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SODIUM HYDROXIDE |
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MOL.FORMULA: NaOH MOL.WT: 40.00 CAS NO.1310-73-2 |
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DESCRIPTION: WHITE, CRYSTALLINE
MASSES, SUPPLIED AS PELLETS, STICKS OR SLABS, DELIQUESCENT, READILY ABSORBING
CARBON DIOXIDE. |
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GRADES |
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SPECIFICATION |
IP |
BP |
USP |
ACS |
AR |
LR |
FCC |
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IDENTIFICATION |
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TO COMPLY |
TO COMPLY |
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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 |
TO COMPLY |
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TO COMPLY |
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CARBONATES |
MAX |
2.0% |
2.0% |
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|
1.0% |
2.0% |
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CHLORIDES |
MAX. |
125PPM |
50PPM |
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|
0.005% |
0.005% |
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SULPHATES |
MAX |
75PPM |
50PPM |
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|
0.005% |
0.005% |
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HEAVY METALS |
MAX |
20PPM |
20PPM |
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10PPM |
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IRON |
MAX |
20PPM |
10PPM |
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0.001% |
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ASSAY |
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97.0-100.5% |
97.0-100.5% |
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|
98.0% (MIN) |
96.0% (MIN) |
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ARSENIC |
MAX |
4PPM |
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0.00004% |
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POTASSIUM |
MAX |
TO COMPLY |
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0.02% |
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PHOSPHATES |
MAX |
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0.001% |
0.005% |
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SILICATE |
MAX |
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0.01% |
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ZINC |
MAX |
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0.001% |
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INSOLUBLE MATTER |
MAX |
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0.01% |
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CALCIUM & MAGNESIUM |
MAX |
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0.004% |
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ALUMINIUM |
MAX |
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0.002% |
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LEAD |
MAX |
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0.001% |
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NICKEL |
MAX |
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0.001% |
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AMMONIUM HYDROXIDE |
MAX |
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0.0005% |
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NITRATE |
MAX |
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0.0005% |
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