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Monosodium Disodium Trisodium Sodium Phosphate Monobasic Dibasic Tribasic BP USP NF ACS FCC Food grade Manufacturers

Mono Monobasic Sodium Phosphate Monobasic Monosodium Phosphate IP BP USP NF ACS Analytical Reagent FCC Food grade Manufacturers
Di Dibasic Sodium Phosphate Dibasic Disodium Phosphate IP BP USP NF ACS Analytical Reagent FCC Food grade Manufacturers
Tri Tribasic Sodium Phosphate Tribasic Trisodium Phosphate IP BP USP NF ACS Analytical Reagent FCC Food grade Manufacturers

Mono Di Tri Sodium Phosphate Commercial grade Manufacturers
Sodium Phosphate Monobasic Dibasic Tribasic BP USP IP ACS Analytical Reagent FCC Food Grade Manufacturers

Mono Sod. Phosph. MSDS
For Di Sod. Phosph. MSDS
For TSP Phosphate MSDS

Mono Di Tri Sodium Phosphate
Technical & Pure Monosodium Phosphate, Disodium Phosphate, Trisodium Phosphate
Monobasic Sodium Phosphate Dibasic Sodium Phosphate Tribasic Sodium Phosphate Monobasic
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades

Monosodium Phosphate Disodium Phosphate Trisodium Phosphate

British Pharmacopoeia
Sodium Dihydrogen Phosphate Monohydrate

Sodium Dihydrogen Phosphate Monohydrate BP

NaH2PO4,H2Oıı 138.0ıı 10049-21-5
Action and use
Excipient.

DEFINITION
Sodium Dihydrogen Phosphate Monohydrate contains not less than 98.0% and not more than 100.5% of NaH2PO4, calculated with reference to the dried substance.

CHARACTERISTICS
Colourless crystals or a white powder.
Very soluble in water; very slightly soluble in ethanol (96%).
Dissolve 10.0 g in sufficient carbon dioxide-free water prepared from distilled water to produce 100 ml (solution S).

IDENTIFICATION
A. Solution S is faintly acid.
B. Solution S yields the reactions characteristic of phosphates.
C. Solution S neutralized with a 10% w/v solution of potassium hydroxide yields reaction A characteristic of sodium salts.
D. Complies with the test for Loss on drying.

TESTS
Acidity
pH of a mixture of 5 ml of solution S and 5 ml of carbon dioxide-free water , 4.2 to 4.5.
Clarity and colour of solution
Solution S is clear and colourless.
Arsenic
0.5 g complies with the limit test for arsenic - 2 ppm.
Heavy metals
12 ml of solution S complies with limit test A for heavy metals. Use lead standard solution (1 ppm Pb) to prepare the standard (10 ppm).
Iron
10 ml of solution S complies with the limit test for -  iron 10 ppm.
Chloride
Dilute 2.5 ml of solution S to 15 ml with water. The resulting solution complies with the limit test for chlorides - 200 ppm.
Sulphate
To 5 ml of solution S add 0.5 ml of hydrochloric acid and dilute to 15 ml with distilled water. The resulting solution complies with the limit test for sulphate - 300 ppm.
Reducing substances
To 5 ml of solution S add 0.25 ml of 0.02M potassium permanganate and 5 ml of 1M sulphuric acid and heat in a water bath for 5 minutes. The solution retains a slight red colour.
Loss on drying
When dried to constant weight at 130, loses 11.5 to 14.5% of its weight. Use 0.5 g.


Monobasic Sodium Phosphate USP NF

NaH2PO4xH2O
(anhydrous) 119.98
Phosphoric acid, monosodium salt, monohydrate.
Monosodium phosphate monohydrate 137.99 [10049-21-5]
Phosphoric acid, monosodium salt, dihydrate
Monosodium phosphate dihydrate 156.01 [13472-35-0]
Anhydrous [7558-80-7]

Monobasic Sodium Phosphate contains one or two molecules of water of hydration, or is anhydrous. It contains not less than 98.0 percent and not more than 103.0 percent of NaH2PO4, calculated on the anhydrous basis.

Identification A solution (1 in 20) responds to the tests for Sodium 191 and for Phosphate.
pH: between 4.1 and 4.5, in a solution containing the equivalent of 1.0 g of NaH2PO4H2O in 20 mL of water.
Water: less than 2.0% (anhydrous form); between 10.0% and 15.0% (monohydrate); between 18.0% and 26.5% (dihydrate).
Insoluble substances Dissolve a portion equivalent to 10.0 g of NaH2PO4H2O in 100 mL of hot water, filter through a tarred filtering crucible, wash the insoluble residue with hot water, and dry at 105 for 2 hours: the weight of the residue so obtained does not exceed 20 mg (0.2%).
Chloride A portion equivalent to 1.0 g of NaH2PO4H2O shows no more chloride than corresponds to 0.20 mL of 0.020 N hydrochloric acid (0.014%).
Sulfate
A portion equivalent to 0.20 g of NaH2PO4H2O shows no more sulfate than corresponds to 0.30 mL of 0.020 N sulfuric acid (0.15%).
Aluminum, calcium, and related elements A solution containing the equivalent of 1.0 g of NaH2PO4H2O in 10 mL of water does not become turbid when rendered slightly alkaline to litmus paper with 6 N ammonium hydroxide.
Arsenicthe limit is 8 ppm.
Heavy metalsthe limit is 0.002%.


