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水素化リチウムアルミニウム (粉末)

水素化リチウムアルミニウム (粉末) 化学構造式
16853-85-3
CAS番号.
16853-85-3
化学名:
水素化リチウムアルミニウム (粉末)
别名:
水素化リチウムアルミニウム (8%テトラヒドロフラン溶液, 約2mol/L);水素化リチウムアルミニウム (粉末);水素化リチウムアルミニウム;水素化アルミニウムリチウム;テトラヒドリドアルミン酸リチウム;テトラヒドロアルミン酸リチウム;水素化リチウムアルミニウム(粒状);水素化リチウムアルミニウム,テトラヒドロフラン溶液;テトラヒドリドアルミネートリチウム;水素化リチウムアルミニウム (10%テトラヒドロフラン溶液, 約2.5mol/L);水素化リチウムアルミニウム 溶液;水素化リチウムアルミニウム, powder, 95%;水素化リチウムアルミニウム 2.2M (10wt% ±1wt%) in 2-methyltetrahydrofuran
英語化学名:
Lithium Aluminum Hydride
英語别名:
LAH;LiAlH4;ithium aL;LITHIUM ALANATE;uminium hydride;Lithium Aluminium Hy;Lithium aluminohydride;LithiuM AluMiniuM Hydri;LITHIUMALUHYDRID S 250G;LithiumAluminnumHydride
CBNumber:
CB7318252
化学式:
LiAlH4
分子量:
37.954298
MOL File:
16853-85-3.mol

水素化リチウムアルミニウム (粉末) 物理性質

融点 :
125 °C (dec.)(lit.)
沸点 :
0°C
比重(密度) :
0.97 g/mL at 20 °C
闪点 :
99 °F
貯蔵温度 :
2-8°C
外見 :
tablets (~0.5 g each)
比重:
0.917
色:
White to light gray
臭い (Odor):
Odorless solid
水溶解度 :
Reacts
Sensitive :
Air & Moisture Sensitive
Hydrolytic Sensitivity:
8: reacts rapidly with moisture, water, protic solvents
Merck :
14,350
暴露限界値:
TLV-TWA 2 mg(Al)/m3 (ACGIH).
安定性::
Stable. Reacts violently with water, liberating hydrogen. Incompatible with strong oxidizing agents, alcohols, acids.
CAS データベース:
16853-85-3(CAS DataBase Reference)
NISTの化学物質情報:
Lithium tetrahydroaluminate(16853-85-3)
EPAの化学物質情報:
Lithium aluminum hydride (16853-85-3)
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  F,C,Xi,Xn,F+,T
Rフレーズ  15-34-14/15-11-36/37-19-40-10-67-66-22-12-35-37-65-48/20-63-36/38-61-60
Sフレーズ  43-7/8-6A-45-43B-36/37/39-33-26-16-24/25-27-29-62-53
RIDADR  UN 3399 4.3/PG 1
WGK Germany  2
RTECS 番号 BD0100000
10-21
TSCA  Yes
HSコード  2850 00 20
国連危険物分類  4.3
容器等級  I
有毒物質データの 16853-85-3(Hazardous Substances Data)
毒性 TLV-TWA (ACGIH) 2 mg (Al)/m3
消防法 危-3-II
化審法 (1)-16
安衛法 57-2
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
H225 引火性の高い液体および蒸気 引火性液体 2 危険 P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H226 引火性の液体および蒸気 引火性液体 3 警告
H228 可燃性固体 可燃性固体 1
2
危険
警告
P210, P240,P241, P280, P370+P378
H260 水に触れると自然発火するおそれのある可燃性 /引火性ガスを発生 水反応可燃性化学品 1 危険 P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501
H301 飲み込むと有毒 急性毒性、経口 3 危険 P264, P270, P301+P310, P321, P330,P405, P501
H302 飲み込むと有害 急性毒性、経口 4 警告 P264, P270, P301+P312, P330, P501
H304 飲み込んで気道に侵入すると生命に危険のおそ れ 吸引性呼吸器有害性 1 危険
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
H315 皮膚刺激 皮膚腐食性/刺激性 2 警告 P264, P280, P302+P352, P321,P332+P313, P362
H319 強い眼刺激 眼に対する重篤な損傷性/眼刺激 性 2A 警告 P264, P280, P305+P351+P338,P337+P313P
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
H333 吸入すると有害のおそれ 急性毒性、吸入 5 P304+P312
H335 呼吸器への刺激のおそれ 特定標的臓器毒性、単回暴露; 気道刺激性 3 警告
H336 眠気やめまいのおそれ 特定標的臓器毒性、単回暴露; 麻酔作用 3 警告 P261, P271, P304+P340, P312,P403+P233, P405, P501
H351 発がんのおそれの疑い 発がん性 2 警告 P201, P202, P281, P308+P313, P405,P501
H361 生殖能または胎児への悪影響のおそれの疑い 生殖毒性 2 警告 P201, P202, P281, P308+P313, P405,P501
H371 臓器の障害のおそれ 特定標的臓器有害性、単回暴露 2 警告 P260, P264, P270, P309+P311, P405,P501
H372 長期にわたる、または反復暴露により臓器の障 害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P314, P501
H373 長期にわたる、または反復暴露により臓器の障 害のおそれ 特定標的臓器有害性、単回暴露 2 警告 P260, P314, P501
注意書き
P201 使用前に取扱説明書を入手すること。
P210 熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
P223 激しい反応と火災の発生の危険があるため、水と接 触させないこと。
P231+P232 湿気を遮断し、不活性ガス下で取り扱うこと。
P261 粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。
P262 眼、皮膚、衣類につけないこと。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P308 暴露または暴露の懸念がある場合:
P308+P313 暴露または暴露の懸念がある場合:医師の診断/手当てを 受けること。
P337+P313 眼の刺激が続く場合:医師の診断/手当てを受けること。
P370+P378 火災の場合:消火に...を使用すること。
P402+P404 乾燥した場所または密閉容器に保管するこ と。
P403+P235 換気の良い場所で保管すること。涼しいところに 置くこと。
P422 内容物を...中で保管すること。

