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SODIUM
PHOSPHATE MONOBASIC DIHYDRATE |
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MOL.FORMULA:NaH2PO4.2H20 MOL.WT:156.0 CAS NO.13472-35-0 |
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DESCRIPTION: A WHITE POWDER OR COLOURLESS |
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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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SOLUBILITY |
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TO COMPLY |
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APPEARANCE OF SOLUTION |
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CLEAR& COLOURLESS |
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TO COMPLY |
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ARSENIC |
MAX |
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2PPM |
8PPM |
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0.00004% |
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HEAVY METALS |
MAX |
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10PPM |
0.002% |
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10PPM |
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INSOLUBLE SUBSTANCES |
MAX |
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0.2% |
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0.01% |
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LOSS ON DRYING AT 1300C |
MAX |
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21.5%-24.0% |
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ASSAY ON DRY BASIS |
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98.0-100.5% |
98.0-103.0% |
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98% (MIN) |
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CHLORIDES |
MAX |
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200PPM |
0.014% |
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0.001% |
250PPM |
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SULPHATES |
MAX |
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300PM |
0.15% |
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0.005% |
300PPM |
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IRON |
MAX |
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10PPM |
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0.001% |
20PPM |
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pH |
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4.2-4.5 |
4.1-4.5 |
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4.3-4.5 |
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REDUCING SUBSTANCES |
MAX |
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TO COMPLY |
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WATER |
MAX |
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18.0-26.5% |
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ALUMINIUM, CALCIUM AND RELATED COMPOUNDS |
MAX |
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TO COMPLY |
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DISODIUM PHOSPHATE |
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TO COMPLY |
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ORGANIC VOLATILE IMPURITIES |
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TO COMPLY |
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Ca & Mg |
MAX |
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0.005% |
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LEAD |
MAX |
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0.0002% |
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