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Acids & Solvents

Caustic Soda Flakes: Industrial Uses, Handling and Safety

Caustic soda (sodium hydroxide) flakes are a fundamental industrial chemical used for pH adjustment, cleaning, pulping and chemical synthesis — safe handling is

10 min read · 2026-10-15

By Rajesh Chauhan, Proprietor, Drashti Chemicals

Supplying industrial chemicals from Vadodara since 2015 — ETP coagulants, RO programs, and process chemicals with batch COA/MSDS.

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Expert supply · Est. 2015

Mr Rajesh Chauhan

Founder-led industrial chemical supply from Vadodara — ETP coagulant selection, RO programs, textile and pharma utility chemicals. Batch COA/MSDS on every dispatch. GSTIN 24AGLPC6288M1ZX.

Caustic Soda Flakes: Industrial Uses, Handling and Safety — written for Process operators, safety officers and procurement teams. Drashti Chemicals supplies industrial chemicals from Vadodara, Gujarat with batch COA, MSDS and GST invoicing.

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This guide covers practical points for plant operators and procurement teams evaluating chemical supply in India.

Industrial Applications of Caustic Soda Flakes

pH adjustment in ETP, boiler water treatment and process water neutralisation — most common application in Gujarat industrial belt.

Pulp and paper industry: pulping, bleaching and de-inking processes consume large volumes of caustic soda.

Textile industry: mercerisation of cotton fabric, scouring and dye bath pH control.

Soap and detergent manufacturing, alumina refining (Bayer process), biodiesel production and chemical synthesis.

Handling, Storage and Safety Precautions

Caustic soda flakes (99% NaOH) are highly corrosive — causes severe burns on skin and eye contact; use face shield, rubber gloves and apron.

Store in dry, airtight containers — caustic soda is hygroscopic and absorbs moisture from air, forming concentrated lye.

Dissolve by adding caustic to water (never water to caustic) with continuous stirring in HDPE or rubber-lined vessels.

Emergency equipment: eye wash station, safety shower and spill containment kit with neutralising agent (citric acid or vinegar).

Quality Grades and Gujarat Sourcing

Industrial/technical grade (99% NaOH min) for ETP, textile and general industrial use.

Rayon grade and pharmaceutical grade available with lower iron and heavy metal content for sensitive applications.

Major brands: Meghmani, Nirma, Grasim, GACL — verify NaOH content and iron on COA.

Source from Vadodara-based suppliers for 25 kg bags, 50 kg bags and bulk pricing with pan-India and export delivery.

Supply from Drashti Chemicals, Vadodara

Drashti Chemicals stocks related industrial chemicals from Vadsar with batch COA, MSDS and GST invoicing (24AGLPC6288M1ZX). We are a supplier/stockist — share grade and quantity for a documented bulk quote. No public list prices.

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