D. R. Laboratories

Mercuric Chloride(E.P.)
Mol.Formula :HgCl2
Mol.Wt. : 271.50
Appearance : White Crystalline Powder
Solubility : 1 gm. Dissolves in 13.5 ml cold water, 2.1 ml boiling water.
pH of solution: about 4.7
Minimum Assay : 98. %
Maximum % of impurities:
Calcium : Not more than 0.005%
Magnesium : Not more than 0.005%
Potassium : Not more than 0.005%
Sodium : Not more than 0.005%

Mercuric Iodide red(E.P.)
Mol.Formula :HgCl2
Mol.Wt. : 271.50
Appearance : White Crystalline Powder
Solubility : 1 gm. Dissolves in 13.5 ml cold water, 2.1 ml boiling water.
pH of solution: about 4.7
Minimum Assay : 98. %
Maximum % of impurities:
Calcium : Not more than 0.005%
Magnesium : Not more than 0.005%
Potassium : Not more than 0.005%
Sodium : Not more than 0.005%

L.R.Grade

L.R.Grade

Mercuric acetate(E.P.)
Mol.Formula :Hg(CH3COO)2
Mol.Wt. : 318.68
Appearance : Crystalline Powder With acetic Odour
Solubility : 1 gm. Dissolves in 2.5 ml cold H2O, Soluble in Alcohol
Minimum Assay : 98.5 % by complexometry
Maximum % of impurities:
Chloride : Not more than 0.03%
Sulfate : Not more than 0.005%
Fe : Not more than 0.001%
Hg(I) as Hg : Not more than 0.5%
Residue on Ignition : Not more than 0.1%

L.R.Grade

Mercuric Sulfate(E.P.)
Mercury bisulfate
Mol.Formula :HgSO4
Mol.Wt. : 296.65
Appearance : White Crystalline Powder
Solubility : Soluble in HCl, Hot dil H2SO4, Sensitive to light, turns yellow on addition of watetr. 1 gm. Dissolves in 20 ml of 20% NaCl solution.
Minimum Assay (ex Hg) : 99 %
Maximum % of impurities:
Chloride : Not more than 0.004%
Fe : Not more than 0.01%

Mercurous Chloride(E.P.)
Calomel
Mol.Formula :Hg2Cl2
Mol.Wt. : 472.09
Appearance : White Odourless powder
Solubility : Practically insoluble in Water,Alcohol & ether.
Minimum Assay : 99.6 to 100.5%
Maximum % of impurities:
Ammonium : Not more than 0.01%
Residue on Ignition : Not more than 0.1%
Loss on drying over P2O5: 0.5 %
Impurities with an acidic or alkaline reaction : passes test.

L.R.Grade

l.R.Grade

L.R.Grade