磷酸二氢钾

In buffers for pH determination.Potassium dihydrogen phosphate is used as a food additive, fertilizer (NPK), paint additive, coating additive, adhesive, buffering agent and in optical modulators. It is extensively used in research and analytical laboratories as a buffer in mobile/sample preparations for analysis by high pressure liquid chromatography (HPLC) and also in organic synthesis. MKP, monopotassium phosphate, owing to its non-linear optical properties, is used in optical modulators and for second-harmonic generation (SHG).

Loses H{2}O at 400°, forming metaphosphate.Hygroscopic.

MFCD00011401

231-913-4

H₂KO₄P

136.09

253°

2.338

Hygroscopic. Ambient temperatures.

Crystalline

Slightly soluble in water. Insoluble in alcohol

14,7659

36/38
Irritating to eyes and skin.

Maximum level of impurities: Insoluble matter 0.01%, Loss on drying at 105� 0.2%, pH of a 5% solution 4.1-4.5 at 25�, Cl 0.001%, SO₄ 0.003%, Heavy Metals (as Pb) 0.001%, Fe 0.002%, Na 0.005%

26-37-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.This material and its container must be disposed of as hazardous waste

TC6615500

是

 

H315-H319
Causes skin irritation.Causes serious eye irritation.

P280a-P264-P305+P351+P338-P321-P332+P313-P337+P313
Wear protective gloves and eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Specific treatment (see label).If skin irritation occurs: Get medical advice/attention.If eye irritation persists: Get medical advice/attention.