Sodium Dihydrogen Phosphate
Sodium Dihydrogen Phosphate
Sodium Dihydrogen Phosphate
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Crystal: 22.024.0% (40, 16 hours, then 120, 4 hours).<br />
Anhydrous: Not more than 2.0% (120, 4 hours).<br />
Assay Weigh accurately about 3 g of <strong>Sodium</strong> <strong>Dihydrogen</strong> <strong>Phosphate</strong>, previously<br />
dried, dissolve in 30 ml of water, add 5 g of sodium chloride, dissolve by shaking well,<br />
keep at about 15, and titrate with 1 mol/l sodium hydroxide (indicator: 34 drops of<br />
thymol blue TS).<br />
1 ml of 1 mol/l sodium hydroxide = 119.98 mg of NaH2PO4
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