..国产精品人人做人人爽_免费毛片搬运工永久发布页_国产无遮挡又黄又爽在线看_嘟嘟嘟影院免费韩国_日韩动漫一区二区三区_日韩三级毛片电影_一级特黄大片大全_蜜桃AV国内精品自在线拍_国产偷情熟女自拍视频_日本熟妇网站大全

Food additives
Potassium dihydrogen phosphate


Product name

Potassium dihydrogen phosphate

Specification

Food grade

Molecular formula

KH2PO4

CAS

7778-77-0

H.S. CODE

2835240000

Molecular weight

136.09

Appearance

Colorless crystal

Package

25KG Woven bags or fiber drums

Property

     Colorless sifang crystals or white crystalloid powder. The relative density 2.338. Melting point 252.6 ℃. Soluble in water (90 ℃ for improve g / 100ml canister water), become acidic aqueous solution, 1% linsuanerqingjia solution pH value is 4.6. Not soluble in alcohol. Have ChaoXie sex. Heating and 400 ℃ melted and transparent liquid, after cooling curing is not transparent glass shape partial potassium phosphate.

Application:

    Analytics reagents, such as configuration standard solution, buffer a PH. Also used in the pharmaceutical industry, piezoelectric element and electric optical components production.

Test standardGB 25560-2010


Test items

Specification

Food grade

Appearance

Colorless crystal

Assay

98.0%

pH

4.2~4.7

Water insoluble

0.2%

Loss on dry

1.0%

Fluoride

10mg/kg

Arsenic

3mg/kg

Lead

2mg/kg

Heavy metals

10mg/kg

Storage

    Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.

Product categories
Copyright Langfang hui's fine chemical co., LTD. All rights reserved 冀ICP備20000901號(hào)-1
TOP