产品名称

磷酸氢二钾

CAS NO

7758-11-4

中文别名

磷酸氢二钾,无水;无水磷酸氢二钾;磷酸氢钾

英文名称

Phosphoric acid,potassium salt (1:2)

英文别名

Phosphoricacid, dipotassium salt (8CI,9CI); Conclyte P; DKP; Dibasic potassium phosphate;Dipotassium hydrogen orthophosphate; Dipotassium hydrogen phosphate;Dipotassium hydrogen phosphate (K2HPO4); Dipotassium monohydrogen phosphate;Dipotassium monophosphate; Dipotassium orthophosphate; Dipotassium phosphate;Dipotassium phosphate (K2HPO4); Hydrogen dipotassium phosphate; Potassiumbiphosphate; Potassium dibasic phosphate (K2HPO4); Potassium hydrogen phosphate(K2HPO4); Potassium monohydrogen phosphate; Potassium monophosphate; Potassiumphosphate (K2HPO4); Potassium phosphate dibasic; Rhodiaphos DKP

分子式

H₃O₄P.2K

分子量

174.17

EINECS

231-834-5

熔点

340 °C

沸点

158oC at 760 mmHg

毒性

磷酸氢二钾 一、    产品简介白色粒状结晶，吸湿潮解，灼热成焦磷酸盐。能溶于水，微溶于醇。水溶液对酚酞成微碱性。二、技术指标指标名称工业级食品级主含量（以K HPO4 3H2O计）≥98.0%≥98.0%五氧化二磷（以P2O5计）≥40.0%≥40.0%氧化钾（以K2O计）≥53.0%≥53.0%水不溶物≤0.25%≤0.25%砷（以As计）≤0.002%≤0.0003%铁（以Fe计）≤0.004%≤0.003%重金属（以Pb计）≤0.005%≤0.0005%氯化物（以Cl计）≤0.5%≤0.006%水份≤3.0%≤3.0%PH（1%水溶液）8.9-9.68.9-9.6