328251
四甲基氢氧化铵 溶液
10 wt. % in H₂O, solution
别名:
N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH
产品名称
四甲基氢氧化铵 溶液, 10 wt. % in H2O
蒸汽压
17.5 mmHg ( 20 °C)
质量水平
浓度
10 wt. % in H2O
折射率
n20/D 1.3521
pH值（酸碱度）
(ca.13 at 20 °C (68 °F))
溶解性
water: soluble
密度
1.006 g/mL at 25 °C
官能团
amine
SMILES字符串
[OH-].C[N+](C)(C)C
InChI
1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1
InChI key
WGTYBPLFGIVFAS-UHFFFAOYSA-M
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一般描述
四甲基氢氧化铵（TMAH）是一种市售的季铵碱，其碱度明显高于氢氧化铵。
应用
四甲基氢氧化铵溶液（在 H2O 中为 10 wt.%）可用作：
TMAH 由于其高硅蚀刻速率，也可用作硅的各向异性蚀刻剂。使用 TMAH 的主要优点是，由于不存在碱离子，它不会对电路造成危险。
- 一种在 IPA 中使用 2-（3，4-环氧环己基）乙基三甲氧基硅烷（ECTMS）通过溶胶-凝胶法合成环氧多面体低聚倍半硅氧烷（EPOSS）的反应物。
- 一种用于修饰 SnO2 纳米晶体的离子液体，可作为钙钛矿太阳能电池中的有效电子传输层。
TMAH 由于其高硅蚀刻速率，也可用作硅的各向异性蚀刻剂。使用 TMAH 的主要优点是，由于不存在碱离子，它不会对电路造成危险。
警示用语：
Danger
危险分类
Acute Tox. 1 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 1 Dermal - STOT SE 1
靶器官
Central nervous system, Liver,thymus
储存分类代码
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Vladislav V Lobodin et al.
Analytical chemistry, 85(16), 7803-7808 (2013-08-08)
Ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectrometry (FTICR MS) enables the direct characterization of complex mixtures without prior fractionation. High mass resolution can distinguish peaks separated by as little as 1.1 mDa), and high mass accuracy enables assignment of
Jong Tae Leem et al.
Polymers, 13(10) (2021-06-03)
EPOSS of polyhedral oligomeric silsesquioxanes (POSS) mixture structure and LPSQ of ladder-like polysilsesquioxane (LPSQ) structure were synthesized via sol-gel reaction. EPSQ had a high molecular weight due to polycondensation by potassium carbonate. The EPSQ film showed uniform surface morphology due
Hui Chong et al.
Langmuir : the ACS journal of surfaces and colloids, 28(4), 2091-2098 (2011-11-08)
A new water-soluble conjugated polymer containing fluorene and boron-dipyrromethene repeat units in the backbones (PBF) that exhibits red emission was synthesized and characterized. Cationic PBF forms uniform nanoparticles with negatively charged disodium salt 3,3'-dithiodipropionic acid (SDPA) in aqueous solution through
Lina Barreto et al.
Eukaryotic cell, 10(9), 1241-1250 (2011-07-05)
Potassium homeostasis is crucial for living cells. In the yeast Saccharomyces cerevisiae, the uptake of potassium is driven by the electrochemical gradient generated by the Pma1 H(+)-ATPase, and this process represents a major consumer of the gradient. We considered that
Qin Chen et al.
Bioresource technology, 117, 186-192 (2012-05-23)
The aim of this study was to explore the synergies of laccase, a ligninolytic enzyme, with cellulose and hemicellulase amendments on ensiled corn stover. Molecular signals of lignin decomposition were observed by tetramethylammonium hydroxide thermochemolysis and gas chromatography-mass spectroscopy (TMAH-GC-MS)
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