Calcium Hypochlorite & Sodium Hypochlorite

65–70% granular cal hypo and hypochlorite solutions for water treatment

Hypochlorites are the chlorine that water treatment can handle without a gas cylinder, and they come in two very different forms. Calcium hypochlorite (HS 2828.10) is a dry granular or tablet product at 65–70% available chlorine, used to disinfect drinking water, wells, swimming pools, water tanks and supply pipes, and to treat industrial wastewater; buyers specify available chlorine at packing, moisture, granule size and whether tablets are wanted. Sodium hypochlorite (within HS 2828.90) is a liquid bleach solution, commonly around 10–12.5%, that loses strength in storage: a 12.5% solution can lose about a fifth of its available chlorine in 28 days at room temperature, and faster in heat and sunlight, which is why it is made close to the user and rarely shipped far. Calcium hypochlorite is a class 5.1 oxidiser: UN 1748 for dry material above 39% available chlorine, UN 2880 for the hydrated form with 5.5–16% water, and UN 3485–3487 for corrosive variants. It reacts violently with organic contamination, releasing heat and oxygen that defeat a ship's smothering systems, and misdeclared calcium hypochlorite has been blamed for fires on container ships including Charlotte Maersk, Maersk Seoul, Hanjin Pennsylvania and APL Austria. The IMDG rules and P&I club guidance that followed limit packages to drums of up to 45 kg, bar bags, sacks, IBCs and bulk containers, cap a dry container at 14 tonnes and set temperature limits. Sodium hypochlorite solution is UN 1791, class 8 corrosive. The 2024 export declarations under HS 2828.10 total about USD 213 million: China USD 131 million and 120,000 MT, India USD 23 million and 47,000 MT, the USA USD 15 million and Japan USD 1.7 million. Those are declared export values, not offers.

The buyer is a water-treatment chemicals distributor, a pool-chemicals distributor, a humanitarian or WASH programme supplier, a food or beverage plant sanitising water, a mine or oil and gas camp, or a wastewater operator. Documents are the certificate of analysis (COA) with available chlorine at packing, the safety data sheet (SDS), the dangerous-goods declaration and container packing certificate, a certificate of origin, REACH or biocide authorisation cover where the destination requires it. CBIL is a commodity brokerage company and brokers calcium hypochlorite granules and tablets from Chinese, Indian, US and Japanese producers in 45 kg drums and smaller pails, packed and stowed to the IMDG entries, and sodium hypochlorite solutions from producers near the buyer, on FOB, CFR, CIF and DAP terms. Price is per MT and depends on available chlorine, form and pack. Send the product, available chlorine, form, pack, monthly volume and discharge port, and the enquiry is screened and worked against it.

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Excluded origins are not offered, including product re-exported, blended or re-processed through a third country. Every lot moves with a certificate of origin naming the producing plant, mine or grower country, and nothing is quoted before the seller and loading point are known.