229806
Potassium phosphate monobasic
99.99% trace metals basis
Synonym(s):
Potassium dihydrogen phosphate, prim.-Potassium phosphate
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About This Item
Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-913-4
MDL number:
Assay:
99.99% trace metals basis
Form:
solid
Solubility:
water: soluble
Quality Level
assay
99.99% trace metals basis
form
solid
reaction suitability
core: potassium
impurities
≤150.0 ppm Trace Metal Analysis
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
mp
252.6 °C (lit.)
solubility
water: soluble
density
2.338 g/mL at 25 °C (lit.)
cation traces
Al: ≤0.3 ppm, Ca: ≤16.1 ppm, Cr: ≤0.3 ppm, Fe: ≤1.5 ppm, Mg: ≤0.2 ppm, Mn: ≤0.1 ppm, Na: ≤11.8 ppm, Rb: ≤9.6 ppm
SMILES string
[K+].OP(O)([O-])=O
InChI
1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChI key
GNSKLFRGEWLPPA-UHFFFAOYSA-M
General description
Monobasic potassium phosphate crystals are colorless, soluble in water and hygroscopic in nature.Upon heating through 187°C, phase transition occurs in KH2PO4, crystal system changes from tetragonal to monoclinic, lattice parameters at 195°C are α=7.47Å, b =7.33Å, c =14.49Å, α=β=90° and γ=92.2.
Application
it maybe used
- to produce flurescence emmisionin carbon dots
- buffers
- pH control agent
- emulsifier
- stabilizer
- water retention agent,
- antioxidant in foods
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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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Zheng-Chun Yang et al.
Chemical communications (Cambridge, England), 47(42), 11615-11617 (2011-09-21)
A facile method is developed to synthesize intrinsically fluorescent carbon dots by hydrothermal treatment of glucose in the presence of monopotassium phosphate. The fluorescence emission of the carbon dots thus produced is tunable by simply adjusting the concentration of monopotassium
X-Ray Study of High-Temperature Phase Transitions in KH2PO4
Itoh K,et al
Journal of the Physical Society of Japan, 39, 843-849 (1975)
Przemyslaw Nogly et al.
IUCrJ, 2(Pt 2), 168-176 (2015-04-14)
Lipidic cubic phases (LCPs) have emerged as successful matrixes for the crystallization of membrane proteins. Moreover, the viscous LCP also provides a highly effective delivery medium for serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs). Here, the adaptation of
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 229806-2.5KG | 04061832968445 |
| 229806-250G | 04061838782113 |
| 229806-25G | 04061838782120 |