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S9390

Sigma-Aldrich

Sodium phosphate dibasic heptahydrate

ACS reagent, 98.0-102.0%

동의어(들):

Disodium hydrogen phosphate heptahydrate, Disodium phosphate

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About This Item

Linear Formula:
Na2HPO4 · 7H2O
CAS Number:
7782-85-6
Molecular Weight:
268.07
EC Number:
237-707-0
MDL number:
MFCD00149180
UNSPSC 코드:
12352302
PubChem Substance ID:
329824623
NACRES:
NA.21

Grade

ACS reagent

Quality Level

200

vapor density

4.9 (vs air)

분석

98.0-102.0%

형태

powder

불순물

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

density

1.68 g/mL at 25 °C (lit.)

음이온 미량물

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

양이온 미량물

Fe: ≤0.001%
heavy metals: ≤0.001% (by ICP)

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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일반 설명

Sodium phosphate dibasic heptahydrate is a hydrated form of disodium phosphate (DSP) or disodium hydrogen orthophosphate. DSP is widely used as a pH regulator and saline laxative.

애플리케이션

A mixture of sodium phosphate dibasic heptahydrate, potassium phosphate monobasic, and NaCl in deionized water is used for the preparation of phosphate-buffered saline (PBS, pH 7.4). PBS is used as a buffer solution in biological research to keep the pH constant.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

시험 성적서(COA)

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이미 열람한 고객

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Sodium phosphate dibasic BioXtra, ≥99.0%

Sigma-Aldrich

S7907

Sodium phosphate dibasic

di-Sodium hydrogen phosphate heptahydrate EMPROVE® ESSENTIAL, DAC, USP

SAFC

1.06574

di-Sodium hydrogen phosphate heptahydrate

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