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Sodium phosphate monobasic dihydrate

Name: Sodium phosphate monobasic dihydrate
Brand: SIGALD

meets analytical specification of Ph. Eur., BP, USP, 98-100.5% (calc. to the dried substance)

Synonym(s):

Sodium dihydrogen phosphate dihydrate

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About This Item

Linear Formula:

NaH₂PO₄ · 2H₂O

CAS Number:

13472-35-0

Molecular Weight:

156.01

PubChem Substance ID:

329747903

UNSPSC Code:

12161700

NACRES:

NA.25

EC Number:

231-449-2

MDL number:

MFCD00149209

Assay:

98-100.5% (calc. to the dried substance)

Form:

powder or crystals

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Properties

Quality Segment

200

assay

98-100.5% (calc. to the dried substance)

form

powder or crystals

quality

meets analytical specification of Ph. Eur., BP, USP

impurities

heavy metals (as Pb), complies, organic volatile impurities, complies, reducing matter, complies, related substances, complies, residual solvents, complies, ≤0.2% water-insoluble matter

loss

21.5-24.0% loss on drying, 130 °C

pH

4.1-5.0 (20 °C, 1%), 4.2-4.5 (20 °C, 5%)

anion traces

chloride (Cl^-): ≤50 mg/kg, fluoride (F^-): ≤10 mg/kg, sulfate (SO₄^2-): ≤200 mg/kg

cation traces

Al:, in accordance, As: ≤1 mg/kg, Ca: ≤20 mg/kg, Ca:, in accordance, Cd: ≤1 mg/kg, Cu: ≤10 mg/kg, Fe: ≤5 mg/kg, Hg: ≤1 mg/kg, Mg: ≤20 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

O.O.[Na+].OP(O)([O-])=O

InChI

1S/Na.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+1;;;/p-1

InChI key

VBJGJHBYWREJQD-UHFFFAOYSA-M

Description

Application

Sodium phosphate monobasic dihydrate has been used for preparing phosphate buffer solution. It has also been used as a mobile phase for high-performance liquid chromatography.

Biochem/physiol Actions

Sodium phosphate monobasic also referred to as sodium dihydrogen phosphate is a chemical reagent possesses high buffering capacity and is used for preparing biological buffers. It was used as a phosphate supplement for determining whether phosphate supplementation can prevent rickets in very low birth weight infants with prenatal deficiency of phosphate.

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c