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Merck
CN

S9638

Sodium phosphate monobasic monohydrate

ACS reagent, ≥98%

Synonym(s):

Monosodium phosphate, Sodium dihydrogen phosphate monohydrate

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About This Item

Linear Formula:
NaH2PO4 · H2O
CAS Number:
10049-21-5
Molecular Weight:
137.99
NACRES:
NA.21
PubChem Substance ID:
329824629
UNSPSC Code:
12352302
EC Number:
231-449-2
MDL number:
MFCD00149208
Assay:
≥98%
98.0-102.0%
Grade:
ACS reagent
Form:
crystalline

Key Documents

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Product Name

Sodium phosphate monobasic monohydrate, ACS reagent, ≥98%

InChI key

BBMHARZCALWXSL-UHFFFAOYSA-M

InChI

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

SMILES string

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

grade

ACS reagent

assay

≥98%
98.0-102.0%

form

crystalline

impurities

≤0.01% Insoluble matter

pH

4.1-4.5 (25 °C, 5% in solution)

anion traces

chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.003%

cation traces

Ca: ≤0.005%
Fe: ≤0.001%
K: ≤0.01%
heavy metals: ≤0.001% (by ICP-OES)

Quality Level

200

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Application

Sodium phosphate monobasic monohydrate has been used for the preparation of modified Tyrode′s calcium-free buffer, citrate-albumin buffer, lysis buffer for Sf9 cells and phosphate buffer.

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000490549
0000492286
0000490545
0000490545
0000492286

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Protocols

Enzymatic Assay of Alcohol Dehydrogenase (EC 1.1.1.1)

To measure alcohol dehydrogenase activity, this assay uses β-nicotinamide adenine dinucleotide phosphate and a continuous spectrophotometric rate determination at 340 nm.

醇脱氢酶（EC 1.1.1.1）的酶学测定

在测定醇脱氢酶活性时，该测定使用β-烟酰胺腺嘌呤二核苷酸磷酸和在340nm处的连续分光光度法进行测定。

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