Zinc Acetate

Urea ACS

GENERAL DESCRIPTION

Typical appearance: white solid

Analytical use: buffer solutions

Change in state (approximate): melting point, 132-135 °C

Aqueous solubility: 109 g in 100 mL at 100 °C

pK2 1.0

SPECIFICATIONS
Cas No 57-13-6
Molecular Formula NH2CONH2
Molecular Weight 60.06
Assay 99.0-100.5% NH2CONH2
Melting point 132-135 0C
Maximum Allowable
Insoluble matter 0.01%
Residue after ignition 0.01%
Chloride (Cl) 5 ppm
Sulfate (SO4) 0.001%
Heavy metals (as Pb) 0.001%
Iron (Fe) 0.001%
Urea AR
Synonym CARBAMIDE
CAS No. 57-13-6
Molecular Formula NH2CONH2
Molecular Weight 60.06
Description WHITE CRYSTALLINE POWDER, ODOURLESS, SLIGHTLY HYGROSCOPIC
Specifications
SOLUBLE IN WATER SOLUBILITY SOLUBLE IN WATER
APPEARANCE of SOLUTION DISSOLVE 50 GM IN WATER TO PRODUCE 500 ML.
THE SOLUTION IS CLEAR AND COLOURLESS
WATER INSOLUBLE MATTER MAX 0.005%
SULPHATED ASH MAX. 0.01%
CHLORIDE MAX. 0.0005%
SULPHATE MAX. 0.001%
LEAD MAX. 0.0002%
IRON MAX. 0.0002%
COPPER MAX. 0.0005%
MELTING POINT 132 DEG.-133 DEG. C
BIURET MAX. 0.05%
ASSAY MIN. 99.5% AS NH2CONH2
Urea Extra Pure
Synonym CARBAMIDE
CAS No. 57-13-6
Molecular Formula NH2.CO.NH2
Molecular Weight 60.06
Description White Crystals or Crystalline Powder
Specifications
SOLUBILITY VERY SOLUBLE IN WATER, SOLUBLE IN ALCOHOL.
PRACTICALLY INSOLUBLE IN ETHER AND CHLOROFORM
APPEARANCE OF SOLUTION AQ. SOLUTION (10%) IS CLEAR AND COLORLESS
MELTING POINT 131 0C – 134 0C
CHLORIDE MAX. 0.005%
SULPHATE MAX. 0.01 %
SULPHATED ASH MAX. 0.1 %
ASSAY MIN 99.0%

Zinc Acetate Dihydrate ACS

GENERAL DESCRIPTION

Typical appearance: colorless or white solid

Analytical use: determination of albumin, tannin, urobilin, phosphate, and blood

Change in state (approximate): melting point, 327 °C

Aqueous solubility: 43 g in 100 mL at 20 °C

SPECIFICATIONS
Cas No 5970-45-6
Molecular Formula (CH3COO)2Zn.2H2O
Molecular Weight 219.53
Assay 98.0-101.0% (CH3COO)2Zn • 2H2O
pH of a 5% solution at 25.0 °C 6.0-7.0
Maximum Allowable
Insoluble matter 0.005%
Chloride (Cl) 5 ppm
Sulfate (SO4) 0.005%
Calcium(Ca) 0.005%
Magnesium (Mg) 0.005%
Potassium(K) 0.01%
Sodium (Na) 0.05%
Iron (Fe) 5 ppm
Lead(Pb) 0.002%
ZINC ACETATE AR
Synonym ZINC ETHANOATE, ZINC ETHANOATE DIHYDRATE,
ACETIC ACID ZINC SALT DIHYDRATE
CAS No. 5970-45-6
Molecular Formula (CH3.COO)2Zn.2H2O
Molecular Weight 219.5
Description WHITE CRYSTALLINE POWDER
Specifications
SOLUBILITY FREELY SOLUBLE IN WATER
APPEARANCE OF SOLUTION DISSOLVE 50 GM IN WATER TO PRODUCE 500 ML
THE SOLUTION IS CLEAR AND COLOURLESS
WATER INSOLUBLE MATTER MAX 0.005%
CHLORIDE MAX. 0.001%
POTASSIUM MAX. 0.01%
SULPHATE MAX 0.005%
COPPER MAX. 0.001%
CALCIUM MAX. 0.01%
IRON MAX. 0.0005%
LEAD MAX. 0.001%
SODIUM MAX. 0.005%
Nitrogen (N) MAX. 0.002%
ASSAY MIN. 99.5% as CH3.COO2ZN.2H2O
ZINC ACETATE LR
Cas No 5970-45-6
Molecular Formula Zn(CH3COO)2.2H2O
Molecular Weight 219.53
Description White crystalline compound.
Insoluble matter max. 0.005%
Assay min.98.0.%
pH of 5% sol 6.0-7.0
Chloride (Cl) max.0.005%
Sulphate(SO4) max.0.01%
Iron (Fe) max.0.005%
Heavy Metals (Pb) max.0.002%