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CALCIUM CARBONATE |
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MOL.FORMULA: CaCO3 MOL.WT: 100.09 CAS NO. 471-34-1 |
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DESCRIPTION: WHITE
POWDER, PRACTICALLY INSOLUBLE IN WATER. |
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GRADES |
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SPECIFICATION |
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IP |
BP |
USP |
ACS |
AR |
LR |
F.C.C |
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IDENTIFICATION |
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TO COMPLY |
TO COMPLY |
TO COMPLY |
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TO
COMPLY |
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ARSENIC |
MAX |
4PPM |
4PPM |
3PPM |
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0.003% |
3PPM |
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CHLORIDE |
MAX |
250PPM |
330PPM |
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0.001% |
0.001% |
0.033% |
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HEAVY METALS |
MAX |
20PPM |
20PPM |
0.002% |
0.001% |
0.001% |
0.002% |
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SULPHATE |
MAX |
0.3% |
0.25% |
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0.01% |
0.005% |
0.3% |
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ASSAY |
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98.0-100.5% |
98.5-100.5% |
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99.0%
(MIN) |
99.5%
(MIN) |
98.0%
(MIN) |
98.0-100.5% |
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LOSS ON DRYING AT 2000C |
MAX |
2.0% |
2.0% |
2.0% |
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2.0% |
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ACID INSOLUBLE SUBSTANCES |
MAX |
0.2% |
0.2% |
0.2% |
0.01% |
0.003% |
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0.2% |
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FLUORIDE |
MAX |
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0.0005% |
0.0015% |
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0.005% |
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LEAD |
MAX |
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3PPM |
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3PPM |
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ORGANIC VOLATILE IMPURITIES |
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TO COMPLY |
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MAGNESIUM & ALKALI SALTS |
MAX |
1.0% |
1.5% |
1% |
Mg 0.02% |
Mg (0.01% |
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1.0% |
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BARIUM |
MAX |
TO COMPLY |
TO COMPLY |
TO COMPLY |
0.005% |
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IRON |
MAX |
200PPM |
200PPM |
0.1% |
0.003% |
0.001% |
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SOLUBLE ALKALI |
MAX |
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TO COMPLY |
TO COMPLY |
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NITRATE |
MAX |
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0.01% |
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PHOSPHATE |
MAX |
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0.001% |
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SILICATE |
MAX |
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0.01% |
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AMMONIUM |
MAX |
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0.003% |
0.05% |
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BARIUM AND STRONTIUM |
MAX |
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0.005%(Ba) 0.1%(Sr) |
0.01% |
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POTASSIUM |
MAX |
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0.01% |
0.005% |
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SODIUM |
MAX |
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0.1% |
0.02% |
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AMMONIUM HYDROXIDE PPT |
MAX |
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0.01% |
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MERCURY |
MAX |
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0.5PPM |
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ACID NEUTRALIZING CAPACITY |
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TO COMPLY |
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OXIDISING SUBSTANCES |
MAX |
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0.005% |
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