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ISO borax decahydrate 95% 99.5% white powder
ISO borax decahydrate 95% 99.5% white powder

borax deca 99.5% factory 1.ISO or SGS certificate 2.competitive price 3.delivery quickly 4.free sample&professional service

Borax deca ( Borax decahydrate )CAS No.: 11130-12-4

EINECS No.: 215-540-4 Purity: 99.5% 95% 

Molecular Formula: Na2B4O7.10H2O

Molecular Weight: 381.37 

Melting point: 320°C

Boiling point: 1575°C 

HS Code: 25281000.00

Standard execute: GB/T537-1997

  

 Specifications:

ITEM

Specification

Premium grade

First grade

Sodium Borate 10 Hydrous (Na2B4O7·10H2O)%≥

99.5%

95.0%

Sodium carbonate (Na2CO3) % ≤

0.1%

0.2%

Insoluble matter in water % ≤

0.04%

0.04%

Sodium Sulfate (Na2SO4) % ≤

0.1%

0.2%

Sodium Chloride (NaCl) % ≤

0.03%

0.05%

Iron (Fe) % ≤

0.002%

0.005%

Item

Na2B4O7.10H20

Item

Na2B4O7.5H20

Content of Fe % ≤

0.002

Fe ppm

10

Content of Na2B4O7.10H2O % ≥

99.5

Content of Na2B4O7.5H2O

101.7-103.1

Content of CO3 % ≤

0.1

Content of Na20

21.6-21.9

Content of Non-dissolved substance % ≤

0.04

Non-dissolved substance ppm

400

Content of SO42-  % ≤

0.1

SO42-ppm

100

Content of Cl- % ≤

0.03

Cl-ppm

120

  

Properties: White powder crystal, specific weight 1.69-1.73, hardness 2-2.5. It is soluble in water, in soluble in alcohol and the solution indicating wealk baicity. When heated to 350-4.00, it loses the crystal water and changes into waterless borax, which feature sterilizing. It will do harm to one's health taking orally.

  

Uses: An important material for glass, enamel, ceramics, nonferrous mental, metallurgical industry, etc. It can be used as a micro-element manure and disinfectant in agriculture, and it is also widely used in pharmaceutical industry. Borax is also a basic raw material for boride and high energy boron hyduide fuel.

ISO borax decahydrate 95% 99.5% white powder

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