Product Brief Introduction
Product name: Heavy Kaolin
CAS: 1332-58-7
MF: Al2Si2O5(OH)4·2 H2O
MW: 294.19
Product Specification
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Appearance |
White or grayish-white unctuous fine powder |
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Identification |
A: A gelatinous white ppt. is produced |
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B: The apparent volume of the sediment is not greater than 5 ml |
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C: 0.25g yields the reaction of Silicates |
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Solubility |
Soluble in water and organic solvent |
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Adsorption Powder |
The solution is not more intensely colored than a 0.03g/L solution of methylene blue R. |
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Swelling Powder |
Triturate 2g with 2ml of water. The mixture does not flow. |
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Substances Soluble in Dilute Hydrochloric Acid |
≤ 1.0% |
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Acidity or Alkalinity |
≤ 0.25ml of 0.01M sodium hydroxide is required to change the color of the indicator to pink. |
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Sulfate (SO42-) |
0.1% |
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Chloride (Cl-) |
≤ 250 ppm |
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Calcium |
≤ 250 ppm |
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Related Substances |
Organic impurities: heat 0.3g to redness in a calcinations tube. The residue is only slightly more colored than original substances. |
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Total Aerobic Microbial Count |
≤ 1000cfu/g |
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Yeasts & Molds |
≤ 100cfu/g |
