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Merck

24-5290

Potassium phosphate monobasic

≥99.5%

Synonym(s):

Potassium dihydrogen phosphate, prim.-Potassium phosphate

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About This Item

Linear Formula:
KH2PO4
CAS Number:
7778-77-0
Molecular Weight:
136.09
UNSPSC Code:
12352302
PubChem Substance ID:
329752697
EC Number:
231-913-4
MDL number:
MFCD00011401
assay:
≥99.5%
grade:
SAJ special grade
form:
crystalline

Product Name

Potassium phosphate monobasic, ≥99.5%

InChI key

GNSKLFRGEWLPPA-UHFFFAOYSA-M

InChI

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

SMILES string

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

grade

SAJ special grade

assay

≥99.5%

form

crystalline

availability

available only in Japan

pKa (25 °C)

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

mp

252.6 °C (lit.)

density

2.338 g/mL at 25 °C (lit.)

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Related Categories

Application

pH standard solution

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
U4231
U5126
U4921
U0342
U2695

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