product details

Beijing KangPuHuiWei Technology Co.,Ltd.

Borax

Product Information

Borax    Na2B4O7·10H2O

Relative molecular Weight:381.42

Properties:Colorless transparent blockcrystal or crystalline powder.Weathering in dry air.100 ° C lose fivemolecules of crystal water.320 ℃ completely dehydrated.The temperature of 75 ° C.Solublein water and glycerol,The aqueous solution is basic.Insoluble in alcohol andacids.

Reference standard: GB 6856-86  GB/T632-93

Specifications: Content and content of impurities in %

Test Items

分析纯

化学纯

Content

99.5

99.0

Clarity test

合格

合格

Hydrochloricacid insoluble matter

0.002

0.02

Chloride (Cl)

0.002

0.005

Sulfate(SO4)

0.01

0.015

Phosphate(PO4)

0.002

0.005

Magnesium and calcium(以Ca计)

0.005

0.02

Iron(Fe)

0.0003

0.0005

Copper(Cu)

0.001

0.002

Lead(Pb)

0.001

0.002

Usage:Used as analytical reagent,such asthe pH value of the standard, the preparation of buffer solution, as asolvent.also used in the electronics industry.

      

 

 

Reagent AR/CP Borax

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