-6

vi)

Iron (as Fe), ppm , Max

0.4

1

A-7

vii)

Sodium chlorate

Traces

Traces

A-8