Caustic soda flakes supplier in Delhi: NaOH 98–99%
Rise Chemical India is a caustic soda flakes supplier in Kirti Nagar, Delhi, selling sodium hydroxide (NaOH) at 98–99% purity in 25 kg and 50 kg bags. The minimum order is 250 kg, so an ETP that needs a few bags for pH correction does not have to buy a truckload.
What are caustic soda flakes?
Caustic soda is sodium hydroxide, NaOH, the strong alkali produced by electrolysis of brine at chlor-alkali plants. Flakes are the solid broken into thin white pieces, and pellets are the same solid in bead form. Lye is the name for the liquid solution. The flakes dissolve completely in water and release a lot of heat as they do. They also absorb moisture and carbon dioxide from the air, so an opened bag should be resealed at once.
Why Choose Rise Chemical India?
We sell caustic soda from 250 kg, packed in 25 kg and 50 kg bags, and quote larger lots as bulk supply. That suits an ETP that doses by the bag rather than by the tanker. Rise Chemical India is ISO 9001:2015 certified, and we make ferric alum at our own factory, so a coagulant and the caustic soda can go on one purchase order. We export caustic soda too; send the destination port and quantity for a quote.
Chemical & Technical Specifications
- Chemical Formula
- NaOH
- Form
- White Flakes / Pellets
- Purity
- 98% – 99%
- Solubility
- Highly Soluble in Water
- Packaging
- 25kg / 50kg Bags & Bulk Supply
Trade names and codes
- Also known as
- Sodium hydroxide, Caustic soda flakes, Sodium hydroxide flakes 98-99%, Caustic soda pearls, NaOH, Lye (liquid form)
- CAS No.
- 1310-73-2
- HS code
- 2815.11
- UN No.
- UN1823, Class 8
- Minimum order in India
- 250 kg
- Supply
- India and export
Last updated:
Where caustic soda flakes are used
Frequently Asked Questions
In an ETP, caustic soda raises the pH of acidic effluent before coagulation or discharge. At higher pH, dissolved metals such as copper and nickel drop out as hydroxide sludge. It is usually dosed as a solution made from flakes, with the dosing pump controlled by a pH probe.
Our caustic soda flakes are 98–99% NaOH. They are white flakes, also available as pellets, packed in 25 kg and 50 kg bags.
The minimum order is 250 kg, which is five 50 kg bags or ten 25 kg bags. Larger orders are quoted as bulk supply.
Caustic soda is better when you need fast, precise pH control without adding solids; lime is cheaper per kg but adds sludge. Caustic dissolves completely, so the dosing line stays clean and the clarifier gets no extra solids from the reagent. Lime powder suits high-volume neutralisation where the extra sludge can be handled, and we supply both lime powder and quick lime.
Caustic soda flakes are HS 2815.11 and UN1823, Class 8, packing group II. The CAS number is 1310-73-2. Lye, the liquid form, is a separate entry: HS 2815.12 and UN1824.
Yes, we export caustic soda flakes. Send us the destination port, the quantity and whether you need flakes or pellets, on WhatsApp at +91 95829 99838 or through the enquiry form. The flakes ship as dangerous goods (UN1823, Class 8), and the price and terms depend on the quantity and the destination, so we quote each order.
Handle caustic soda flakes with chemical-resistant gloves, goggles, a face shield and protective clothing, because they burn skin and eyes. To make a solution, add the flakes slowly to water while stirring, never water onto flakes, since the heat can make it boil and spatter. Store the bags sealed in a dry, covered area away from acids.