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三フッ化ホウ素

三フッ化ホウ素 化学構造式
7637-07-2
CAS番号.
7637-07-2
化学名:
三フッ化ホウ素
别名:
三フッ化ホウ素
英語化学名:
Boron trifluoride
英語别名:
BF3;anca1040;Bortrifluorid;BORON FLUORIDE;fluoruredebore;Trifluoroboron;BoronTrifuoride;trifluoro-boran;Trifluoroborane;Fluorure de bore
CBNumber:
CB3238105
化学式:
BF3
分子量:
67.81
MOL File:
7637-07-2.mol

三フッ化ホウ素 物理性質

融点 :
−127 °C(lit.)
沸点 :
−100 °C(lit.)
比重(密度) :
0.87 g/mL at 20 °C
蒸気密度:
2.38 (21 °C, vs air)
蒸気圧:
>1 mmHg at 20 °C
屈折率 :
n20/D 1.38
闪点 :
4°C
貯蔵温度 :
2-8°C
外見 :
Liquid
色:
Colorless
臭い (Odor):
Pungent odor detectable at 1.5 ppm
水溶解度 :
MAY DECOMPOSE
Sensitive :
Moisture Sensitive
Merck :
14,1349
CAS データベース:
7637-07-2(CAS DataBase Reference)
NISTの化学物質情報:
Borane, trifluoro-(7637-07-2)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  T+,C,T,F
Rフレーズ  14-26-35-39/23/24/25-24/25-11-67-41-10-37-22
Sフレーズ  9-26-28-36/37/39-45-28A-16
RIDADR  UN 3286 3/PG 2
WGK Germany  3
RTECS 番号 ED2275000
21
Hazard Note  Corrosive/Toxic
TSCA  Yes
国連危険物分類  2.3
有毒物質データの 7637-07-2(Hazardous Substances Data)
毒性 LC50 inhal (rat) 387 ppm (1070 mg/m3; 1 h)
PEL (OSHA) 1 ppm (3 mg/m3; ceiling)
TLV (ACGIH) 1 ppm (3 mg/m3; ceiling)
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H314 重篤な皮膚の薬傷?眼の損傷 皮膚腐食性/刺激性 1A, B, C 危険 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
H330 吸入すると生命に危険 急性毒性、吸入 1, 2 危険 P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
注意書き
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P302+P352 皮膚に付着した場合:多量の水と石鹸で洗うこと。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P309 暴露したとき、または気分が悪い時:
P310 ただちに医師に連絡すること。
P403 換気の良い場所で保管すること。

三フッ化ホウ素 価格

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入

三フッ化ホウ素 化学特性,用途語,生産方法

用途

触媒、半導体製造用(ドーピング用)、光ファイバー製造用

説明

Dry boron trifluoride is used with mild steel, copper, copper–zinc and copper–silicon alloys, and nickel. Moist gas is corrosive to most metallic materials and some plastics. Therefore, Kel-F? and Teflon? are the preferred gasketing materials. Mercury-containing manometers should not be used since boron trifluoride is soluble in mercury. It decomposes in hot water, yielding hydrogen fluoride. Boron trifluoride is widely used as a catalyst for organic synthesis reactions.

化学的特性

Boron trifl uoride is a colorless gas with an acrid suffocating odor. It forms thick acidic fumes in moist air. Dry boron trifl uoride is used with mild steel, copper, copper-zinc and copper-silicon alloys, and nickel. Moist gas is corrosive to most metallic materials and some plastics. Therefore, Kel-F? and Tefl on? are the preferred gasketing materials. Mercury containing manometers should not be used because boron trifl uoride is soluble in mercury. It decomposes in hot water yielding hydrogen fl uoride

化学的特性

Boron trifluoride is a nonflammable, colorless gas. Pungent, suffocating odor. Forms dense white fumes in moist air. Shipped as a nonliquefied compressed gas.

使用

To protect molten magnesium and its alloys from oxidation; as a flux for soldering magnesium; as a fumigant; in ionization chambers for the detection of weak neutrons. By far the largest application of boron trifluoride is in catalysis with and without promoting agents.

一般的な説明

Boron trifluoride is a colorless gas with a pungent odor. Boron trifluoride is toxic by inhalation. Boron trifluoride is soluble in water and slowly hydrolyzed by cold water to give off hydrofluoric acid, a corrosive material. Its vapors are heavier than air. Prolonged exposure of the containers to fire or heat may result in their violent rupturing and rocketing.

空気と水の反応

Fumes in air. Soluble in water and slowly hydrolyzed by cold water to give hydrofluoric acid. Reacts more rapidly with hot water.

反応プロフィール

Boron trifluoride is a colorless, strongly irritating, toxic gas. Upon contact with water, steam or when heated to decomposition, Boron trifluoride will produce toxic fluoride fumes. Incompatible with alkyl nitrates, calcium oxide. Reaction with alkali metals or alkaline earth metals (except magnesium) will cause incandescence [Bretherick, 5th ed., 1995, p. 65].

危険性

Toxic by inhalation, corrosive to skin and tissue. Lower respiratory tract irritant, and pneu- monitis.

健康ハザード

Boron trifluoride (and organic complexes such as BF3-etherate) are extremel corrosive substances that are destructive to all tissues of the body. Upon contact with moisture in the skin and other tissues, these compounds react to form hydrofluoric acid and fluoroboric acid, which cause severe burns. Boron trifluoride gas is extremely irritating to the skin, eyes, and mucous membranes. Inhalation of boron trifluoride can cause severe irritation and burning of the respiratory tract, difficult breathing, and possibly respiratory failure and death. Exposure of the eyes to BF can cause severe burns and blindness. This compound is not considered to have adequate warning properties. Boron trifluoride has not been found to be carcinogenic or to show reproductive or developmental toxicity in humans. Chronic exposure to boron trifluoride gas can cause respiratory irritation and dama

健康ハザード

Highly toxic; may cause death or permanent injury after very short exposure to small quantities. Substance is irritating to the eyes, the skin, and the respiratory tract.

