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POTASSIUM PHOSPHATE DIBASIC |
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MOL.FORMULA:K2HPO4 MOL.WT:174.18 CAS NO.7758-11-4 |
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DESCRIPTION:
WHITE CRYSTALLINE POWDER;HYGROSCOPIC |
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GRADES |
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SPECIFICATION |
IP |
BP |
USP |
ACS |
AR |
LR |
F.C.C |
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IDENTIFICATION |
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TO COMPLY |
TO COMPLY |
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APPEARANCE OF SOLUTION |
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TO COMPLY |
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SOLUBILITY |
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TO COMPLY |
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ARSENIC |
MAX |
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2PPM |
3PPM |
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2PPM |
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ASSAY |
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98-101% |
98-100.5% |
98.0%(MIN) |
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97.5%-101% |
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CHLORIDE |
MAX |
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200PPM |
0.03% |
0.003% |
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50PPM |
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HEAVY METALS |
MAX |
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10PPM |
0.001% |
5PPM |
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10PPM |
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IRON |
MAX |
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10PPM |
0.003% |
0.001% |
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LOSS ON DRYING AT 1050C |
MAX |
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2.0% |
1.0% |
1.0% |
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MONO POTASSIUM PHOSPHATE |
MAX |
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2.5% |
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REDUCING SUBSTANCES |
MAX |
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TO COMPLY |
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SOLUBILITY |
MAX |
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TO COMPLY |
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TO COMPLY |
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SULPHATE |
MAX |
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0.1% |
0.1% |
0.005% |
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500PPM |
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PH
5% SOLN 25OC |
MAX |
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8.5-9.6 |
8.5-9.6 |
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INSOLUBLE MATTER |
MAX |
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0.2% |
0.01% |
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CARBONATE |
MIN. |
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TO COMPLY |
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SODIUM |
MAX |
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0.1% |
TO COMPLY |
0.05% |
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1.0% |
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FLUORIDE |
MAX |
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0.001% |
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NITROGEN CMPOUNDS |
MAX |
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0.001% |
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MONOBASIC OR TRI BASIC SALT |
MAX |
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TO COMPLY |
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