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25 Kilogram |
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12179-04-3 Sodium tetraborate pentahydrate NEOBOR(R)
1.Pentahydrate Borax (Na2B4O7.5H2O) in the glass industry: for the manufacture of optical glass and heat corrosion of the glass, the glass thermal expansion can improve, increase temperature, pressure resistance.
2.Pentahydrate Borax (Na2B4O7.5H2O) in the enamel industry: as a glaze, applied to the metal surface, solid and durable resistance, so heat-resistant enamel has excellent wear resistance, enhance shine, improve whiteness.
3.Pentahydrate Borax (Na2B4O7.5H2O) in the ceramic industry: for the manufacture of glazes, to good effect.
4.Pentahydrate Borax (Na2B4O7.5H2O) In agriculture: as herbicides and soil fungicides, fertilizer additives
5.Pentahydrate Borax (Na2B4O7.5H2O) in the mining industry and metallurgical industry: used as antifreeze, anticoagulants.
6.Pentahydrate Borax (Na2B4O7.5H2O) In non-ferrous metals industry: used as electrolyte additives and non-ferrous metal welding agent.
7.Pentahydrate Borax (Na2B4O7.5H2O) in cosmetics: for the water softener.
Name |
Sodium tetraborate pentahydrate |
Synonyms |
borates,;borates,tetra,sodiumsalt,pentahydrate;borates,tetra,sodiumsalts; borates,tetra,sodiumsalts(pentahydra; boricacid(h2b4o7),disodiumsalt,pentahydrate;Boricacid,disodiumsalt,pentahydrate; boronsodiumoxide(b4na2o7),;boronsodiumoxide(b4na2o7),pentahydrate |
CAS |
12179-04-3 |
Molecular formula |
B4H10Na2O12 |
Molecular weight |
291.3 |
Density |
1.815 |
Application |
As raw materials and herbicides for boron compounds, it is also used in stained glass, enamel, soil disinfection, etc. |
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 electrophoresisof 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.
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