Высокое качество Лидер продаж порошок борной кислоты

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price of boric acid


 


CAS No.: 10043-35-3/ 11113-50-1


 


EINECS No.: 233-139-2


 


Appearance: white crystal


 


Purity: 95%  99.5%


 


MF: H3BO3


 


Grade Standard: Industrial Grade, Agricultural Grade


 


Melting point: 169 °C


 


Boiling point: 300 °C


 


Relative molecular mass: 61.83


 


1.Usage:


 


Boric acid is used extensively for the glass industry, in particular E-glass fibers, but also can not be substituted borax. In the enamel, ceramic industry, products used to enhance the gloss and fastness. Can be used for medicine and wood preservation. Fungicides can be done in agriculture, pesticides, and trace element fertilizers. Boric acid is produced diboride matrix material, and its metal welding, leather, precious stones, electronics, defense and scientific research departments have widely applied. 


  


2. Appearance: White crystal powder or three oblique axial plane of the scaly and shiny crystal.


 


3. Boric acid specification:


 

























































 


Item



Indicators



Excellent product



First-class product



Qualified



boric acid(H3BO3)



99.6-99.8%



99.3-99.4%



99.0%



water insoluble  



0.010 max



0.040



0.060



Sulfate  



0.10  max



0.20



0.30



Chloride 



0.010 max



0.050



0.10



Fe  



0.001 max



0.0015



0.0020



NH3  



0.30  max



0.50



0.70



Heavy Metal(Pb)  



0.001



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