free sample powder nab4o7.10h2o borax manufacturer price

Anhydrous borax, also known as sodium tetraborate, is an α orthorhombic crystal with a melting point of 742.5°C. Density 2.28, β orthorhombic crystal, melting point 664°C. Density 2.75, white crystal or colorless glass crystal, strong hygroscopicity, soluble in water, glycerin, slowly soluble in methanol, can form a solution with a concentration of 13-16%, the aqueous solution is weakly alkaline, insoluble in alcohol. Borax is heated to 350-400°C to obtain anhydrous borax. Put in the air, absorb moisture and become borax decahydrate or borax pentahydrate

A. Household items

Borax is used in a variety of household laundry and cleaning products. Some tooth bleaching formulas also contain borax.

B. buffer zone

Sodium borate is used in biochemical and chemical laboratories to prepare buffers such as those used in DNA gel electrophoresis such as TBE in coating procedures or the newer SB buffer or BBS (Borate Buffered Saline). Borate buffer (typically pH 8) is also used as a preferential equilibration solution in DMP-based crosslinking reactions.

C. Flux

A mixture of borax and ammonium chloride is used as a flux when welding steel. It lowers the melting point of unwanted iron oxide (scale) allowing it to drain away. Borax can also be mixed with water and used as a flux when soldering jewelry metals such as gold or silver. It allows molten solder to flow evenly over the associated joint. Borax is also a good flux to "pre-tin" the tungsten with zinc, making the tungsten solderable.

packaging details

-Packed in plastic-lined woven bags, net weight 25Kg per bag, 25MT per 20FCL.
-Packed in woven jumbo bags lined with plastic, with a net weight of 1 ton per bag and 25 tons per 20FCL.
-According to customer's request

delivery time

5-7 days after order confirmation