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Your current location:Home » Product supply » Manufacturer Diboron trioxide CAS NO.1303-86-2
Manufacturer Diboron trioxide CAS NO.1303-86-2
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Product: Views:199Manufacturer Diboron trioxide CAS NO.1303-86-2 
Unit price: 3.00元/Kilogram
MOQ: 1 Kilogram
Quantity: 999999 Kilogram
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2016-09-13 09:55

Product Details


  • Diboron trioxide
  • Boric oxide
  • Boron oxide

Quick Details

  • ProName: Manufacturer Diboron trioxide
  • CasNo: 1303-86-2
  • Molecular Formula: B2O3
  • Appearance: White loose powder
  • Application: It has been used as the fusion agent i...
  • DeliveryTime: soon after payment
  • PackAge: 25kg/bag
  • Port: Dalian,Tianjin,Qingdao,Shanghai
  • ProductionCapacity: 1 Metric Ton/Day
  • Purity: 98%
  • Storage: Store at cool, dry and ventilate. Shel...
  • Transportation: air or ship
  • LimitNum: 1 Kilogram
  • Grade: Industrial Grade,Food Grade,Pharma Gra...



2.Military factory with more than 40 years history

3.High quality products with GJB standard

4.24 hours effective service

5.MOQ can be 0.01kg

6.We have warehouse in Dalian,Tianjin,Shanghai and so onr.confirm the delivey date


Diboron trioxide

Executive standard: Q/TY·J08.04-2015

English another name: Boric oxide, Boron oxide, Boric anhydride

CAS RN: 1303-86-2

1. Physical and chemical properties:

1.1 Molecular formula: B2O3

1.2 Molecular weight: 69.62

1.3 Structure formula:

1.4 Melting point: 450℃

1.5 Boiling point:1860℃

1.6 Density: 1.085 g/mL (Amorphous)

1.7 Solubility: Dissolved in acid, ethanol, hot water, and slightly dissolved in cold water.

1.8 Properties: Colorless crystal powder. Be greasy in the surface. With strong hygroscopicity, it is easy to be hydrolysised to form boric acid. In high temperature, it can be reduced by alkali metal or magnesium to monocrystal boron. It can be completely mixed with the oxides of metal, copper, sliver, aluminum, tin, arsenic.

2. Technical indexes:


1st grade

2nd grade

Boron oxide, %(m/m)




White loose powder

3. Uses: It has been used as the fusion agent in decomposition of silicates, the dopant of semiconductor material, the additives of heatproof glassware and paint refractory. It has been used in production of alloy steel in metallurgical industry. In addition, it’s used as the catalyst of organic synthesis, the additive of lubricant used in high temperature, and can be also used to environmental protection.

4. Safety instructions: Toxic by ingestion, inhalation, eye and skin contact. Eye and skin contact can cause inflammation. The maximum allowable concentration of the working place is 15 mg/m3 (OSHA). Operation must be installed with rubber gloves, a respirator and eye protection by wearing protective clothing.

5. Package: Woven bag with two-layer plastic bag, 25 kg net each.

6. Storage: Store at cool, dry and ventilate. Shelf life of 12 months, if expire, still used if up to standard through retest. Used in a dry place. With high humidity, it may crystallize and caking. Stay away from the variable environment to ensure complete packaging.

7. Transportation:Avoid rain, sunlight and crash. Don't mix with strong oxidizer.

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

Wenwen Dai(Trade Manager) or

Phone: +86 18840650866

What's up: +86 18840650866

Email: tychems(at) or hyb(at)


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