Оптовая цена борный пентагидрат na2b4o7.5h2o na2b4o7.10h2o na2b4o7 тетраборат

     Anhydrous borax, also known as sodium tetraborate, α orthorhombic crystal melting point of 742.5 ℃. Density 2.28, β orthorhombic crystal melting point of 664 ° C. Density is 2.75, traits of white crystalline or colorless glassy crystals, strong moisture absorption, it dissolves in water, glycerol, slowly dissolved in methanol, can form a concentration of 13-16% of the solution, the aqueous solution was weakly alkaline, insoluble in alcohol. Borax is heated to 350 ~ 400 ℃ obtain anbydrous borax. Put it in the air, it will change to borax decahydrate or borax pentahydrate by absorbing moisture

A. Household products

Borax is used in various household laundry and cleaning products. Borax is also present in some tooth bleaching formulas.

B. Buffer

Sodium borate is used in biochemical and chemical laboratories to make buffers, e.g. for gel electrophoresis of DNA, such as TBE or the newer SB buffer or BBS (borate buffered saline) in coating procedures. Borate buffers (usually at pH 8) are also used as preferential equilibration solution in DMP-based crosslinking reactions.

C. Flux

A mixture of borax and ammonium chloride is used as a flux when welding iron and steel. It lowers the melting point of the unwanted iron oxide (scale), allowing it to run off. Borax is also used mixed with water as a flux when soldering jewelry metals such as gold or silver. It allows the molten solder to flow evenly over the joint in question. Borax is also a good flux for 'pre-tinning' tungsten with zinc - making the tungsten soft-solderable.

D.Small-scale mining

Borax is replacing mercury as the preferred method for extracting gold in small-scale mining facilities. The method is called the borax methodand is used in the Philippines.

Packaging Details

            -Packed in plastic-lined plastic woven bags of 25 Kg net each, 25MT per 20FCL. 
            -Packed in plastic-lined plastic woven jumbo bags of 1MT net each, 25MT per 20FCL. 
            -According to the customer's requirement

Delivery Time

            Whthin 5-7 days after order confirmation

A, Do you supply FREE sample?

FREE sample is ok, but the sample delivery fee is on your side.

B, What's your payment term?

1, T/T, 30% prepaid, the balance 70% will be paid when the products are ready!

2, L/C

3, D/P

C, What's your delivery time?

Generally it is 3-7 working days after receiving your deposit.

D, How long have you been involved in this chemical field?

Since 2003. So we enjoy much experience, can take care your cargo very well!

E, Can you supply relative document?

Of course, we can supply MSDS, COA, CO, commerical invoice, packing list, B/L...

If your markets have any special requirements, pls just let me know freely!

F, Do you accept third party inspecition?

Yes, we do!

    Shandong Baovi Energy Technology co.,ltd is located in Jinan city, Shandong province, was founded in 2003, and it is a raw material supplier for the global organic chemical industry.

    Products include solvents, antifreeze, anticorrosion, pigment, chemicals intermediates, etc., widely used in agriculture, food sanitation and other fields.

  If you are interested in our products, please do not hesitate to contact us.