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Synonyms : akadama；albacar；albafil；albaglos；aeromatt；Limestone；PRECIPITATED CHALK；Oyster Shell Powder；Calcium Carbonate Light；Calcium Carbonate Heavy；Biological Calcium Carbonate
CAS NO. : 471-34-1；13397-25-6；1317-65-3
EINECS : 207-439-9
Molecular Formula ：CCaO3
Molar Mass : 100.0869
Melting Point : 825 °C
Boling Point : 800 °C
Properties： white powder, tasteless, odorless. There are two kinds of morphology: stereotyped and crystalline. The crystal type can be divided into orthorhombic crystal system and hexagonal system, which is columnar or diamond-shaped. The relative density was 2.71. 825~896.6 degrees C decomposition, melting point of 1339 degrees C, 10.7MPa melting point of 1289. Difficult to dissolve in water and alcohol. Soluble in acid, while releasing carbon dioxide, exothermic reaction. Also soluble in ammonium chloride solution. Stable in air, with slight moisture absorption. Have better hiding power.
Specification:
|
Detect items |
Type Ⅰ |
Type II |
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|
Appearance |
Spindle-shaped |
||
|
CaCO3 content （%） |
≥98 |
≥97 |
|
|
Fe content（%） |
≤0.05 |
≤0.08 |
|
|
Mn content（%） |
≤0.005 |
≤0.008 |
|
|
Hydrochloric acid insoluble substance（%） |
≤0.1 |
≤0.2 |
|
|
Whiteness (degrees) |
≥94 |
≥92 |
|
|
Sieve residues（%） |
125μm |
passed |
≤0.005 |
|
45μm |
≤0.2 |
≤0.4 |
|
|
105℃Volatiles(%) |
≤0.3 |
≤0.5 |
|
|
PH value |
9.0-10.0 |
9.0-10.5 |
|
|
Sedimentation volume(ml/g) |
≥2.8 |
≥2. |
|
Applications and Usages: it can be used as a filler in rubber, plastic, paper, putty, primer, coating and ink industries. Widely used in organic synthesis, metallurgy, glass and asbestos production. It can also be used as a neutralizing agent for industrial wastewater, an antacid agent for gastric and duodenal ulcer disease, an antidote for acidosis, a sulfur dioxide removing agent for sulfur dioxide in sulfur dioxide-containing waste gas, a dairy feed additive, and an anti-sticking agent for wool felt, etc. It can also be used as a raw material for tooth powder, toothpaste and other cosmetics.
Packing: 40kg/50kg/1000kg inner plastic outer woven bag packaging, or according to customer requirements.
PIC：Yan Zhuo
Email：km11@kmchem.com
WhatsApp/Mobile：+86 15505390359