ISO borax decahydrate 95% 99.5% white powder

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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