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Supply of CaCO3 stone powder at white limestone mine in Ha Nam province

Calcium carbonate powder Supply capacity: 15,000 tons / tonne per month New Items: 100% (Production on request) Product details Specifications: - Specific gravity: 2.7g / cm3 - Brightness: 90% - Whiteness: 90% - Maximum humidity: 0.2% - Hardness: 3 Moh - Oil Permeability: 24g / 100g CaCO3 - Weight: 25kg bag, 50kg bag and jumbo bag Application Characteristics: - Superfine fillers - Used to fill, tighten up the physical properties of the higher, shaping and smooth surface. Recommended features: - GCC heavy powder with high purity -...

Công ty TNHH Khoáng Sản Xanh / 0 Comment / 13/03/2018

Important effects of calcium and magnesium in Aquaculture

Several other effects of calcium and magnesium deserve mention. In ponds, calcium functions to minimize the rise in pH that can occur when photosynthesis rates are high. After plants deplete the water of free carbon dioxide, they can use bicarbonate as a carbon source. But when using bicarbonate, plants release carbonate that hydrolyses and causes pH to increase. Calcium ions react at elevated pH to precipitate carbonate ions as calcium...

Công ty TNHH Khoáng Sản Xanh / 0 Comment / 17/04/2017

Calcium and magnesium use in aquaculture

Hatcheries, farms should monitor levels of essential nutrients Aquatic animals can get the essential nutrients calcium and magnesium from both culture water and their food. Concentrations of calcium and magnesium are seldom measured in waters for aquaculture, but total hardness is determined rather often. Hardness is the concentration of divalent cations — mostly calcium and magnesium — in water expressed in milligrams per liter (parts per million) of equivalent calcium carbonate. Hardness sometimes...

Công ty TNHH Khoáng Sản Xanh / 1 Comment / 07/04/2017