应用
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).

Grade Specifications
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%, SO₄0.003%, Heavy Metals (as Pb) 0.001%, Fe 0.002%, Na 0.005%

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

基本信息

MDL
MFCD00011401

EINECS
231-913-4

分子式
H₂KO₄P

分子量
136.09

熔点
253°

密度
2.338

灵敏度
Hygroscopic. Ambient temperatures.

形态
Crystalline

溶解性
Slightly soluble in water. Insoluble in alcohol

Merck
14,7659

GHS危害和防范说明

GHS符号

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

Precautionary Statements
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.

安全信息

危险类别
36/38
Irritating to eyes and skin.

安全等级
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

RTECS
TC6615500

TSCA
是