水素化リチウムアルミニウム (粉末) 価格 もっと(43)

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
富士フイルム和光純薬株式会社(wako) W01W0112-0109 水素化リチウムアルミニウム 80.0+%
Lithium Aluminium Hydride 80.0+%
16853-85-3 5g ¥3950 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01W0112-0109 水素化リチウムアルミニウム 80.0+%
Lithium Aluminium Hydride 80.0+%
16853-85-3 25g ¥5500 2018-12-26 購入
東京化成工業 L0170 水素化リチウムアルミニウム (10%テトラヒドロフラン溶液, 約2.5mol/L)
Lithium Aluminum Hydride (10% in Tetrahydrofuran, ca. 2.5mol/L)
16853-85-3 100mL ¥17900 2018-12-04 購入
東京化成工業 L0203 水素化リチウムアルミニウム (粉末) >95.0%(T)
Lithium Aluminum Hydride (Powder) >95.0%(T)
16853-85-3 25g ¥8000 2018-12-04 購入
関東化学株式会社(KANTO) 24115-35 水素化リチウムアルミニウム >92.0%(T)
Lithium aluminium hydride >92.0%(T)
16853-85-3 25g ¥5500 2018-12-13 購入

水素化リチウムアルミニウム (粉末) 化学特性,用途語,生産方法

外観

白色~灰白色, 粉末

溶解性

水及びエタノールと激しく反応して水素を発生する。

用途

有機合成用。

用途

水素化アルミニウムリチウムは有機化学において非常に強力な還元剤として広く利用されている。

使用上の注意

不活性ガス封入

化学的特性

Lithium aluminum hydride is a white to gray powder. A combustible solid. monoclinic crystals; grey in the presence of aluminum impurity; stable below 120°C in dry air; turns grey on standing; hygroscopic; density 0.917 g/cm3; melts at 190°C (decomposes); reacts with water and alcohols; soluble in diethylether and tetrahydrofuran (about 30 and 13 g/100g, respectively at 25°C; also soluble in dimethylcellosolve; sparingly soluble in dibutylether; slightly soluble in dioxane (1g/L) and practically insoluble in hydrocarbons; can be solubilized in benzene by crown ether.