Dibasic Sodium Phosphate USP NF

Na2HPO4xH2O (anhydrous) 141.96
Phosphoric acid, disodium salt, dodecahydrate.
Disodium hydrogen phosphate, dodecahydrate 358.14 [10039-32-4]
Phosphoric acid, disodium salt, heptahydrate.
Disodium hydrogen phosphate heptahydrate 268.07 [7782-85-6]
Phosphoric acid, disodium salt, dihydrate.
Disodium hydrogen phosphate, dihydrate 177.99 [10028-24-7]
Phosphoric acid, sodium salt, monohydrate.
Disodium hydrogen phosphate, monohydrate 159.94 [118830-14-1]
Phosphoric acid, disodium salt, hydrate.
Disodium hydrogen phosphate hydrate [10140-65-5]
Anhydrous [7558-79-4]

Dibasic Sodium Phosphate is dried or contains one, two, seven, or twelve molecules of water of hydration. It contains not less than 98.0 percent and not more than 100.5 percent of Na2HPO4, calculated on the dried basis.

Identification A solution (the equivalent of 1 part of Na2HPO4 in 30) responds to the tests for Sodium and for Phosphate.
Loss on drying Dry it at 130 to constant weight: the dried form loses not more than 5.0% of its weight, the monohydrate loses between 10.3% and 12.0% of its weight, the dehydrate loses between 18.5% and 21.5% of its weight, the heptahydrate loses between 43.0% and 50.0% of its weight, and the dodecahydrate loses between 55.0% and 64.0% of its weight.
Insoluble substances Dissolve the equivalent of 5.0 g of Na2HPO4 in 100 mL of hot water, filter through a tarred filtering crucible, wash the insoluble residue with hot water, and dry at 105 for 2 hours: the weight of the residue so obtained does not exceed 20 mg (0.4%).
Chloride A portion equivalent to 0.5 g of Na2HPO4 shows no more chloride than corresponds to 0.42 mL of 0.020 N hydrochloric acid (0.06%).
Sulfate A portion equivalent to 0.1 g of Na2HPO4 shows no more sulfate than corresponds to 0.2 mL of 0.020 N sulfuric acid (0.2%).
Arsenic the limit is 16 ppm.
Heavy metalsthe limit is 0.002%.


Sodium Phosphate Monobasic FCC

Monosodium Phosphate; Sodium Biphosphate;
Monosodium Dihydrogen Phosphate
NaH2PO4 Formula wt, anhydrous 119.98
NaH2PO4H2O Formula wt, monohydrate 137.99
INS: 339(i) CAS: anhydrous [7558-80-7]
CAS: monohydrate [10049-21-5]

DESCRIPTION
Sodium Phosphate, Monobasic, is anhydrous or contains one or two molecules of water of hydration and is slightly hygroscopic. The anhydrous form occurs as a white, crystalline powder or granules. The hydrated forms occur as white or transparent crystals or granules. All forms are freely soluble in water, but are insoluble in alcohol. The pH of a 1:100 solution is between 4.1 and 4.7.
Function: Buffer; emulsifier; nutrient.

REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for Phosphate and for Sodium.
Assay: Not less than 98.0% and not more than 103.0% of NaH2:PO4 after drying.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Insoluble Substances: Not more than 0.2%.
Lead: Not more than 4 mg/kg.
Loss on Drying Anhydrous: Not more than 2.0%; Monohydrate: Between 10.0% and 15.0%; Dihydrate: Between 20.0% and 25.0%.


Tribasic Sodium Phosphate USP NF

Na3PO4 (anhydrous) 163.94
Phosphoric acid, trisodium salt, dodecahydrate.
Trisodium phosphate, dodecahydrate 380.13 [10101-89-0]
Trisodium phosphate, monohydrate 181.96
Anhydrous [7601-54-9]

Tribasic Sodium Phosphate is anhydrous or contains one to twelve molecules of water of hydration. Na3PO4 (anhydrous) and Na3PO4H2O (monohydrate) contain not less than 97.0 percent of Na3PO4, calculated on the ignited basis; Na3PO412H2O (dodecahydrate) contains not less than 92.0 percent of Na3PO4, calculated on the ignited basis.

Identification A solution (1 in 20) meets the requirements of the tests for Sodium and for Phosphate.
Loss on ignition Dry a portion at 100 for 5 hours. Ignite about 2 g, accurately weighed, of the dried sample at about 800 for 30 minutes: calculated on the dried basis, the anhydrous form loses not more than 2.0% of its weight, the monohydrate loses between 8.0% and 11.0% of its weight, and the dodecahydrate loses between 45.0% and 57.0% of its weight.
Insoluble substances Dissolve a portion equivalent to 10.0 g of anhydrous tribasic sodium phosphate in 100 mL of hot water, and filter through a tarred filtering crucible. [NOTEDo not use glass.] Wash the insoluble residue with hot water, and dry at 105 for 2 hours: the weight of the residue so obtained does not exceed 20 mg (0.2%).
Arsenic3 g per g.
Heavy metals0.001%.


