Calcium oxide food grade quicklime wholesale refers to bulk purchasing of high-purity calcium oxide (CaO) that meets food-additive standards, typically used as a processing aid, pH adjuster, or mineral source in food production. Food-grade quicklime must comply with strict purity limits for heavy metals and other contaminants, unlike industrial-grade lime.
What specifications should food-grade quicklime meet?
Food-grade calcium oxide usually requires a minimum assay of 95–98% CaO, with low levels of arsenic, lead, and fluoride. Buyers should request a certificate of analysis (COA) for each batch to confirm compliance with relevant food-chemical regulations, such as FCC or E-number standards.
How do you choose a reliable calcium supplier in China?
China is a major source of calcium salts and lime products, so working with an experienced calcium manufacturer or calcium supplier can reduce costs and ensure consistent quality. Verify their production licenses, audit reports, and export history before placing a bulk order. A trustworthy partner will provide full traceability from quarry to finished product.
What packaging and shipping options are common for bulk orders?
Wholesale quicklime is often packed in 25 kg PP/PE bags, jumbo bags, or moisture-barrier lined sacks to prevent reaction with air and humidity. For large volumes, suppliers may offer palletized or container-load shipments with desiccant protection.
How should food-grade quicklime be stored?
Store in a dry, sealed environment away from acids and moisture. Calcium oxide reacts exothermically with water, so proper storage preserves both safety and product quality.
常见问题
What makes calcium oxide food grade different from industrial grade?
Food-grade calcium oxide is manufactured and tested to meet stricter purity limits for heavy metals, arsenic, and other contaminants. Industrial-grade quicklime may contain higher levels of impurities and is not intended for food contact. Always ask for a food-grade certificate of analysis.
How much does food-grade quicklime cost when bought wholesale?
Wholesale prices vary with purity, order volume, packaging, and shipping terms. As a general rule, larger container loads reduce the per-ton cost. Request a current quotation from several suppliers to compare landed prices rather than unit prices alone.
Can I get samples before placing a bulk order?
Most reputable calcium suppliers offer small samples for quality evaluation, sometimes free and sometimes for a nominal fee plus freight. Testing a sample helps confirm assay, particle size, and reactivity before you commit to a full order.
