Sodium tetraborate decahydrate

Molecular formula: Na2B4O7·10H2O
Molecular weight: 381.37

CAS:1303-96-4

Executive standard:GB/T 632-2008

Item

AR

Result

Purity                              %

99.5-105

99.95

Chloride(Cl)                        %

≤0.002 

＜0.002

Clarity test

≤4

合格

Heavy metals(以Pb计)                %

≤0.001

＜0.0005

Phosphate(PO4)                       

≤0.002

＜0.002

Ignition residue(SO4)               %

≤0.01

＜0.01

Calcium(Ca)                         %

≤0.005

0.0026

Iron(Fe)                            %

≤0.0003 

＜0.0003

copper(Cu)                         %

≤0.001

0.0006

acid non-soluble substance          %

≤0.005

0.003


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