健康ハザード

Exposures to boron trifl uoride cause irritating effects, painful burns, lesions, loss of vision, stinging of the skin, irritation of the upper respiratory tract, and cough. Higher concentrations may cause infl ammation and congestion of the lungs. Occupational exposures to high concentrations of boron trifl uoride result in burns to the mucous membranes. Even at low concentrations (as low as 50 ppm), boron trifl uoride causes cardiac collapse, pulmonary edema, and chemical pneumonitis.

火災危険

When heated to decomposition or upon contact with water or steam, Boron trifluoride will produce toxic and corrosive fumes of fluorine containing compounds. Decomposes upon heating or on contact with moist air, forming toxic and corrosive fumes of boric acid and hydrofluoric acid. Reacts with alkalis and fumes in moist air, producing particulates which reduce visibility. Reacts with alkali metals, alkaline earth metals (except magnesium), alkyl nitrates, and calcium oxide. Boron trifluoride hydrolyzes in moist air to form boric acid, hydrofluoric acid, and fluoboric acid.

火災危険

Boron trifluoride gas is noncombustible. Water should not be used to extinguish any fire in which boron trifluoride is present. Dry chemical powder should be used for fires involving organic complexes of boron trifluoride.

燃焼性と爆発性

Boron trifluoride gas is noncombustible. Water should not be used to extinguish any fire in which boron trifluoride is present. Dry chemical powder should be used for fires involving organic complexes of boron trifluoride.

職業ばく露

Boron trifluoride is a highly reactive chemical used primarily as a catalyst in chemical synthesis. It is stored and transported as a gas, but can be reacted with a variety of materials to form both liquid and solid compounds. The magnesium industry utilizes the fireretardant and antioxidant properties of boron trifluoride in casing and heat treating. Nuclear applications of boron trifluoride include neutron detector instruments; boron-10 enrichment and the production of neutroabsorbing salts for molten-salt breeder reactors.

貯蔵

All work with boron trifluoride should be conducted in a fume hood to prevent exposure by inhalation, and splash goggles and impermeable gloves should be worn to prevent eye and skin contact. Cylinders of boron trifluoride should be stored in locations appropriate for compressed gas storage and separated from alkali metals, alkaline earth metals, and other incompatible substances. Solutions of boron trifluoride should be stored in tightly sealed containers under an inert atmosphere in secondary containers.

輸送方法

UN1008 Boron trifluoride, Hazard class: 2.3; Labels: 2.3—Poisonous gas, 8—Corrosive material, Inhalation Hazard Zone B. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.

純化方法

The usual impurities-bromine, BF5, HF and non-volatile fluorides-are readily separated by distillation. Brown and Johannesen [J Am Chem Soc 72 2934 1950] passed BF3 into benzonitrile at 0o until the latter was saturated. Evacuation to 10-5mm then removed all traces of SiF4 and other gaseous impurities. [A small amount of the BF3-benzonitrile addition compound sublimes and is collected in a U-tube cooled to -80o]. The pressure is raised to 20mm by admitting dry air, and the flask containing the BF3 addition compound is warmed with hot water. The BF3 that evolves is passed through a -80o trap (to condense any benzonitrile) into a tube cooled in liquid air. The addition compound with anisole can also be used. BF3 can be dried by passing it through H2SO4 saturated with boric oxide. It fumes in moist air. [It is commercially available as a 1.3M solution in MeOH or PrOH.] [Booth & Wilson Inorg Synth I 21 1939, Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I pp 219-222 1963.] TOXIC.

不和合性

Boron trifluoride reacts with polymerized unsaturated compounds. Decomposes on contact with water, moist air, and other forms of moisture, forming toxic and corrosive hydrogen fluoride, fluoroboric acid, and boric acid. Reacts violently with alkali and alkaline earth metals (except magnesium); metals, such as sodium, potassium, and calcium oxide, and with alkyl nitrates. Attacks many metals in presence of water.

廃棄物の処理

Return refillable compressed gas cylinders to supplier. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. Chemical reaction with water to form boric acid, and fluoroboric acid. The fluoroboric acid is reacted with limestone, forming boric acid and calcium fluoride. The boric acid may be discharged into a sanitary sewer system while the calcium fluoride may be recovered or landfilled. Protect cylinder and labels from physical damage.

予防処置

Exposures to boron trifl uoride in occupational work areas cause irritating effects, painful burns, lesions, and loss of vision. Workers with potential exposure to boron trifl uoride should not wear contact lenses. Prompt medical attention is mandatory in all cases of overexposure to boron trifl uoride and the rescue personnel should be equipped with proper protectives. Occupational workers should handle/use boron trifl uoride only in well-ventilated areas. The valve protection caps must remain in place. Workers should not drag, slide, or roll the cylinders, and use a suitable hand truck for cylinder movement. Compressed gas cylinders shall not be refi lled without the express written permission of the owner. Boron trifl uoride is listed as an extremely hazardous substance (EHS). The cylinder should not be heated by any means to increase the discharge rate of the product from the cylinder. The cylinder of boron trifl uoride should be kept stored in a cool, dry, well-ventilated area of non-combustible construction away from heavily traffi cked areas and emergency exits

三フッ化ホウ素 上流と下流の製品情報

原材料

準備製品


三フッ化ホウ素 生産企業

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7637-07-2(三フッ化ホウ素)キーワード:


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