MilliporeSigma
All Photos(1)

Documents

71642

Sigma-Aldrich

Sodium phosphate dibasic

purum p.a., anhydrous, ≥98.0% (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

Quality Level

grade

purum p.a.

assay

≥98.0% (T)

form

powder

loss

≤2% loss on drying, 110 °C

pH

8.8-9.4 (25 °C, 50 mg/mL in H2O)

pKa (25 °C)

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

solubility

water: soluble 50 mg/mL at 25 °C

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤1000 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤200 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

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

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
042761.93609RDD022
Sodium phosphate dibasic purum p.a., anhydrous, ≥98.0% (T)

71642

Sodium phosphate dibasic

-
Sodium phosphate dibasic puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E 339, anhydrous, 98-100.5% (calc. to the dried substance)

04276

Sodium phosphate dibasic

Essential Grade
Sodium phosphate dibasic anhydrous, EMPLURA®

1.93609

Sodium phosphate dibasic

-
Sodium phosphate dibasic anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99.0%

RDD022

Sodium phosphate dibasic

-
grade

purum p.a.

grade

puriss.

grade

-

grade

-

Quality Level

300

Quality Level

200

Quality Level

-

Quality Level

100

form

powder

form

powder

form

-

form

powder

solubility

water: soluble 50 mg/mL at 25 °C

solubility

H2O: soluble 8 parts, H2O: very soluble (Hot), alcohol: insoluble

solubility

-

solubility

water: 100 mg/mL, clear, colorless

pH

8.8-9.4 (25 °C, 50 mg/mL in H2O)

pH

8.4-9.6 (20 °C, 1%)

pH

-

pH

8.9-9.2 (25 °C, 50 g/L in water)

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 5

1 of 5

C Tony Liu et al.
Journal of the American Chemical Society, 136(29), 10349-10360 (2014-07-01)
Electrostatic interactions play an important role in enzyme catalysis by guiding ligand binding and facilitating chemical reactions. These electrostatic interactions are modulated by conformational changes occurring over the catalytic cycle. Herein, the changes in active site electrostatic microenvironments are examined
Samuel Adler et al.
Gastrointestinal endoscopy, 76(6), 1170-1174 (2012-10-03)
Colon capsule endoscopy (CCE) is a noninvasive technique for the detection of colorectal lesions. However, for CCE to be offered as an out-of-clinic procedure, the system needs to automatically alert the patient when to ingest the laxative (booster). We tested
Ines Klingelhöfer et al.
Journal of chromatography. A, 1360, 288-295 (2014-08-26)
The traditional direct bioautography workflow was substantially altered to yield narrow, sharp-bounded effective zones. For the first time, microorganisms quantitatively detected the single effective compounds in complex samples, separated in parallel on a planar chromatogram. This novel effect-directed workflow was
Megan A Rees et al.
Journal of proteome research, 14(1), 120-132 (2014-10-21)
Interactions between a host and a bacterial pathogen are mediated by cross-talk between molecules present on, or secreted by, pathogens and host binding-molecules. Identifying proteins involved at this interface would provide substantial insights into this interaction. Although numerous studies have
Johanna Troberg et al.
Drug metabolism and disposition: the biological fate of chemicals, 43(1), 107-118 (2014-10-11)
Understanding drug glucuronidation in the dog, a preclinical animal, is important but currently poorly characterized at the level of individual enzymes. We have constructed cDNAs for the 10 dog UDP-glucuronosyltransferases of subfamily 1A (dUGT1As), expressed them in insect cells, and

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