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04273

Sigma-Aldrich

Sodium phosphate dibasic dodecahydrate

meets analytical specification of Ph. Eur., BP, E339, 98.5-102.5% (T)

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Synonym(s):
sec-Sodium phosphate, Disodium hydrogen phosphate dodecahydrate, Disodium phosphate, di-Sodium hydrogen phosphate dodecahydrate
Linear Formula:
Na2HPO4 · 12H2O
CAS Number:
10039-32-4
Molecular Weight:
358.14
EC Number:
231-448-7
MDL number:
MFCD00149181
PubChem Substance ID:
329747907
NACRES:
NA.25

Agency

meets analytical specifications of BP
meets analytical specifications of Ph. Eur.

Quality Level

200

Assay

98.5-102.5% (T)

form

crystals

quality

meets analytical specification of Ph. Eur., BP, E339

impurities

reducing matter, complies
 residual solvents, complies
≤0.001% heavy metals (as Pb)
≤1.0% NaH2PO4
57-61% water (Karl Fischer)

loss

57-61% loss on drying

pH

8.4-9.6 (20 °C, 1%)

anion traces

chloride (Cl-): ≤10 mg/kg
fluoride (F-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤1 mg/kg
Cd: ≤1 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤50 mg/kg
Pb: ≤4 mg/kg
Zn: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

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

InChI

1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2

InChI key

DGLRDKLJZLEJCY-UHFFFAOYSA-L

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1 of 4

This Item
1.065797166371650
Sodium phosphate dibasic dodecahydrate meets analytical specification of Ph. Eur., BP, E339, 98.5-102.5% (T)

Sigma-Aldrich

04273

Sodium phosphate dibasic dodecahydrate

di-Sodium hydrogen phosphate dodecahydrate for analysis EMSURE® ISO,Reag. Ph Eur

Supelco

1.06579

di-Sodium hydrogen phosphate dodecahydrate

Sodium phosphate dibasic dodecahydrate tested according to Ph. Eur.

Sigma-Aldrich

71663

Sodium phosphate dibasic dodecahydrate

Sodium phosphate dibasic dodecahydrate puriss. p.a., crystallized, ≥99.0% (T)

Sigma-Aldrich

71650

Sodium phosphate dibasic dodecahydrate

assay

98.5-102.5% (T)

assay

99.0-102.0% (alkalimetric)

assay

98.5-102.5%

assay

≥99.0% (T)

form

crystals

form

solid

form

crystalline

form

crystals

impurities

reducing matter, complies, residual solvents, complies, ≤0.001% heavy metals (as Pb), ≤1.0% NaH2PO4, 57-61% water (Karl Fischer)

impurities

≤2.5% Sodium Dihydrogene phospate

impurities

-

impurities

-

pH

8.4-9.6 (20 °C, 1%)

pH

9.0-9.3 (20 °C, 50 g/L in H2O)

pH

-

pH

9.0-9.3 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤10 mg/kg, fluoride (F-): ≤10 mg/kg, sulfate (SO42-): ≤100 mg/kg

anion traces

chloride (Cl-): ≤0.0005%, sulfate (SO42-): ≤0.005%

anion traces

-

anion traces

chloride (Cl-): ≤5 mg/kg, fluoride (F-): ≤5 mg/kg, sulfate (SO42-): ≤50 mg/kg

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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