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71636

Sigma-Aldrich

Sodium phosphate dibasic

BioUltra, for molecular biology, ≥99.5% (T)

Synonym(s):

sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

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30 MG
MYR 5,214.20

MYR 5,214.20

Estimated to ship on17 May 2025

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30 MG
MYR 5,214.20

About This Item

Linear Formula:
Na2HPO4
CAS Number:
7558-79-4
Molecular Weight:
141.96
EC Number:
231-448-7
MDL number:
MFCD00003496
UNSPSC Code:
12161700
eCl@ss:
38070211
PubChem Substance ID:
57652328
NACRES:
NA.25

MYR 5,214.20

Estimated to ship on17 May 2025

Request a Bulk Order

grade

for molecular biology

Quality Level

200

product line

BioUltra

Assay

≥99.5% (T)

form

coarse powder
fine crystals
powder

impurities

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

loss

≤0.1% loss on drying, 110 °C

pH

8.8-9.4 (25 °C, 0.5 M in H2O)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

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Sodium phosphate dibasic BioUltra, for molecular biology, ≥99.5% (T)

71636

Sodium phosphate dibasic

Sodium phosphate dibasic BioXtra, ≥99.0%

S7907

Sodium phosphate dibasic

Sodium phosphate dibasic BioReagent, suitable for cell culture, suitable for insect cell culture, ≥99.0%

S5136

Sodium phosphate dibasic

Sodium phosphate dibasic for molecular biology, ≥98.5% (titration)

S3264

Sodium phosphate dibasic

assay

≥99.5% (T)

assay

≥99.0%

assay

≥99.0%

assay

≥98.5% (titration)

product line

BioUltra

product line

BioXtra

product line

BioReagent

product line

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

300

form

coarse powder, fine crystals

form

powder or crystals

form

powder or crystals

form

powder

solubility

H2O: 0.5 M at 20 °C, clear, colorless

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

water: soluble 100 mg/mL

solubility

H2O: 100 mg/mL

Application

Sodium phosphate dibasic has been used:
  • as a component in phosphate buffer[1]
  • in the preparation of MgCl2 hybridization buffer[2]
  • as a component in SSPE solution for the preparation of small RNA hybridisation buffer[3]

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

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    Certificates of Analysis (COA)

    Lot/Batch Number
    BCCF9210
    BCCD3004
    BCCB6228
    BCBZ7640
    BCBX4599

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