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Caustic Soda

Sodium hydroxide (NaOH), commonly known as Caustic Soda, is a strong base and is one of the most widely used chemicals in the industry either as a raw material or as an auxiliary chemical. Caustic soda is produced by the electrolysis of brine. In the electrolytic cell, brine (sodium chloride solution) is decomposed to chlorine at the anode and to a sodium hydroxide solution and hydrogen at the cathode. About 200 TPD of caustic soda will be purchase by NALCO; the rest can be supplied as 48% lye (liquid) or as flakes (solid).

Applications of caustic soda

Water demineralisation: regeneration of ion exchangers
Rayon industry: preparation of spinning solutions
Pharmaceutical industry: various products, including sodium lactate
Cooking oils and fats: refining and purification
Production of starches and derivatives
Petroleum industry: refining and desulfurisation
Steel production: ammonia recovery in cokes production
Waste-water treatment: pH-correction, flocculant enhancers
Dairy and beverages: bottle-cleaning, cleaning production installations

Chlorine

Chlorine is one of the basic building blocks of our planet. Since chlorine is very active chemically, it is found in nature only in combination with other elements. Chlorine is produced as a co-product in the production of caustic soda by electrolysis of brine. Chlorine is supplied as gas through pipelines and as liquid in 900 Kg, 100 Kg and 50 Kg containers.

Applications of chlorine

As disinfectant in drinking water and in swimming pools
As bleaching agent in textiles and paper industry
As oxidising agent in pharmaceuticals industry
for use in construction, automotive, electronic and electrical industries.
In the production of plastics, such as PVC, Poly-Urethanes, Epoxy-resins, Teflon, Neoprene etc
In the production of chloromethanes, paints, insecticides etc

Hydrogen

Hydrogen is one of the most abundant elements on earth, mostly in the form of chemical compounds such as water and hydrocarbons. We produce hydrogen as a co-product in the production of caustic soda by electrolysis of brine. Hydrogen is supplied as gas through pipelines and as compressed gas in 5,6,7 Nm3 cylinders/cylinder banks

Applications of hydrogen

As hydrogenating agent in food processing
In Hydrogen peroxide production and hydrochloric acid production
As fuel; zero emission
Ammonia Synthesis
Methanol production.
Industrial use as rotor coolant

Hydrochloric Acid/ Hydrogen chloride

Hydrogen chloride (HCl) is a colorless gas. Its aqueous solution is known as Hydrochloric Acid. Hydrogen chloride or hydrochloric acid is produced by burning hydrogen and chlorine together. Hydrogen chloride is supplied as gas through pipelines and as acid/30% solution in bulk containers as well as 25, 50 Kg containers.

Applications of hydrochloric acid

Cleaning and pickling of metals
Ion exchange regeneration
pH regulation and neutralization of process streams
Acidizing of oil wells
Processing of textiles
Food processing
Manufacture of chloro-organic compounds and polymers such as PVC, chlorinated rubber etc.

Sodium hypochlorite

Sodium hypochlorite (NaOCl) commonly known as soda bleach is produced by adding chlorine into caustic soda solution. It is an excellent steriliser, oxidiser and decolouring agent, and also acts as a germicide, fungicide and deodorant. The chemical is used as a bleaching agent for rayon pulp, paper and fabrics and for industrial water treatment and pool chlorination. It also finds application as a food additive.

Applications of Sodium hypochlorite

Bleaching agent for rayon pulp and paper, cotton, linen and jute
Disinfectant and deodorant in dairies and creameries (sterilisation)
Water treatment (chlorination)
Household bleach
Pool chlorination
Fly control (sterilisation)
Germicide
Fungicide

CIN : U24100GJ2015PTC085247

Page last updated on: 6/12/2017

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