Sodium Hydroxide 10 kg

Bulk Sodium Hydroxide Built for Industrial-Scale Processing

Sodium hydroxide, commonly known as caustic soda, ranks among the most consumed industrial alkalis worldwide, and the 10 kg pack size is aimed squarely at production environments — household chemical workshops, small chemical labs, and processing lines where consumption is measured in kilograms rather than grams. This item belongs to the Acids, Salts, Alcohols, and Alkalis Wholesale section, gathering reagents used for pH adjustment across countless manufacturing processes.

The largest share of global demand for sodium hydroxide comes from heavy and light chemical industries: pulp and paper production, where the alkali is used to cook wood chips into pulp, textile processing, where it performs cotton mercerization to boost fiber strength and sheen, and petrochemicals, including biodiesel manufacturing, where caustic soda acts as a catalyst in the transesterification of vegetable oils. Household chemistry is another major segment — concentrated drain cleaners, oven degreasers, and industrial surface degreasers are all built around this reagent. In food processing, diluted solutions are applied for olive curing, cocoa bean treatment, and certain caramelization steps under strictly regulated concentrations. A separate, smaller application is soap making by the cold or hot process method, where caustic soda serves as the primary saponifying agent for fats and oils, though on an industrial scale this niche is now considerably smaller compared to the chemical and pulp sectors.

Sodium hydroxide is compatible with most inorganic salts and is frequently paired with acids for final pH correction of finished formulas — for instance, residual alkalinity left after a hydrolysis step is often neutralized with a small amount of ascorbic acid to reach a stable neutral or slightly acidic value. In brightening formulations that rely on kojic acid, caustic soda is sometimes used at the raw material pre-adjustment stage to keep the active compounds performing consistently. When producing gel structures based on sodium alginate, the alkali helps fine-tune the acidity of the base solution before the thickener is introduced, which directly affects gelling speed and quality.

Handling sodium hydroxide requires protective gloves and eye protection, since dissolving it in water generates significant heat — the reagent should always be added to water in small portions with constant stirring, never the reverse. Store the product in a tightly sealed container, in a dry area away from moisture, acids, metals, and aluminum containers, since contact with aluminum triggers a vigorous reaction releasing hydrogen gas. Under proper storage conditions, the granules or flakes retain their properties for an extended period.

Concentrated Drain Cleaning Gel

Distilled water 500 ml

Sodium hydroxide 150 g

Table salt 30 g

Thickener (carboxymethyl cellulose) 10 g