物理的性質

White crystalline powder when pure; monoclinic crystals; grey in the presence of aluminum impurity; stable below 120°C in dry air; turns grey on standing; hygroscopic; density 0.917 g/cm3; melts at 190°C (decomposes); reacts with water and alcohols; soluble in diethylether and tetrahydrofuran (about 30 and 13 g/100g, respectively at 25°C; also soluble in dimethylcellosolve; sparingly soluble in dibutylether; slightly soluble in dioxane (1g/L) and practically insoluble in hydrocarbons; can be solubilized in benzene by crown ether.

使用

It is used as a powerful reducing agent inorganic synthesis. Except for olefinic doublebonds, almost all organic functional groupsare reduced by lithium aluminum hydride(Sullivan and Wade 1980). It is used extensivelyin pharmaceutical synthesis and in catalytichydrogenation.

使用

Lithium aluminum hydride is among the most important industrial reducingagents. It is used extensively in organic syntheses and also in catalytichydrogenation. Reactant or reagent for:
1. The preparation of thermoplastic polyester polyamides from oleic acid
2. Lithium-polymer batteries
3. Hydrodefluorination of gem-difluoromethylene derivatives
4. Asymmetric aldol reactions
5. Synthesis of Li-Al-N-H composites with hydrogen absorption / desorption properties
6. LAH is a powerful reducing agent for many different reduction reactions such as that of ketones to alcohols

使用

Reducing agent; in preparation of other hydrides.

製造方法

Lithium aluminum hydride is prepared by reaction of lithium hydride with aluminum chloride in diethylether:
4LiH + AlCl3 →(C2H5)2O→LiAlH4+3LiCl

一般的な説明

A white powder that turns gray on standing. If spread out over a large flat combustible surface, friction can cause ignition. Used to make other chemicals, as a polymerization catalyst, as a hydrogen source, and as a propellant.

空気と水の反応

Reacts with water vigorously attaining incandescence and ignition of evolved hydrogen [Kelen, Cahiers, 1977, (86), 100]. Reactions with water or moist air (or heated air) are violent and may be explosive [Schmidt, D.L., et al. Inorg. Synth. 1973. p. 14, 51].

反応プロフィール

Lithium aluminium hydride is a powerful reducing agent. React violently on contact with many oxidizing agents. Ignites by friction, especially if powdered. Reacts vigorously with hydroxy compounds such as water, alcohols, carboxylic acids [Mellor 2 Supp. 2:142. 1961]. Caused a violent explosion when used to dry diethylene glycol dimethyl ether: Ignition may have been caused by heat from reaction with impurity water or perhaps decomposition of peroxides in the ether. About 75% of the ether had been removed when the explosion occurred [MCA Case History 1494. 1968]. Reduces carbon dioxide or sodium hydrogen carbonate to methane and ethane at elevated temperatures. These flammable or explosive gases can form when CO2 extinguishers are used to fight hydride fires. Forms explosive complexes with ether, dimethylamine and various tetrazoles. Tetrazoles include, 2-methyl, 2-ethyl, 5-ethyl, 2-methyl-5-vinyl, 5-amino-2-ethyl [US Pat. 3 396 170, 1968].

危険性

Lithium aluminum hydride is a flammable substance. It ignites spontaneously on grinding and reacts violently with water and many organic substances. Diethyl ether, tetrahydrofuran or another suitable solvent should be used in its synthetic applications. Dry or powdered limestone is an appropriate fire extinguishing agent.

