MilliporeSigma
All Photos(1)

Documents

71650

Sigma-Aldrich

Sodium phosphate dibasic dodecahydrate

puriss. p.a., crystallized, ≥99.0% (T)

All Photos(1)
Synonym(s):
sec-Sodium phosphate, Disodium hydrogen phosphate dodecahydrate, Disodium phosphate, di-Sodium hydrogen phosphate dodecahydrate
Linear Formula:
Na2HPO4 · 12H2O
CAS Number:
10039-32-4
Molecular Weight:
358.14
EC Number:
231-448-7
MDL number:
MFCD00149181
PubChem Substance ID:
329763400
NACRES:
NA.21

grade

puriss. p.a.

Quality Level

200

Assay

≥99.0% (T)

form

crystals

quality

crystallized

pH

9.0-9.3 (25 °C, 50 mg/mL in H2O)

solubility

water: soluble 35.8 g/L at 20 °C

anion traces

chloride (Cl-): ≤5 mg/kg
fluoride (F-): ≤5 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.5 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
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

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

InChI

1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2

InChI key

DGLRDKLJZLEJCY-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
71649042731.06573
Sodium phosphate dibasic dodecahydrate puriss. p.a., crystallized, ≥99.0% (T)

Sigma-Aldrich

71650

Sodium phosphate dibasic dodecahydrate

Sodium phosphate dibasic dodecahydrate BioXtra, ≥99.0% (T)

Sigma-Aldrich

71649

Sodium phosphate dibasic dodecahydrate

Sodium phosphate dibasic dodecahydrate meets analytical specification of Ph. Eur., BP, E339, 98.5-102.5% (T)

Sigma-Aldrich

04273

Sodium phosphate dibasic dodecahydrate

di-Sodium hydrogen phosphate dodecahydrate crystalline, EMPROVE® ESSENTIAL, Ph. Eur., BP, ChP, JP, USP

SAFC

1.06573

di-Sodium hydrogen phosphate dodecahydrate

assay

≥99.0% (T)

assay

≥99.0% (T)

assay

98.5-102.5% (T)

assay

-

form

crystals

form

crystals

form

crystals

form

crystalline, solid

pH

9.0-9.3 (25 °C, 50 mg/mL in H2O)

pH

8.8-9.4 (25 °C, 0.1 M in H2O)

pH

8.4-9.6 (20 °C, 1%)

pH

9.0-9.3 (20 °C, 50 g/L in H2O)

solubility

water: soluble 35.8 g/L at 20 °C

solubility

H2O: 0.1 M at 20 °C, clear, colorless

solubility

-

solubility

218 g/L

anion traces

chloride (Cl-): ≤5 mg/kg, fluoride (F-): ≤5 mg/kg, sulfate (SO42-): ≤50 mg/kg

anion traces

chloride (Cl-): ≤5 mg/kg, fluoride (F-): ≤5 mg/kg, sulfate (SO42-): ≤50 mg/kg

anion traces

chloride (Cl-): ≤10 mg/kg, fluoride (F-): ≤10 mg/kg, sulfate (SO42-): ≤100 mg/kg

anion traces

-

General description

Sodium phosphate is a colorless crystalline sodium salt. It is widely used as a buffer in molecular biology, biochemistry, and chromatographic studies. It exists in three forms: monobasic (NaH2PO4), dibasic (Na2HPO4), and tribasic (Na3PO4). Monobasic and dibasic forms in varying ratios are commonly used to compose the neutral sodium phosphate buffer solution.

Application

Sodium phosphate dibasic dodecahydrate may be used to prepare the 0.1M phosphate buffer having pH 7.4.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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 7

1 of 7

Disodium hydrogen phosphate NIST SRM 2186II

NIST2186II

Disodium hydrogen phosphate

Sodium sulfate decahydrate ACS reagent, ≥99.0%

Sigma-Aldrich

403008

Sodium sulfate decahydrate

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

Sigma-Aldrich

71505

Sodium phosphate monobasic dihydrate

Hypotaurine ≥98% (TLC)

Sigma-Aldrich

H1384

Hypotaurine

Potassium phosphate monobasic buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%

Sigma-Aldrich

60220

Potassium phosphate monobasic

Sodium phosphate dibasic heptahydrate meets USP testing specifications

Sigma-Aldrich

S2429

Sodium phosphate dibasic heptahydrate

Sodium sulfate suitable for HPLC, LiChropur™, 99.0-101.0% (T)

Supelco

80948

Sodium sulfate

Chia Lin Chang et al.
Evidence-based complementary and alternative medicine : eCAM, 2012, 125247-125247 (2011-07-15)
The objectives of this study were to determine phytochemical compositions, chemiluminescence antioxidant activities, and neuroprotective effects on PC12 cells for water, methanol, and 95% ethanol extracts of the air-dried fruit of Terminalia chebula Retzius. The water extract afforded the greatest
Matthew H Crouthamel et al.
Arteriosclerosis, thrombosis, and vascular biology, 33(11), 2625-2632 (2013-08-24)
Elevated serum phosphate has emerged as a major risk factor for vascular calcification. The sodium-dependent phosphate cotransporter, PiT-1, was previously shown to be required for phosphate-induced osteogenic differentiation and calcification of cultured human vascular smooth muscle cells (VSMCs), but its
Karen Sliwa et al.
Heart (British Cardiac Society), 100(24), 1967-1974 (2014-09-18)
Lack of evidence-based data on the spectrum of cardiovascular disease (CVD) in pregnancy or in the postpartum period, as well as on maternal and fetal outcome, provides challenges for treating physicians, particularly in areas of low resources. The objectives of
Yuichiro Yano et al.
Journal of the American College of Cardiology, 65(4), 327-335 (2015-01-31)
Isolated systolic hypertension (ISH), defined as systolic blood pressure (SBP) ≥140 mm Hg and diastolic blood pressure (DBP) <90 mm Hg, in younger and middle-aged adults is increasing in prevalence. The aim of this study was to assess the risk
Luciano Candilio et al.
Heart (British Cardiac Society), 101(3), 185-192 (2014-09-26)
Remote ischaemic preconditioning (RIPC), using brief cycles of limb ischaemia/reperfusion, is a non-invasive, low-cost intervention that may reduce perioperative myocardial injury (PMI) in patients undergoing cardiac surgery. We investigated whether RIPC can also improve short-term clinical outcomes. One hundred and
View All Related Papers

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