Home > Compound List > Product Information
Potassium phosphate monobasic_Molecular_structure_CAS_7778-77-0)
Click picture or here to close

Potassium phosphate monobasic

Catalog No. 60221 Name Sigma Aldrich
CAS Number 7778-77-0 Website http://www.sigmaaldrich.com
M. F. H2KO4P Telephone 1-800-521-8956
M. W. 136.085541 Fax
Purity ≥99.5% (T) Email
Storage Chembase ID: 105585

SYNONYMS

Title
磷酸钾 一元
IUPAC name
potassium dihydrogen phosphate
IUPAC Traditional name
potassium dihydrogen phosphate
Synonyms
prim.-Potassium phosphate
Potassium dihydrogen phosphate
无水磷酸二氢钾
Monopotassium phosphate
磷酸一钾
磷酸二氢钾

DATABASE IDS

CAS Number 7778-77-0
PubChem SID 24881814
MDL Number MFCD00011401
EC Number 231-913-4

PROPERTIES

Description anhydrous
Grade for HPLC
λ 10 % in H2O
Linear Formula KH2PO4
Purity ≥99.5% (T)
Purity ≥99.5%
Suitability corresponds for filter test
Suitability corresponds to standard for RP gradient test
Absorption Wavelength λ: 210 nm Amax: 0.1
Absorption Wavelength λ: 220 nm Amax: 0.06
Absorption Wavelength λ: 230 nm Amax: 0.04
Absorption Wavelength λ: 300 nm Amax: 0.02
Absorption Wavelength λ: 500 nm Amax: 0.02
pKa (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) (25°C)
Density 2.338 g/mL at 25 °C(lit.)
Melting Point 252.6 °C(lit.)
Solubility H2O: soluble0.1 g/mL at 25 °C, clear, colorless
MSDS Link Download
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
RTECS TC6615500
German water hazard class 2

DETAILS

REFERENCES