健康ハザード

Lithium aluminum hydride is highly corrosive to the skin, eyes, and mucous membranes. Contact with moisture forms lithium hydroxide, which can cause severe burns. Powdered LAH forms dusts that can pose an inhalation hazard. Ingestion of this substance may cause aching muscles, nausea, vomiting, dizziness, and unconsciousness and may be fatal. Ingestion can result in gas embolism due to the formation of hydrogen.
No chronic effects of lithium aluminum hydride have been identified

燃焼性と爆発性

Lithium aluminum hydride is a highly flammable solid and may ignite in moist or heated air. Exposure to water results in the release of hydrogen, which can be ignited by the heat from the exothermic reaction. Lithium aluminum hydride should not be used as a drying agent for solvents because fires can easily result (LAH decomposes at about 125° C, a temperature easily reached at a flask's surface in a heating mantle). The decomposition products of LAH can be quite explosive, and the products of its reaction with carbon dioxide have been reported to be explosive. Use dry chemical powder or sand to extinguish fires involving lithium aluminum hydride. Never use water or carbon dioxide extinguishers on an LAH fire.

安全性プロファイル

Stable in dry air at room temperature. It decomposes above 125' forming Al, H2, and lithium hydride. Very powerful reducer. Can ignite if pulverized even in a dry box. Reacts violently with air, acids, alcohols, benzoyl peroxide, boron trifluoride etherate, (2 chloromethyl furan + ethyl acetate), diethylene glycol dimethyl ether, diethyl ether, 1,2-dimethoxyethane, dimethyl ether, methyl ethyl ether, (nitriles + H2O), perfluorosuccinamide, (perfluorosuccinamide + H20), tetrahydrofuran, water. To fight fire, use dry chemical, includmg special formulations of dry chemicals as recommended by the supplier of the lithium aluminum hydride. Do not use water, fog, spray, or mist. Incompatible with bis (2-methoxyethyl)ether, CO2, BF3, diethyl etherate, dibenzoyl peroxide, 3,5 dbromocyclopentene, 172-dimethoxy ethane, ethyl acetate, fluoro amides, pyridine, tetrahydrofuran. Used as a reducing agent in the preparation of pharmaceuticals. See also ALUMINUM, LITHIUM COMPOUNDS, and HYDRIDES.

職業ばく露

This material is used as a catalyst and as a specialty reducing agent in organic synthesis.

貯蔵

LAH should be handled in areas free of ignition sources under an inert atmosphere. Safety glasses, impermeable gloves, and a fire-retardant laboratory coat are required. A dry powder fire extinguisher or pail of sand (and shovel) must be available in areas where LAH is to be handled or stored. Work with large quantities of powdered LAH should be conducted in a fume hood under an inert gas such as nitrogen or argon. Lithium aluminum hydride should be stored in tightly sealed containers in a cool, dry area separate from combustible materials. Dry LAH powder should never be exposed to water or moist air. Lithium aluminum hydride can be a finely powdered reagent that produces a reactive dust on handling. The older practice of grinding lithium aluminum hydride prior to use can cause explosions and should not be employed.

輸送方法

UN1410 Lithium aluminum hydride (dry), Hazard Class: 4.3; Labels: 4.3-Dangerous when wet material. UN1411 Lithium aluminum hydride, ethereal, Hazard Class: 4.3; Labels: 4.3-Dangerous when wet material, 3- Flammable liquid.

純化方法

Extract it with Et2O, and, after filtering, the solvent is removed under vacuum. The residue is dried at 60o for 3hours, under high vacuum [Ruff J Am Chem Soc 83 1788 1961]. It is a strong reducing agent. It IGNITES in the presence of a small amount of water and reacts with it EXPLOSIVELY. [Becher in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 805 1963.]

不和合性

Combustible solid. Can ignite spontaneously in moist air or heat. Decomposes on heating @ 125C forming aluminum, lithium hydride and flammable hydrogen gas. A strong reducing agent; violent reaction with oxidizers. Violent reaction with water, alcohols, acids, dimethylether, ethers, tetrahydrofuran, benzoyl peroxide; boron trifluoride etherate. Reduces carbon dioxide or sodium hydrogen carbonate to methane and ethane at elevated temperatures. These flammable or explosive gases can form when CO2 extinguishers are used to fight hydride fires. Forms explosive complexes with ether, dimethylamine and various tetrazoles. Tetrazoles include, 2-methyl, 2-ethyl, 5-ethyl, 2-methyl-5-vinyl, 5-amino-2-ethyl .

