Page 314 - Catalogue 2015

Sodium phosphate monobasic dihydrate

Synonym: Sodium dihydrogen phosphate dihydrate

CAS [13472-35-0]; EC 231-449-2; NaH¿POÁx2H¿O; M 156.01

Cat. No. Sodium phosphate monobasic dihydrate
195005 AR

Appearance White crystalline powder Arsenic (As) max. 0.0002%
Assay (T) 99.0-102.0%w/w Chloride (Cl) max. 0.005%
pH (5% in water) 4.2-4.5 Heavy metals (as Pb) max. 0.001%
Reducing substances Passes test Iron (Fe) max. 0.0005%
Water insolubles max. 0.2% Sulfate (SO4) max. 0.02%
Loss on drying (130°C) 21.5-24.0%
max. 0.005%
Sodium sulfate anhydrous max. 0.001%
max. 0.01%
CAS [7757-82-6]; EC 231-820-9; Na¿SOÁ; M 142.04 max. 0.5%
max. 0.5%
Cat. No. Sodium sulfate anhydrous max. 0.01%
194805 AR
max. 0.045%
Appearance White crystalline powder Magnesium (Mg) max. 0.045%
Assay 99.0-101.0% Phosphate (PO4) max. 0.0045%
pH (5% in water) 5.2-9.2 Potassium (K) max. 0.009%
Calcium (Ca) max. 0.01% Loss on ignition max. 0.02%
Chloride (Cl) max. 0.001% Loss on drying (130°C) max. 0.5%
Heavy metals (as Pb) max. 0.0005% Water insolubles
Iron (Fe) max. 0.001%
Calcium (Ca)
Cat. No. Sodium sulfate anhydrous Chloride (Cl)
194803 Meets EP/BP spec. Heavy metals (as Pb)
Iron (Fe)
Appearance White crystalline powder Magnesium (Mg)
Identification A Passes EP/BP test Loss on drying (130°C)
Identification B Passes EP/BP test
Identification C Passes EP/BP test
Appearance of solution Solution S is clear &
colorless
Acidity or Alkalinity Passes EP/BP test
Assay 98.5-101.0%

Cat. No. Sodium sulfate anhydrous
194802 CP

Assay 98-102%
Loss on drying (130°C) max. 1%
pH (5% in water) 5.2-9.2
Water insolubles max. 0.01%