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S2429

Sigma-Aldrich

Sodium phosphate dibasic heptahydrate

meets USP testing specifications

Synonym(s):
Disodium hydrogen phosphate heptahydrate, Disodium phosphate
Linear Formula:
Na2HPO4 · 7H2O
CAS Number:
Molecular Weight:
268.07
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Agency

meets USP testing specifications

Quality Level

vapor density

4.9 (vs air)

Assay

98.0-100.5% dry basis

form

powder, crystals or chunks

pH

9.0-9.3 (25 °C, 50 g/L)

solubility

water: ~35.8 g/L at 20 °C

density

1.68 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

SMILES string

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

InChI

1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2

InChI key

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

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1 of 4

This Item
4314788210-OP1.06574
assay

98.0-100.5% dry basis

assay

≥99.99% trace metals basis

assay

-

assay

-

form

powder, crystals or chunks

form

solid

form

crystalline powder (Fine)

form

solid

pH

9.0-9.3 (25 °C, 50 g/L)

pH

8.7-9.3

pH

-

pH

8.7-9.3 (25 °C, 50 g/L in H2O)

solubility

water: ~35.8 g/L at 20 °C

solubility

-

solubility

-

solubility

154 g/L

density

1.68 g/mL at 25 °C (lit.)

density

1.68 g/mL at 25 °C (lit.)

density

1.68 g/mL at 25 °C (lit.)

density

1.68 g/mL at 25 °C (lit.)

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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Customers Also Viewed

Slide 1 of 5

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Walter Grünberg et al.
The British journal of nutrition, 110(6), 1012-1023 (2013-04-03)
Hypophosphataemia is frequently encountered in dairy cows during early lactation. Although supplementation of P is generally recommended, controversy exists over the suitability of oral P supplementation in animals with decreased or absent rumen motility. Since the effects of transruminal P
M A Marzouk et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 114, 658-667 (2013-07-03)
The effects of gamma irradiation on spectral properties of Cr2O3-doped phosphate glasses of three varieties, namely sodium metaphosphate, lead metaphosphate and zinc metaphosphate have been investigated. Optical spectra of the undoped samples reveal strong UV absorption bands which are attributed
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
H Meredith et al.
International journal of food microbiology, 166(2), 309-315 (2013-08-27)
Campylobacteriosis is the most common foodborne bacterial infection in developed countries and many cases are associated with poultry. This study investigated the immediate and storage effect of dipping inoculated poultry skin samples in trisodium phosphate (TSP, 10 & 14%, w/v)
Jonathan Belsey et al.
Current medical research and opinion, 28(12), 1883-1890 (2012-11-10)
It is unclear whether small bowel visibility in video capsule endoscopy (VCE) is enhanced by the use of bowel preparation in addition to pre-procedural fasting. The objective of this study was to clarify this issue by means of a systematic

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