Borax / Sodium tetraborate decahydrate 99% 99.9%

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Price:RUB 166.66 - RUB 318.17
Price in USD:Details


Product Overview


Product Description

 image_arrow Executive standard: Q/YTY005-2011

image_arrow Chemical name: Sodium tetraborate

image_arrow CAS RN: 1330-43-4

image_arrow 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.

image_arrow 2. Technical indexes:


1st grade

2nd grade

Sodium Borate content,%



Diboron trioxide,%



image_arrow 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.

image_arrow 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..

Packaging & Shipping

 image_arrow 5. Packing: Woven bag lined with plastic bag, net weight 25kg /bag.

image_arrow 6. Storage: Store at cool, dry and ventilate. The shelf life is 12 months after manufacturer date. It is still available if retest result is qualified after expire date Sodium borate is a stable crystal under normal condition. If it is moistened it will react with water and release microcalorimetry.When keep in humidity condition or temperature dramatic changed environment , it may caking. Cautions in storage should keep away from the dramatic change environment, and ensure intact packing.

image_arrow7. Transportation: Avoid water, exposure and violent collision .Do not transport with strong oxidizers.

Company Information

   Established in 1971 , Now We are One of biggest professional chemical materials


manufacturers and suppliers.



Our certificate                                                                            


                       We have passed GJB9001B 2009(National Military Standard) quality management 


system certification , which is stricter than IS09001 international quality certificate , 


So we are sure that our product is with high quality.



The customers visit our factory                                               





Our Services


Why choose us                                                                         

1.Military production unit with high quality

2. Professional Service (Firstly reply, Fastly delivery)

3. Accept small order

4.Over forty years technique deposition


In addition:The company could research and develop the new products according to the special demand of our clients.


More detail please email us or reach me on my Skype ID:Johor Zheng


1.Why  choose Tanyun  Chemical company?

We are the manufacturer with more than 40 years history.

2.what is ur payment term?

T/T in advance

3.Delivery time?

Soon after payment

4.Are u manufacturer?

Yes,we are manufacturer


                      welcome to inquiry ! 

0.0175 s.