First, the product name
Industrial boron trifluoride high purity boron trifluoride
Second, boron trifluoride chemical formula
BF3
Third, the relative molecular mass of boron trifluoride
Industrial boron trifluoride High purity boron trifluoride Relative molecular mass: 67.805 (according to 2001 international relative atomic mass)
Fourth, industrial boron trifluoride high purity boron trifluoride index
Industrial boron trifluoride high purity boron trifluoride GB GB/T 5828-2006
Technical requirements for products prepared by direct reaction method:
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6 ＜
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2
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20
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Oxygen + argon (O2+Ar) content (volume fraction)/10-6 ＜
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1
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10
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Carbon dioxide (CO2) content (volume fraction)/10-6 ＜
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1
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5
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Carbon tetrafluoride (CF4) content (volume fraction)/10-6 <
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1
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5
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Silicon tetrafluoride (SiF4) content (volume fraction)/10-6 <
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5
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10
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Total impurity content (volume fraction)/10-6 ≤
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10
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50
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Granule
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Supply and demand sides agreed
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Supply and demand sides agreed
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Technical requirements for products prepared by thermal decomposition:
Project |
index
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Boron trifluoride (BF3) purity (molar fraction)/10-2 ≥
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99.999
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Nitrogen + oxygen (N2+O2) content (molar fraction)/10-6 <
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10
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Carbon dioxide (CO2) content (molar fraction)/10-6 <
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10
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Sulfur dioxide (SO2) content (molar fraction)/10-6 <
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10
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Silicon tetrafluoride (SiF4) content (molar fraction)/10-6 <
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20
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Sulfate (SO42-) content (molar fraction)/10-6 <
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8
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Total impurity content (molar fraction)/10-6 ≤
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20
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Granule
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Supply and demand sides agreed
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V. Purity
99.2%, 99.5%, 99.8%, 99.995%, 99.999%, 99.998%, 99.9999%
Sixth, packaging specifications
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Serial number
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product
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State (meteorological or liquid phase)
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Container (L or m3)
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Working pressure (MPa)
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Container height (excluding bottle valve, bottle cap) mm
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Empty weight of container (excluding bottle valve, bottle cap) kg
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Filling capacity (pressure or weight) MPa or kg
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Supply mode
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Brand
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1
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Boron trifluoride
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Gaseous state
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4L（Φ140）
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15MPa
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395
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7.1
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10-15MPa
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Available in cylinder or aluminum alloy cylinders
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Runaway
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2
|
Boron trifluoride
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Gaseous state
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8L（Φ140）
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15MPa
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680
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11.5
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10-15MPa
|
|
3
|
Boron trifluoride
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Gaseous state
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10L（Φ159）
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15MPa
|
671
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13.5
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10-15MPa
|
|
4
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Boron trifluoride
|
Gaseous state
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15L（Φ159）
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15MPa
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956
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19
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10-15MPa
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|
5
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Boron trifluoride
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Gaseous state
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20L（Φ219）
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15MPa
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715
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23
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10-15MPa
|
|
6
|
Boron trifluoride
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Gaseous state
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40L（Φ219）
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15MPa
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1315
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48
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10-15MPa
|
|
7
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Boron trifluoride
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Gaseous state
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50L（Φ219）
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15MPa
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1510
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66
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10-15MPa
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|
8
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Remarks
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Due to differences in container design pressure, etc., the above data is slightly different, please be aware. Please contact 40009 63336 or 18563963366 for details.
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Seven, boron trifluoride application
The English name for boron trifluoride is Boron trifluoride. Also known as boron fluoride. CAS number 7637-07-2, molecular weight 67.81. It is an inorganic compound, a colorless gas, has a suffocating property, and is immediately hydrolyzed by moisture in the air.
Produces highly toxic fluoride fumes when decomposed. The fluoroborate ion is a non-coordinating anion, and a liquid boron trifluoride etherate is often used as a source of boron trifluoride in the laboratory. It can be prepared by reacting boron trioxide or borate with hydrogen fluoride. High-energy fuel used to make rockets.
It reacts with water to form fluoroboric acid HBF4 and simultaneously forms boric acid. Soluble in cold water. It is a colorless, toxic and corrosive gas at normal temperature and pressure. Wet boron trifluoride can corrode many metals. The maximum allowable concentration is 1 mg/m3. It does not generally react with metal elements, but can form addition compounds or alkyl metal compounds with many substances.
It is prepared by directly combining boron with fluorine or by heating a mixture of boron and carbon in a fluorine gas stream. Industrially, a mixture of borax and fluorite is used to react with concentrated sulfuric acid to obtain boron trifluoride. Boron trifluoride as a Lewis acid is often used as a catalyst in many organic synthesis reactions such as condensation, ion polymerization, and isomerization. Boron isotope separation of raw materials. Boron trifluoride is also a raw material for the preparation of tetrahydroborate.
Very reactive, explosive decomposition in the presence of water. It reacts violently with metals, organic substances, etc., and can also corrode glass when it is cold. Highly toxic. Both hydrogen fluoride and boron are both toxic.
1. Mainly used as an organic reaction catalyst, such as esterification, alkylation, polymerization, isomerization, sulfonation, nitration, and the like. Antioxidant when casting magnesium and alloys. It is a main raw material for preparing boron halide, elemental boron, borane, sodium borohydride and the like.
2. In many organic reactions and petroleum products, as a catalyst for the condensation reaction, BF3 and compounds are used as curing agents in epoxy resins. Can be used as a raw material for the preparation of optical fiber preforms.
3. Mainly used for ion implantation and doping of semiconductor devices and integrated circuit production.
4. Antioxidant when casting magnesium and alloy.
Eight, matters needing attention
Route of entry: inhalation.
Health hazards: acute poisoning: the main symptoms are dry cough, shortness of breath, chest tightness, chest tightness; some patients have nausea, loss of appetite, runny nose; when the amount of inhalation is high, there are tremors and convulsions, can also cause pneumonia. Skin contact can cause burns.
Acute toxicity: LC501180mg/m3, 4 hours (rat inhalation)
Subacute and chronic toxicity: subacute and chronic toxicity tests in animals, mainly causing respiratory irritation, pneumonia and tubular degeneration; increased fluoride in urine; dental fluorosis can occur.
Hazardous characteristics: High chemical reactivity, explosive decomposition in the presence of water. It is possible to form explosive chloroacetylene with copper and its alloys. It is rapidly hydrolyzed to fluoroboric acid and boric acid when exposed to moisture in the air, producing white smoke. It is very corrosive and can corrode glass when it is cold.
Combustion (decomposition) products: hydrogen fluoride, boron oxide.
Incompatible materials: water, amines, alcohols, alkalis.
Disposal methods: Dispose of in accordance with national and local regulations. Or contact the manufacturer or manufacturer to determine the method of disposal.
Transportation precautions: The helmet on the cylinder must be worn when transporting in a cylinder. The cylinders should be placed flat and the bottles should be in the same direction. They should not cross; the height should not exceed the fence of the vehicle and be secured with triangular wooden mats to prevent rolling. It is strictly forbidden to mix and transport with alcohols, alkalis, food chemicals, etc. Summer should be transported in the morning and evening to prevent sun exposure. When transporting by road, it is necessary to follow the prescribed route, and it is forbidden to stay in residential areas and densely populated areas. It is forbidden to slip when transporting by rail.
