|
|
Mubychem Group, established in
1976, is the pioneer manufacturer of Zinc Chloride, Ammonium
Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate,
Sodium Thiosulphate, Pharmaceutical, Fragrance & Flavor chemicals in
|
For Translating this page in your language use this translation tool (Refresh if the tool is not seen). |
|
Email This Calcium Oxide - Quick Lime Info to a Colleague or Yourself |
||
Buy Calcium Oxide; Quick Lime; Door Delivery
Lime, Calcium Oxide
Lime or Quick Lime
CaO 56.08
Calcium oxide Lime USP
Quick Lime, when freshly ignited to constant weight, contains not less than 95.0 percent of CaO, Calcium Oxide.
Identification—
A: Moisten it with water: heat is generated, and a white powder is obtained (calcium hydroxide or slaked lime). Mix the powder with 3 or 4 times its weight of water: a smooth magma of lime forms that is alkaline to litmus.
B: Slake 1 g of Lime or Calcium Oxide with 20 mL of water, and add 6 N acetic acid until the lime is dissolved: the resulting solution responds to the test for Calcium.
Loss on ignition— Ignite a portion of Quick Lime or Calcium Oxide to constant weight in a tarred platinum crucible at 1100 ± 50 C it loses not more than 10.0% of its weight.
Insoluble substances— Slake 5.0 g of Quick Lime or Calcium Oxide, then mix with 100 mL of water, followed by hydrochloric acid, drop wise, with agitation, until solution takes place: the resulting solution after boiling and cooling is acid, and when filtered through a tarred crucible, washed with water until free of chlorides, and dried at 105 for 1 hour yields not more than 50 mg of insoluble substances (1.0%).
Carbonate— Slake 1 g, mix with 50 mL of water, and decant the greater portion of the milky liquid: the addition of an excess of 3 N hydrochloric acid to the residue does not cause more than a slight effervescence.
Magnesium and alkali salts— Dissolve 500 mg in 30 mL of water and 15 mL of 3 N hydrochloric acid. Neutralize the solution with 6 N ammonium hydroxide, heat to boiling, and add ammonium oxalate TS to precipitate the calcium completely. Heat the mixture on a steam bath for 1 hour, cool, dilute with water to 100 mL, mix, and filter. To 50 mL of the filtrate add 0.5 mL of sulfuric acid, evaporate to dryness, and ignite in a tarred platinum crucible to constant weight. The weight of the residue does not exceed 9 mg.
Assay— Ignite about 1 g of Lime in a muffle furnace to constant weight, cool, weigh accurately,
and dissolve in 20 mL of 3 N hydrochloric acid. Cool the solution, transfer to a 500-mL volumetric flask with the aid of water, dilute with water to volume, and mix. Transfer 50.0 mL to a suitable container, add 100 mL of water, 15 mL of 1 N sodium hydroxide, and 300 mg of hydroxy naphthol blue, and titrate with 0.05 M edetate disodium VS until the solution is deep blue in color. Each mL of 0.05 M edetate disodium is equivalent to 2.804 mg of CaO.
Calcium Oxide FCC
Lime
CaO Formula wt 56.08
INS: 529 CAS: [1305-78-8]
DESCRIPTION
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.
REQUIREMENTS
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%.
Quick Lime Manufacturer;
Calcium Oxide
Manufacturer:
MUBY CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI 400009, INDIA.
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610, 23723564.
FAX: 91-22-23728264.
e-mail:
info@mubychem.com
Cell Call to Anmol: +91-9821870100 or Ambrish: +91-9821570100
Copyright
and Usual
Disclaimer
is Applicable.
Last
updated: 06 May, 2010.
If you want your work to be done well, then go to a busy man.
The other one has no time.
|
Old Spice: Manufacturing since more than Three Decades: |
|||
|
Pharmaceuticals & Food Grade, IP BP USP FCC ACS A.R Gr. of Chemicals mfd. by Anmol Chemicals: |
|||
|
Other Best Seller Products: |
|||