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71505

Sigma-Aldrich

Sodium phosphate monobasic dihydrate

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

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
EC Number:
231-449-2
MDL number:
MFCD00149209
UNSPSC Code:
12161700
PubChem Substance ID:
57652311
NACRES:
NA.21

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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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

13 - Non 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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