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71505

Sigma-Aldrich

Sodium phosphate monobasic dihydrate

BioUltra, for molecular biology, ≥99.0% (T)

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Synonym(s):
Sodium dihydrogen phosphate dihydrate
Linear Formula:
NaH2PO4 · 2H2O
CAS Number:
Molecular Weight:
156.01
EC Number:
MDL number:
PubChem Substance ID:

grade

for molecular biology

product line

BioUltra

Assay

≥99.0% (T)

form

powder or crystals

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected

pH

4.0-4.5 (25 °C, 1 M in H2O)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.2 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤200 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.085
λ: 280 nm Amax: 0.070

application(s)

diagnostic assay manufacturing

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

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715007164371507
Sodium phosphate monobasic dihydrate BioUltra, for molecular biology, ≥99.0% (T)

Sigma-Aldrich

71505

Sodium phosphate monobasic dihydrate

Premium Grade
Sodium phosphate dibasic dihydrate BioUltra, for molecular biology, ≥99.0% (T)

Sigma-Aldrich

71643

Sodium phosphate dibasic dihydrate

Premium Grade
Sodium phosphate monobasic monohydrate BioXtra, for molecular biology, ≥99.5% (T)

Sigma-Aldrich

71507

Sodium phosphate monobasic monohydrate

Premium Grade
product line

BioUltra

product line

-

product line

BioUltra

product line

BioXtra

assay

≥99.0% (T)

assay

≥99.0% (T)

assay

≥99.0% (T)

assay

≥99.5% (T)

form

powder or crystals

form

crystals

form

crystals

form

crystals

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

impurities

-

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.001% total nitrogen (N)

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, ≤0.001% total nitrogen (N)

pH

4.0-4.5 (25 °C, 1 M in H2O)

pH

4.0-4.5 (25 °C, 50 mg/mL in H2O)

pH

8.9-9.2 (25 °C, 0.5 M in H2O)

pH

4.0-4.5 (25 °C, 1 M in H2O)

Application

Sodium phosphate monobasic dehydrate has been used in the preparation of the phosphate buffer solution and SCCP solution. It has also been used in the preparation of stop buffer.

Other Notes

Gel electrophoresis - running buffer component for denaturing gels containing formamide

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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