Sodium Phosphate Dibasic FCC

Disodium Monohydrogen Phosphate; Disodium Phosphate
Na2HPO4 Formula wt, anhydrous 141.96
Na2HPO42H2O Formula wt, dihydrate 177.99
INS: 339(ii) CAS: anhydrous [7558-79-4]
CAS: dihydrate [10028-24-7]

DESCRIPTION
Sodium Phosphate, Dibasic, occurs as a white, crystalline powder or as granules. It may be anhydrous or contain two molecules of water of hydration. The anhydrous form is hygroscopic. Both forms are freely soluble in water and insoluble in alcohol.
Function: Emulsifier; texturizer; buffer; nutrient.

REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for Phosphate and for Sodium.
Assay: Not less than 98.0% of Na2HPO4 after drying.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Insoluble Substances: Not more than 0.2%.
Lead: Not more than 4 mg/kg.
Loss on Drying Anhydrous: Not more than 5.0%; Dihydrate: Between 18.0% and 22.0%.


Sodium Phosphate Tribasic FCC

Trisodium Phosphate
Na3PO4 Formula wt, anhydrous 163.94
Na3PO412H2O Formula wt, dodecahydrate 380.12
INS: 339(iii) CAS: anhydrous [7601-54-9]
CAS: dodecahydrate [10101-89-0]

DESCRIPTION
Sodium Phosphate, Tribasic, occurs as white crystals or granules or as a crystalline material. It may be anhydrous or contain 1 to 12 molecules of water of hydration. The formula for a crystalline material is approximately 4(Na3PO412H2O)- NaOH. It is freely soluble in water, but is insoluble in alcohol. The pH of a 1:100 aqueous solution is between 11.5 and 12.5.
Function: Antimicrobial; buffer; emulsifier; nutrient.

REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for Sodium and for Phosphate.
Assay: Anhydrous and Monohydrate: Not less than 97.0% of Na3PO4, calculated on the ignited basis; Dodecahydrate: Not less than 90.0% of Na3PO4, calculated on the ignited basis.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Insoluble Substances: Not more than 0.2%.
Lead: Not more than 4 mg/kg.
Loss on Ignition Anhydrous: Not more than 2.0%; Monohydrate: Between 8.0% and 11.0%; Dodecahydrate: Between 45.0% and 57.0%.


Sodium Phosphate ACS

Reagent Chemicals
ACS Specificatios
Sodium Phosphate, Monobasic, Monohydrate
Sodium Dihydrogen Phosphate Monohydrate
NaH2PO4 . H2O
Formula Wt 137.99
CAS Number 10049-21-5

REQUIREMENTS
Assay: 98.0-102.0% NaH2PO4 - H2O
pH of a 5% solution: 4.1-4.5 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Chloride (Cl): 5 ppm
Nitrogen compounds (as N): 0.001%
Sulfate (SO4): 0.003%
Calcium (Ca): 0.005%
Potassium (K): 0.01%
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.001%


Reagent Chemicals
ACS Specifications

Sodium Phosphate Dibasic, Heptahydrate ACS
Disodium Hydrogen Phosphate Heptahydrate ACS

Na2HPO4-7H2O
Formula Wt 268.07
CAS Number 7782-85-6

REQUIREMENTS
Assay: 98.0-102.0% Na2HPO4-7H2O
pH of a 5% solution: 8.7-9.3 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Sulfate (SO4): 0.005%
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.001%


Reagent Chemicals
ACS Specifications

Sodium Phosphate Dibasic ACS
Disodium Hydrogen Phosphate ACS
(suitable for buffer solutions)

Na2HPO4
Formula Wt 141.96
CAS Number 7558-79-4

REQUIREMENTS
Assay: 99.0% Na2HPO4 min
pH of a 5% solution: 8.7-9.3 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Loss on drying at 105C: 0.2%
Chloride (Cl): 0.002%
Nitrogen compounds (as N): 0.002%
Sulfate (SO4): 0.005%
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.002%


Reagent Chemicals
ACS Specifications

Sodium Phosphate Tribasic Dodecahydrate ACS

Na3PO4-12H2O
Formula Wt 380.12
CAS Number 10101-89-0

NOTE. This salt, 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.

REQUIREMENTS
Assay: 98.0-102.0% Na3PO4 - 12H2O

MAXIMUM ALLOWABLE
Excess alkali (as NaOH): 2.5%
Insoluble matter: 0.01%
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Sulfate (SO4): 0.01%
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.001%

Mono Monobasic Sodium Phosphate Monobasic Monosodium Phosphate BP USP NF ACS FCC Food Grade Manufacturers
Di Dibasic Sodium Phosphate Dibasic Disodium Phosphate BP USP NF ACS FCC Food Grade Manufacturers
Tri Tribasic Sodium Phosphate Tribasic Manufacturers Trisodium Phosphate BP USP NF FCC ACS Food Grade Manufacturers

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