257222

三甲基铝

97%

• 别名: TMA, 三甲基铝
• 线性分子式: (CH₃)₃Al
• CAS号: 75-24-1
• 分子量: 72.09
• Beilstein: 3587197
• EC號碼: 200-853-0
• MDL號碼: MFCD00008252
• 分類程式碼代碼: 12352103
• PubChem物質ID: 24855575
• NACRES: NA.23

属性

• 蒸汽壓力: 69.3 mmHg ( 60 °C)
• 描述: heat of vaporization: ~41.9 kJ/mol (dimer)
• 化驗: 97%
• 形狀: liquid
• 反應適用性: core: aluminum
• bp: 125-126 °C (lit.); 127 °C/760 mmHg; 20 °C/8 mmHg; 56 °C/50 mmHg
• mp: 15 °C (lit.)
• 密度: 0.752 g/mL at 25 °C (lit.)
• SMILES 字串: C[Al](C)C
• InChI: 1S/3CH3.Al/h3*1H3;
• InChI 密鑰: JLTRXTDYQLMHGR-UHFFFAOYSA-N

说明

一般說明

Trimethylaluminum (TMA) is a widely used precursor in the chemical vapor deposition (CVD) process to produce thin films in various applications. TMA is highly reactive and pyrophoric, which makes it an effective source of aluminum in thin film deposition processes to improve optoelectronic properties, such as enhanced light absorption and carrier transport characteristics.

應用

Trimethylaluminum can be used:

• As a growth initiator to synthesize self-assembled aluminum nanoparticles via atomic layer deposition.
• As a precursor to synthesize aluminum-doped ZnO thin films(AZO) for electron transport layer of perovskite solar cells. TMA enhances electrical conductivity and thermal stability of perovskite layers.
• To fabricate Al₂O₃-coated Si-alloy anodes for Li-ion batteries. This coating helps to suppress the volume expansion of Si and improves cell stability.
• To fabricate Al₂O₃-coated graphite electrode with superior anti-self-discharging behavior (260 h) with long stability (900 cycles), for Al-ion battery.

包裝

以配备1/4转向青铜球阀(Z122661)的Sure/Pac^™气瓶供货。配备1/4"" NPT出口内螺纹，并以1/4"" NPT外螺纹碳钢塞密封。确认阀门处于关闭位置后必须在使用前取下塞子。

适配：

• Aldrich^® Sure/Pac^™液化气站Z566446
• PTFE密封胶带Z104388或Z221880
• 带入口隔垫的直通式接头Z118141，隔垫（胶塞）为Z565687或Z565695

详情参见技术手册AL-136：Aldrich Sure/Pac^™ 气缸系统

其他說明

低于20°C条件下储存可能会导致结晶的形成。

法律資訊

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

安全信息

• 象形圖: GHS02,GHS05
• 訊號詞: Danger
• 危險聲明: H250,H260,H314
• 防範說明: P210 - P231 + P232 - P280 - P303 + P361 + P353 - P305 + P351 + P338 - P370 + P378
• 危險分類: Eye Dam. 1 - Pyr. Liq. 1 - Skin Corr. 1B - Water-react 1
• 安全危害: EUH014
• 儲存類別代碼: 4.2 - Pyrophoric and self-heating hazardous materials
• 水污染物質分類（WGK）: nwg
• 閃點（°F）: No data available
• 閃點（°C）: No data available
• 個人防護裝備: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter