Hydrated lime, Ca(OH)2 is a dry powder produced by combining quicklime with a sufficient amount of water to satisfy the quicklime's natural affinity for moisture. The process converts Calcium Oxide, CaO to Calcium Hydroxide, Ca(OH)2. Hydrated lime can be used to form a suspension or slurry and is often pumped to multiple process locations within industrial plants.
Hydrated lime is used in a variety of industrial applications including water treatment, as an anti-stripping agent in asphalt, brine manufacture for food processing, soil stabilisation and to neutralize odours in biosolids.
Hydrated Lime products are available in various formats including: bulk in pneumatic tanker, 750kg+ sacks and 20 kg paper bags on request.
High Calcium Hydrated Lime
Graymont’s High Calcium Hydrated Lime typically has a high available lime above 90% (by calculation), is very fine and has high surface area. Graymont (NZ) Limited actively manages the manufacture of its products under a Quality Management System certified to the ISO9001:2015 standard.
Specialty Food Grade Hydrated Lime
Graymont’s South American based partner, Grupo Calidra, manufactures specialty food-grade hydrated lime that is currently sold in various parts of North and South America. Nixtacal is typically used in the production of breads and tortillas, toothpaste, pharmaceutical pills and some powdered refreshments.
Nixtacal meets the requirements of Food Chemical Codex 9, Edicon, Kosher Pareve and has been developed using the principals of food safety, HACCP and GMP. The product is registered and meets the requirements of the FDA.
Nixtacal is available in 750kg+ sacks or paper bags and is imported into New Zealand upon request.
These products are outlined in more detail on the links provided.