- Classification: Calcium Oxide
- Quality: Special Class
- Purity: 95%
- Appearance: Hard, White or Gray-White Masses or Granules, or a
- Origin: China
- Grade Standard: Industrial Grade
- Applications: pH Control Agent; Nutrient; Dough Conditioner; Ye
- CAS No: 1305-78-8
- Trademark: zhonglian
CAS No.: 1305-78-8
Type: Auxiliaries and Other Medicinal Chemicals
Grade Standard: Cosmetic Grade, Feed Grade, Foo...
Lime, Calcium Oxide Lime or Quick Lime
CaO Formula wt 56.08
INS: 529 CAS: [1305-78-8]
Quick Lime or Calcium Oxide occurs as hard, white or gray-white masses or granules, or as a white to gray-white powder. One gram dissolves in about 840 mL of water at 25° And in about 1740 mL of boiling water. It is soluble in glycerin but insoluble in alcohol.
Function pH control agent; Nutrient; Dough conditioner; Yeast food.
Identification Slake Quick Lime or Calcium Oxide 1 g of sample with 20 mL of water, and add glacial acetic acid until the sample is dissolved. The resulting solution gives positive tests for Calcium.
Assay Not less than 95.0% and not more than 100.5% of CaO (Lime or Calcium Oxide ) after ignition.
Acid-Insoluble Substances Not more than 1%.
Alkalies or Magnesium Not more than 3.6%.
Arsenic Not more than 3 mg/kg.
Fluoride Not more than 0.015%.
Lead Not more than 2 mg/kg.
Loss on Ignition Not more than 10.0%.