Industrial grade borax Na2B4O7(CAS RN : 1330-43-4)

  Product Description Sodium Borate Executive standard: Q/YTY005-2011 Chemical name: Sodium tetraborate CAS RN: 1330-43-4 1. Physical and chemical properties: 1.1 Molecular formula: Na2B4O7 1.2 Molecular weight: 201.22 1.3 Structure formula:   1.4 Melting point: 742.5℃(for orthorhombic crystal A); 664℃(for orthorhombic crystal B) 1.5 Density: 2.28 (for orthorhombic crystal A); 2.75(for orthorhombic crystal B) 1.6 Properties: Its hygroscopicity is extremely strong. Dissolved in water, but slowly dissolved in methanol to form a concentration of 13-16% solution. 2. Technical indexes:

<Span style="line-height: 24px; font-family: 'Times New Roman'; color: #000000; font-weight: normal; font-style: normal; font-size: 12pt;">Item	1st grade	2nd grade
Sodium Borate content,%	≥98.0	≥96.0
Diboron trioxide,%	66-68	66-68

3. Application: 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. 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. 4. Safety instructions: Toxic by ingestion, inhalation, eye and skin contact. Eye and skin contact can cause inflammation. Mouse, oral: LD50=1060mg/kg; rat, oral: LD50=1200mg/kg. Rubber gloves, respirator and eye protection must be used during operations in case of skin contact, eyes contact..     www.tanyunchem.com

Contact us if you need more details on 1330-43-4. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Na2b4o7、Borax. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Boron product series