廃棄物の処理

Small amounts of excess LAH can be destroyed by forming a suspension or solution in an inert solvent such as diethyl ether or hexane, cooling in an ice bath, and slowly and carefully adding ethyl acetate dropwise with stirring. This is followed by the addition of a saturated aqueous solution of ammonium chloride.
Excess lithium aluminum hydride and the products of the treatment described above should be placed in an appropriate container, clearly labeled, and handled according to your institution's waste disposal guidelines. For more information on disposal procedures, see Chapter 7 .

水素化リチウムアルミニウム (粉末) 上流と下流の製品情報

原材料

準備製品


水素化リチウムアルミニウム (粉末) 生産企業

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16853-85-3(水素化リチウムアルミニウム (粉末))キーワード:


  • 16853-85-3
  • LITHIUM ALUMINIUM HYDRIDE extrapure
  • Lithium tetrahydridoaluminate, 1M in ethoxyethyl ether
  • Lithium aluminum hydride, 97% min
  • Lithium aluminum hydride, 1.0m solution in THF
  • Lithium aluminium hydride, 4.0m solution in diethyl ether
  • Lithium aluminum hydride, in resealable tin cans, 95%
  • LITHIUM ALUMINIUM HYDRIDE, 15% SOLUTION IN TOLUENE/THF
  • Lithium aluminium hydride1.0M solution in THFAcroSeal§3
  • Lithium aluminium hydride4.0M solution in diethyl etherAcroSeal§3
  • Lithium aluminium hydride2.4M solution in THFAcroSeal§3
  • Lithium alminum tetrahydride
  • LithiuM AluMiniuM Hydri
  • Lithium aluminum hydride ,94%
  • Lithium aluminium hydride, tablets, 97%
  • Lithium aluminium hydride, tablets (ca. 0.6 g), 95%
  • Lithium aluminium hydride, 15% (3.5M) solution in toluene/THF, AcroSeal§3
  • lithiuM aluMiniuM hydride in thf
  • LithiuM aluMinuM hydride, 1.0 M solution in THF, J&KSeal
  • LithiuM aluMiniuM hydride, 2.4 M solution in THF, J&KSeal
  • LithiuM aluMinuM hydride >=97.0% (gas-voluMetric)
  • LithiuM aluMinuM hydride >=97.0% (gas-voluMetric), tablets (~0.5 g each)
  • LithiuM aluMinuM hydride pellets, reagent grade, 95%
  • LithiuM aluMinuM hydride powder, reagent grade, 95%
  • LithiuM aluMinuM hydride solution ~3.5 M in THF/toluene, suspension
  • Lithium Aluminum Hydride (10% in Tetrahydrofuran, ca. 2.5mol/L)
  • Lithium aluminium hydride,95%,tablets (ca. 0.6 g)
  • Lithium aluminium hydride,95%,powder
  • Lithium aluminium hydride,15% (3.5M) solutionin toluene/THF
  • Lithium aluminium hydride,1M solution in THF
  • Lithium aluminium hydride,95%,in resealable tin cans
  • 水素化リチウムアルミニウム (8%テトラヒドロフラン溶液, 約2mol/L)
  • 水素化リチウムアルミニウム (粉末)
  • 水素化リチウムアルミニウム
  • 水素化アルミニウムリチウム
  • テトラヒドリドアルミン酸リチウム
  • テトラヒドロアルミン酸リチウム
  • 水素化リチウムアルミニウム(粒状)
  • 水素化リチウムアルミニウム,テトラヒドロフラン溶液
  • テトラヒドリドアルミネートリチウム
  • 水素化リチウムアルミニウム (10%テトラヒドロフラン溶液, 約2.5mol/L)
  • 水素化リチウムアルミニウム 溶液
  • 水素化リチウムアルミニウム, powder, 95%
  • 水素化リチウムアルミニウム 2.2M (10wt% ±1wt%) in 2-methyltetrahydrofuran
  • 有機合成化学
  • アルミニウム化合物
  • リチウム化合物
  • 典型金属化合物
  • 構造分類
  • 還元反応
  • 金属別化合物
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