Calcium Carbonate 500gm
$0.01
Uncoated calcium carbonate refers to a natural mineral substance that is composed of calcium carbonate without any additional coatings or surface treatments. It is a white, powdery material that is commonly used in various industrial applications, including the manufacture of paper, paints, plastics, and rubber products, as well as in construction, agriculture, and the food and pharmaceutical industries. Uncoated calcium carbonate is typically mined from natural deposits of limestone or chalk and is often ground into fine particles to achieve the desired particle size and purity for specific applications
Uses of Uncoated calcium carbonate
Paper manufacturing:
Uncoated calcium carbonate is used as a filler and coating agent in the production of paper, improving its brightness, opacity, and printability.
Paints and coatings:
It is used as a pigment extender and to improve the rheology, gloss, and durability of paints and coatings.
Plastics:
Uncoated calcium carbonate is used as a filler to enhance the mechanical properties of plastic products, such as stiffness, impact resistance, and dimensional stability.
Rubber:
It is used as a reinforcing agent in the production of rubber products, such as tires, belts, and hoses, to improve their strength and durability.
Construction:
Uncoated calcium carbonate is used as a filler in concrete and mortar to improve their strength, durability, and workability.
Agriculture:
It is used as a soil conditioner to neutralize acidic soils and provide essential nutrients to plants.
Food and pharmaceuticals:
Uncoated calcium carbonate is used as a dietary supplement, an antacid, and a bulking agent in food and pharmaceutical products.
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Properties
- Color: Red to purplish-red.
- Solubility: Soluble in water and ethanol.
- Staining Characteristics: Stains chromatin and cytoplasmic components, providing contrast for better visualization under a microscope.
Preparation
- Ingredients:
- Carmine dye: A natural red dye extracted from the cochineal insect.
- Acetic acid: A colorless liquid organic compound with a pungent smell.
- Procedure:
- Dissolve a specific amount of carmine powder in hot distilled water.
- Add glacial acetic acid to the solution.
- Filter the mixture to remove any undissolved particles.
Aluminum Nitrate 500gm
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Physical Properties:
- Appearance: Colorless, transparent crystals or white powder.
- Solubility: Soluble in water but insoluble in alcohol.
- Melting Point: Decomposes at high temperatures before melting.
Chemical Properties:
- Molecular Formula: KAl(SO₄)₂·12H₂O
- Molecular Weight: 474.39 g/mol (for the dodecahydrate form)
- Acidity: It is slightly acidic in aqueous solution.
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