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DNS Fine ChemicalsSODIUM PHOSPHATE DIBASIC ACS

SODIUM PHOSPHATE DIBASIC
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GENERAL DESCRIPTION
Typical appearance: colorless or white solid
Analytical use: pH buffer solutions
Aqueous solubility: soluble in 8 parts of water, more soluble in hot water

SPECIFICATIONS
Cas No 7558-79-4
Molecular Formula Na2HPO4
Molecular Weight 141.96
Assay >99.0% Na2HPO4
pH of a 5% solution at 25.0 °C 8.7-9.3
Maximum Allowable
Insoluble matter 0.01%
Loss on drying 0.2%
Chloride (Cl) 0.002%
Sulfate (SO4) 0.005%
Heavy metals (as Pb) 0.001%
Iron (Fe) 0.002%
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SODIUM PHOSPHATE DIBASIC ANHYDROUS AR
Synonym SODIUM PHOSPHATE DRIED
CAS No. 7558-79-4
Molecular Formula Na2HPO4
Molecular Weight 141.96
Description WHITE GRANULAR POWDER OR WHITE POWDER
Specifications
SOLUBILITY . FREELY SOLUBLE IN WATER
APPEARANCE OF SOLUTION DISSOLVE 25 GM IN WATER TO PRODUCE 500 ML.
THE SOLUTION IS CLEAR AND COLOURLESS. .
PH 5% aq. Sol 9.0-9.5
WATER INSOLUBLE MATTER MAX. 0.01%
NITROGEN COMPOUNDS MAX. 0.002%
COPPER MAX. 0.001%
LEAD MAX. 0.001%
CHLORIDE MAX. 0.002%
IRON MAX. 0.001%
SULPHATE MAX. 0.005%
POTASSIUM MAX. 0.01%
ASSAY MIN. 99.0% AS NA2HPO4
LOSS ON DRYING MAX 0.2%
SODIUM PHOSPHATE DIBASIC ANHYDROUS LR
Synonym SODIUM PHOSPHATE DRIED
CAS No. 7558-79-4
Molecular Formula Na2HPO4
Molecular Weight 141.96
Description WHITE GRANULAR POWDER
Specifications
SOLUBILITY FREELY SOLUBLE IN WATER
APPEARANCE OF SOLUTION AQ. SOLUTION (10%) IS CLEAR AND COLORLESS
LOSS ON DRYING MAX. 2.0 %
PH(2.5 % W/V SOLUTION) 8.8 -- 9.4
CHLORIDE MAX. 0.02 %
SULPHATE MAX. 0.05 %
IRON MAX. 0.002 %
LEAD MAX. 0.002 %
ASSAY MIN.. 98.00%
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DNS Fine ChemicalsSodium Phosphate Monobasic Monohydrate ACS

GENERAL DESCRIPTION
Typical appearance: white or colorless solid
Analytical use: buffering agent
Change in state (approximate): loses all water at 100ºC
Aqueous solubility: freely soluble



SPECIFICATIONS
Cas No 10049-21-5
Molecular Formula NaH2PO4.H2O
Molecular Weight 137.99
Assay 98.0 – 102.0% NaH2PO4 . H2O
PH of a 5% solution at 25.0ºC 4.1 – 4.5
Maximum Allowable
Insoluble matter 0.01%
Chloride (Cl) 5 ppm
Sulfate (SO4) 0.003%
Calcium (Ca) 0.005%
Potassium (K) 0.01%
Heavy metals (as Pb) 0.001%
Iron (Fe) 0.001%
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Sodium Phosphate Monobasic
Extra Pure AR
Molecular Formula NaH2PO4.H2O
Molecular Weight 137.99
Description White Free Flowing Powder
Solubility 10% aq. Solution clear colourless
PH (5% aq. Solution) 4.3 – 4.5
Assay Min 99%
Chloride (Cl) Max 0.001%
Sulphate (SO4) Max 0.005%
Iron (Fe) Max 0.0005%
Heavy Metals (Pb) Max 0.0005%
Total Nitrogen (N) Max 0.001%
Potassium (K) Max 0.005%
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Sodium Phosphate Monobasic
Pure
Molecular Formula NaH2PO4.H2O
Molecular Weight 137.99
Description White Free Flowing Powder
Solubility 10% aq. Solution clear colourless
PH (5% aq. Solution) 4.3 – 4.5
Assay Min 98%
Chloride (Cl) Max 0.005%
Sulphate (SO4) Max 0.01%
Iron (Fe) Max 0.001%
Heavy Metals (Pb) Max 0.0005%
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DNS Fine ChemicalsSodium Phosphate Tribasic Dodecahydrate ACS

Sodium Phosphate Tribasic Dodecahydrate ACS Sodium Phosphate Tribasic Dodecahydrate ACSĀ reagent, when stored under ordinary conditions, may lose some water of crystallization. Any loss in water will result in an assay of more than 100% Na3PO4.12H2O but does not affect the determination of the relative amount of free alkali present.


SPECIFICATIONS
Typical appearance Colorless or white solid
Melting point 75 deg celsius
Molecular Formula Na3PO4-12H2O
Grade Standard Analytical Grade
Physical State Powder
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DNS Fine Chemicalspotassium-acetate

Potassium Acetate ACS Composition


Insoluble matter 0.005%
Chloride (Cl) 0.003%
Phosphate (PO4) 0.001%
Sulfate (SO4) 0.002%
Heavy metals (as Pb) 5 ppm
Iron (Fe) 5 ppm
Calcium (Ca) 0.005%
Magnesium (Mg) 0.002%
Sodium (Na) 0.03%
Typical appearance White or colorless solid
Melting point 290 deg celsius
Aqueous solubility 253 g in 100 mL at 20 deg celsius
pH 6.5-9.0
Grade Standard Analytical Grade
Physical State Solid
Potassium Acetate AR
Synonym Acetic Acid Potassium Salt
CAS No. 127-08-2
Molecular Formula CH3COOK
Molecular Weight 98.14
Description A White Deliquescent Crystalline Powder
Specifications
Solubility Very Soluble In Water
Appearance Of Solution Dissolve 50 Gm In Water To Produce 500 Ml
The Solution Is Clear And Colourless
PH (5% W/V Solution) 7.0 - 9.0
Water Insoluble
Matter
MAX 0.005%
Chloride MAX 0.001%
Phosphate MAX 0.001%
Sulphate MAX 0.002%
Calcium MAX 0.002%
Sodium MAX 0.04%
Magnesium MAX 0.002%
Lead MAX 0.0005%
Iron MAX 0.0005%
Assay MIN 99.0% AS CH3COOK
Potassium Acetate LR
Synonym Acetic Acid Potassium Salt
CAS No. 127-08-2
Molecular Formula C2H3KO2
Molecular Weight 98.14
Description A Fine White Deliquescent
Crystalline
Powder
Specifications
Solubility Very Soluble In
Water

Identification Potassium = +ve, Acetate = +ve
Appearance Of Solution AQ. Solution (10%) Is Clear And Colorless
Iron MAX 0.001%
Chloride MAX 0.05%
Sulphate MAX 0.05%
HeavyMetals MAX 0.001%
Assay MIN 99.00%





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