基本情報
- CAS
75-24-1- 標準SMILES
[CH3][Al]([CH3])[CH3]- InChIKey
JLTRXTDYQLMHGR-UHFFFAOYSA-N- 分子式
- C3H9Al
- 平均分子量
- 72.09 g/mol
- 単同位体質量
- 72.05196392
概要
Trimethylaluminium (TMA) is an organoaluminium compound. It is used in the production of methylaluminoxane and Tebbe's reagent, as well as in semiconductor fabrication to grow thin film, high-k dielectrics. Aluminum is the most abundant metal in the earth's crust and is always found combined with other elements such as oxygen, silicon, and fluorine. (L739, L740, L782)
名称と識別子
- 優先名称
- Trimethylaluminum
- IUPAC
- trimethylalumane
- 現地名
- トリメチルアルミニウム
- 英語名
- Trimethylaluminium
- 分子式
- C3H9Al
- 分子量
- 72.09
名称と別名
Trimethylaluminum75-24-1TRIMETHYLALUMINIUMAluminum, trimethyl-trimethylalumaneTrimethylalanetrimethyl aluminumALUMINUM TRIMETHYLAluminum trimethanide(CH3)3AlEINECS 200-853-0BRN 3587197
名称をさらに表示
トリメチルアルミニウム (15%トルエン溶液, 約1.8mol/L)トリメチルアルミニウム (15%ヘキサン溶液, 約1.4mol/L)トリメチルアラントリメチルアルミニウム,N-ヘキサン溶液トリメチルアルミニウム,N‐ヘキサン溶液トリメチルアルミニウム 溶液トリメチルアルミニウムATMtrimethyl-aluminuTrimethylaluminum solutionTrimethylaluminum, min. 98%, 93-1360, contained in 50 ml Swagelok cylinder for CVD/ALDA-T mutatedTMA 99,999%
AV210LG46JTRIMETHYLALUMINUM [MI]DTXSID9058787EC 200-853-04-04-00-04397 (Beilstein Handbook Reference)TRIMETHYLALUMINUM (AL(CH3)3)Aluminum, trimethylRefChem:899800
データベース識別子
- CAS
75-24-1
物性
構造計算による物性
- 極性表面積
- 0 Ų
- 水素結合供与体数
- 0
- 水素結合受容体数
- 0
- 回転可能結合数
- 0
- 重原子数
- 4
- 形式電荷
- 0
- 複雑度
- 8
実験および物理化学的性質
Chemical Classes
Metals -> Metals, Organic Compounds
Flammable agents - 3rd degree
Density0.752 @25 °C
Vapor Pressure
12.4 [mmHg]
69.3 [mm Hg] @60 °C
Physical Description
Liquid; CBI
Clear colorless liquid; mp = 15 deg C; [Merck Index]
物理化学的性質
- 融点
- 15 °C · 15 °C
- 沸点
- 126 °C · 126 °C
- 比重(密度)
- 0.81 g/mL · 0.81 g/mL at 25 °C
- 蒸気圧
- 69.3 mmHg · 69.3 mmHg ( 60 °C)
- 闪点
- 40 °F · 40 °F
- 貯蔵温度
- 0 · 0-6°C
- 溶解性
- 芳香族、飽和脂肪族および脂環式炭化水素に可溶。
- 外見
- 液体
- 色
- 無色透明
- 比重
- 0.688 · 0.688
- 臭い (Odor)
- トリメチルアルミニウム火災から腐食臭と「味」が検出される場合がある
- 水溶解度
- 反応する
- 比熱容量
安全と法規制
GHS分類
GHS Classification
Danger
H250 (98.9%): Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids]
P210, P222, P223, P231, P231+P232, P233, P260, P264, P264+P265, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P370+P378, P402+P404, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 350 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
危険有害性情報
Regulatory Information
Chemical: Aluminium, trimethyl-
Aluminum, trimethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Aluminum, trimethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 04-01-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/11385
Trimethylaluminum: HSNO Approval: HSR006351 Approved with controls
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Other Safety InformationIMAP assessments - Aluminium, trimethyl-: Human health tier I assessment
Hazards Summary
Pyrophoric and corrosive; Reacts violently with water; [Merck Index] Pyrophoric; Reacts violently with water evolving flammable gases; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract; [Sigma-Aldrich MSDS] See Triethylaluminum.
Hazard Classes and Categories
Pyr. Liq. 1 (98.9%)
Flammable agents - 3rd degree, Reactive agents - 3rd degree
CSL Reaction Information
化学と産業
薬理情報
Metabolism/Metabolites
Aluminum is poorly absorbed following either oral or inhalation exposure and is essentially not absorbed dermally. The bioavailability of aluminum is strongly influenced by the aluminum compound and the presence of dietary constituents which can complex with aluminum and enhance or inhibit its absorption. Aluminum binds to various ligands in the blood and distributes to every organ, with highest concentrations found in bone and lung tissues. In living organisms, aluminum is believed to exist in four different forms: as free ions, as low-molecular-weight complexes, as physically bound macromolecular complexes, and as covalently bound macromolecular complexes. Absorbed aluminum is excreted principally in the urine and, to a lesser extent, in the bile, while unabsorbed aluminum is excreted in the faeces. (L739)
用途と製造
Uses
Used as a reagent and catalyst in organic chemistry and as a source of aluminum in semiconductors; [Merck Index]
Semiconductor Manufacturing [Category: Industry]
Trimethylaluminium is used in the production of methylaluminoxane and Tebbe's reagent, as well as in semiconductor fabrication to grow thin film, high-k dielectrics. (L782)
U.S. Production2023: 850,000 - <1,000,000 lb
Consumer UsesCatalyst
Industry UsesCBI
General Manufacturing Information
Electrical Equipment, Appliance, and Component Manufacturing
Aluminum, trimethyl-: ACTIVE
応用分野
解説トリメチルアルミニウム，無色の液体．融点15 ℃，沸点126 ℃．300 ℃ で徐々に熱分解する．n12D1.432．d2000.752．有機溶媒に可溶．溶液中でも気体としても二量体として存在し，空気中で自然発火し，水と爆発的に反応するため，不活性ガス下で取り扱わなければならない．オレフィンの重合触媒，メチル化試薬として使われる．森北出版「化学辞典（第2版）
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