MilliporeSigma
All Photos(1)

Documents

71636

Sigma-Aldrich

Sodium phosphate dibasic

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

Sign Into View Organizational & Contract Pricing

Synonym(s):
sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
Linear Formula:
Na2HPO4
CAS Number:
Molecular Weight:
141.96
EC Number:
MDL number:
eCl@ss:
38070211
PubChem Substance ID:
NACRES:
NA.25

grade

for molecular biology

Quality Level

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

anion traces

chloride (Cl-): ≤10 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: ≤50 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: ≤10 mg/kg
Zn: ≤5 mg/kg

λ

0.5 M in H2O

UV absorption

λ: 260 nm Amax: ≤0.025
λ: 280 nm Amax: ≤0.020

SMILES string

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

InChI

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

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
S7907S5136S3264
Sodium phosphate dibasic BioUltra, for molecular biology, ≥99.5% (T)

71636

Sodium phosphate dibasic

Premium Grade
Sodium phosphate dibasic BioXtra, ≥99.0%

S7907

Sodium phosphate dibasic

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

S5136

Sodium phosphate dibasic

Essential+ Grade
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
  • in the preparation of MgCl2 hybridization buffer
  • as a component in SSPE solution for the preparation of small RNA hybridisation buffer

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 8

1 of 8

Foundations of identifying individual chromosomes by imaging flow cytometry with applications in radiation biodosimetry
Beaton-Green LA, et al.
Methods, 112, 18-24 (2017)
Design of biomimetic collagen matrices by reagent-free electron beam induced crosslinking: Structure-property relationships and cellular response
Riedel S, et al.
Materials & Design, 107606-107606 (2019)
Eva Várallyay et al.
Nature protocols, 3(2), 190-196 (2008-02-16)
MicroRNAs (miRNAs) are short, about 21 nucleotides in length, noncoding, regulatory RNA molecules representing a new layer in post-transcriptional regulation of gene expression. Intensive miRNA research has necessitated the development of effective miRNA detection methods such as northern analyses, quantitative
Kaisorn L Chaichana et al.
Journal of neuroscience methods, 180(1), 116-125 (2009-05-12)
The discoveries of neural (NSCs) and brain tumor stem cells (BTSCs) in the adult human brain and in brain tumors, respectively, have led to a new era in neuroscience research. These cells represent novel approaches to studying normal phenomena such
Janelle M Spinazzola et al.
Human molecular genetics, 24(9), 2470-2481 (2015-01-22)
Loss of gamma-sarcoglycan (γ-SG) induces muscle degeneration and signaling defects in response to mechanical load, and its absence is common to both Duchenne and limb girdle muscular dystrophies. Growing evidence suggests that aberrant signaling contributes to the disease pathology; however

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service