Good Price China Supplier Borax Pentahydrate White Powder Borax

• Customization: Available
• CAS No.: 1303-96-4
• Formula: Na2b4o7.10H2O
• Model NO.: borax
• EINECS: 603-411-9
• Classification: Borax
• Appearance: Crystal
• Grade Standard: Electron Grade
• Acid Strength: Strong Acid
• Kind: Inorganic Acid
• Quality: Tech Grade
• Packaging: Paper Bag
• Element: Monobasic Acid
• Oxidation: Oxidizing Acid
• Volatility: Volatile Acid
• Stability: Labile Acid
• Shelf Life: 2 Years
• Storage: Cool Dry Place
• Transport Package: 25kg/Bag
• Specification: Industrial Grade
• Trademark: boric acid
• Origin: China
• HS Code: 2708100000
• Production Capacity: 50000ton

Product Description

 

Borax, generally written as Na2B4O7•10H2O, is a very important boron-containing mineral and boron compound. Usually a white powder containing colorless crystals, odorless and salty. The specific gravity is 1.73. All crystal water is lost at 350-400°C. Soluble in water and glycerol, slightly soluble in alcohol. The aqueous solution is strongly alkaline.

1.Sodium Borate has been mainly used in the manufacturing high quality glass, optical glass, glaze of pottery and porcelain, glaze of enamel, detergent, bleaching agent, cleaning agents, flame retardant, rust inhibitor and caking agent. 2.It could be also used as the carrier of the lubricant used in metal wiredrawing, the stabilizer of refractory material and skeleton former, the coated fluxing agent in metallurgy, the retarder of cement and concrete, the buffer of pH value in water system and emulsifier of paraffin.

 

 

Detailed Photos

 

ITEM	Decahydrate	Pentahydrate	Anhydrous
Appearance	White Powder
Sodium Borate Assay, %≥	99.5	99.5	99.5
	(Na2B4O7.10H2O)	(Na2B4O7.5H2O)	(Na2B4O7.H2O)
B2O3, %≥	37-38	48.5	68
NaO2, %≥	16-17	21.5	30
Sodium carponate (Na2CO3) % ≤	0.1	0.1	0.1
Insoluble matter in water % ≤	0.04	0.04	0.04
Sodium Suitate (Na2SO4) % ≤	0.2	0.2	0.2
Sodium Chloride (NaCl) % ≤	0.03	0.03	0.03
Iron (Fe) % ≤	0.002	0.002	0.002

 

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