Industrial Chemicals

Caustic Soda Sodium Hydroxide

Chemical formula: NaOH
Purity: 98% - 99%
Appearance: White flakes / pearls / solid
Grade: Industrial grade and food grade available

Caustic Soda, sodium hydroxide, NaOH, is supplied at 98-99% purity as white flakes, pearls or solid, in industrial grade and food grade. It is highly soluble in water with strong alkalinity, which makes it the default neutralising and saponifying alkali across soap and detergent production, pulp and paper, water treatment, metallurgy and textile mercerisation. Packing runs from 25 kg bags up to 1 MT jumbo bags so small formulators and bulk users buy the same specification.

Why buyers specify this grade

98-99% purity across both industrial and food grades
Strong alkalinity and reactivity for efficient neutralisation at low dosage
Stable and efficient pH adjustment capability in water systems
Flakes, pearls or solid to suit the dissolving equipment already installed
25 kg bags to 1 MT jumbo bags, or customised packing

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Specification

Chemical formula	NaOH
Purity	98% - 99%
Appearance	White flakes, pearls or solid
Packaging	25 kg bags, 1 MT jumbo bags or customised
Grade	Industrial / food grade

Technical data

Chemical formula: NaOH
Purity: 98% - 99%
Appearance: White flakes / pearls / solid
Grade: Industrial grade and food grade available
Solubility: Highly soluble in water, strongly alkaline

Quality control

Purity held in the 98-99% band across deliveries so downstream pH control does not drift
Food grade supplied against the stricter food-grade standards when specified
TDS and MSDS issued with the order, sample COA on request

Where it is used

Production of soaps, detergents, dyes and organic and inorganic chemicals
Pulping and bleaching in paper production
Neutralising acids and adjusting pH in water treatment systems
Food additive pH regulator and cleaning agent where food grade is specified
Ore processing in metallurgy, textile bleaching and mercerisation

Who buys it

Soap, detergent and dye manufacturers
Pulp and paper mills
Water and wastewater treatment operators
Food plants buying food-grade cleaning and pH chemicals
Metallurgy and textile processors

Problems it solves

Industrial-grade alkali being used on a food line without the grade documentation to support it
Dissolving equipment designed for pearls being fed flakes, or the reverse
Bag handling cost on high-volume caustic, solved by 1 MT jumbo bags
Inconsistent purity making pH control in a water system drift between deliveries

Packing and options

Flakes, pearls or solid form selected to match dissolving equipment
25 kg bags, 1 MT jumbo bags or customised packing
Industrial grade or food grade confirmed in the order documentation

How it compares

Flakes dissolve fastest and suit manual batch dosing; pearls handle and pour with less dust in automated feeders; solid form suits bulk storage. The grade decision is separate: only order food grade when the caustic touches a food process, because it is specified against the stricter food standard.

Handling and storage

Store in a dry, sealed container because caustic soda absorbs moisture and carbon dioxide from air
Always add caustic to water, never water to caustic, and allow for the heat released
Use appropriate personal protection, the material is strongly corrosive to skin and eyes
Confirm food grade in writing when the end use is a food process

FAQ

Caustic Soda Sodium Hydroxide questions buyers ask

What purity do you supply

98% to 99% NaOH, available in industrial grade and food grade.

Which physical forms are available

White flakes, pearls or solid. Choose the form that matches your dissolving or feeding equipment.

What packaging is available

25 kg bags, 1 MT jumbo bags, or customised packing on request.

Do you supply food grade

Yes. Food grade is supplied against the stricter food-grade standards when specified in the order.

What industries buy this

Soap, detergent and dye production, pulp and paper, water treatment, food processing, metallurgy and textiles.

How should it be stored

Dry and sealed. Caustic soda picks up moisture and carbon dioxide from the air, which degrades the flakes over time.

Download TDS, MSDS and sample COA