Overview
Calcium-based powder refers to finely ground materials primarily composed of calcium compounds, such as calcium carbonate (CaCO₃) or calcium oxide (CaO). These powders are widely utilized across multiple industries due to their affordability, versatility, and beneficial chemical properties. Common sources include limestone, marble, or industrial by-products. The powder is processed to achieve specific particle sizes and purity levels, making it suitable for diverse applications ranging from construction to agriculture.
Physical and Chemical Properties
Calcium-based powders typically exhibit a fine, white, or off-white appearance with low solubility in water. Their density ranges between 2.7-3.0 g/cm³, depending on the specific compound. For instance, calcium carbonate decomposes at 825°C, releasing carbon dioxide. Key properties include high alkalinity, reactivity with acids, and stability under normal conditions. Particle size distribution and purity are critical quality indicators, affecting performance in end-use applications.
Main Applications
In construction, calcium-based powder acts as a filler in paints, plastics, and cement, improving durability and reducing costs. In agriculture, it serves as a soil conditioner to neutralize acidic soils and provide essential calcium nutrients. The chemical industry uses it as a raw material for producing lime, glass, and other calcium derivatives. Its role as a stabilizer or pH adjuster further extends its utility in wastewater treatment and food processing.
Safety and Storage
While generally non-toxic, prolonged inhalation of calcium-based powder can cause respiratory irritation. Workers should use masks and ensure proper ventilation during handling. Skin contact may lead to dryness; gloves are recommended. Storage requires a dry, cool environment to prevent clumping or moisture absorption. Bulk quantities should be kept in sealed containers or silos to maintain quality.
B2B Procurement Guide
When purchasing calcium-based powder, prioritize suppliers with certifications (e.g., ISO) to ensure consistent quality. Key specifications to verify include purity (≥95% for most applications), particle size (measured in microns), and impurity levels (e.g., heavy metals). Request samples for lab testing before large orders. Pricing varies by volume, purity, and regional availability. Long-term contracts may offer cost advantages for bulk buyers.
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