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

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).