- Potassium
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- Potassium (4-formylphenyl)trifluoroborate
- Potassium (bromomethyl)trifluoroborate
- Potassium (R)-((3-ethoxy-1-methyl-3-oxoprop-1-enyl)amino)(4-hydroxyphenyl)acetate
- Potassium (R)-(4-hydroxyphenyl)((3-methoxy-1-methyl-3-oxoprop-1-enyl)amino)acetate
- Potassium (R)-[(3-ethoxy-1-methyl-3-oxoprop-1-enyl)amino]phenylacetate
- Potassium [(cyanomethyl)thio]acetate
- Potassium 1,2,3,6-tetrahydro-5-nitro-2,6-dioxopyrimidine-4-carboxylate
- Potassium 2,2-dimethyl-1,3-dioxolane-4-carboxylate
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- 777903-15-82H-Isoindole-2-propanoic acid, 1,3-dihydro-?-methyl-1,3-dioxo-, ethyl ester
- 777903-44-32H-Isoindole-2-propanoic acid, ?-(4-ethylphenyl)-1,3-dihydro-1,3-dioxo-, ethyl ester
- 77790-61-5Pyridine,2-(2-pyrrolidinyl)-
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| Name |
Potassium dihydrogen phosphate |
EINECS | 231-913-4 |
| CAS No. | 7778-77-0 | Density | 2.338 g/mL at 25 °C(lit.) |
| PSA | 90.40000 | LogP | -0.49040 |
| Solubility | water: 222 g/L (20 °C) | Melting Point |
252.6 °C(lit.) |
| Formula | KH2PO4 | Boiling Point | 158oC at 760 mmHg |
| Molecular Weight | 136.08 | Flash Point | N/A |
| Transport Information | N/A | Appearance | white powder |
| Safety | 24/25-45-36/37/39-26 | Risk Codes | 36/38-35-22 |
| Molecular Structure |
|
Hazard Symbols |
 F, T, C, Xi
|
| Synonyms |
Potassium phosphate (xK);Monopotassium phosphate (industrial grade);Potassiumphosphatemonobasic;Mono Potassium Phosphate(MKP);Mono-potassium phosphate (MKP);Potassium phosphate,monobasic;Monopotassium phosphate anhydrous;Monopotassium phosphate (MKP);Industrial Grade Monopotassium Phosphate MKP;Potassium Phosphate Monobasic ACS Powder;Orthophosphoric acid, monopotassium salt;Potassium hydrogen phosphate (KH2PO4);Phosphoric acid, monopotassium salt;Sorensens potassium phosphate;Potassium dihydrogenorthophosphate;Monopotassium Phosphate(MKP);Monopatassium phosphate;Monopotassium Phosphate;Potassium Phosphate Monobasic;MonoPotassium Phosphate; potassium dihydrogen phosphate; MKP; |
Potassium dihydrogen phosphate Specification
1. Introduction of Potassium dihydrogen phosphate
Potassium dihydrogen phosphate, its cas register number is 7778-77-0. It also can be called Monobasic potassium phosphate ; Monopotassium dihydrogen phosphate ; Monopotassium monophosphate ; Monopotassium orthophosphate ; Monopotassium phosphate ; Orthophosphoric acid, monopotassium salt ; hosphoric acid, monopotassium salt ; Potassium acid phosphate ; Potassium dihydrogen orthophosphate ; Potassium orthophosphate, dihydrogen ; Potassium phosphate, monobasic ; Sorensen's potassium phosphate.
2. Properties of Potassium dihydrogen phosphate
Boiling Point: 158 °C at 760 mmHg
Melting Point: 252.6 °C(lit.)
Density: 2.338 g/mL at 25 °C(lit.)
Storage temp: Store at RT.
Solubility: H2O: 1.5 M at 20 °C, clear, colorless
Water Solubility: 222 g/L (20 ºC)
Sensitive: Hygroscopic
Vapour Pressure: 1.41 mmHg at 25°C
Product Categories: Inorganics;Anionic SolutionsChromatography;Anionic Standard SolutionsAlphabetic;Application CRMs;Ion
3. Structure Descriptors of Potassium dihydrogen phosphate
Chromatography;Ion Chromatography Standards;P;PER - POLA
Canonical SMILES: OP(=O)(O)[O-].[K+]
InChI: InChI=1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChIKey: GNSKLFRGEWLPPA-UHFFFAOYSA-M
4. Toxicity of Potassium dihydrogen phosphate
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rabbit | LD50 | skin | > 4640mg/kg (4640mg/kg) | National Technical Information Service. Vol. OTS0571153, | |
| rat | LDLo | oral | 4640mg/kg (4640mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) GASTROINTESTINAL: OTHER CHANGES | National Technical Information Service. Vol. OTS0571153, |
5. Safety Information of Potassium dihydrogen phosphate
Hazard Codes: 
F,
T,
C,
Xi
Risk Statements: 36/38-35-22
R36/38:Irritating to eyes and skin.
R35:Causes severe burns.
R22:Harmful if swallowed.
Safety Statements: 24/25-45-36/37/39-26
S24/25:Avoid contact with skin and eyes.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: 3260
WGK Germany: 2
RTECS: TC6615500
F: 8-10
HS Code: 28352400
6. Use of Potassium dihydrogen phosphate
Potassium dihydrogen phosphate is used as a fertilizer, a food additive and a fungicide. It is used in optical modulators and for non-linear optics such as SHG (second-harmonic generation).
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