推荐产品
等级
ACS reagent
analytical standard
for NMR spectroscopy
质量水平
蒸汽压
11.66 psi ( 20 °C)
方案
≥99.5% (GC)
表单
liquid
自燃温度
842 °F
折射率
n20/D 1.358 (lit.)
n20/D 1.359
沸点
26-28 °C (lit.)
mp
−99 °C (lit.)
密度
0.648 g/mL at 25 °C (lit.)
应用
environmental
包装形式
neat
储存温度
2-8°C
SMILES字符串
C[Si](C)(C)C
InChI
1S/C4H12Si/c1-5(2,3)4/h1-4H3
InChI key
CZDYPVPMEAXLPK-UHFFFAOYSA-N
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一般描述
四甲基硅烷已被国际纯粹与应用化学联合会(IUPAC)推荐为所有核素的通用参考品。它通常用作核磁共振(NMR)的参考标准品,用于测量质子的化学位移,TMS在氯仿、甲醇和二甲基亚砜等溶剂中的1H化学位移的温度依赖性已进行了研究。
应用
四甲基硅烷可用作定量NMR(qNMR)法定量分析药用植物提取物和草药产品的内标物。它也可用作FT-IR光谱法和质子核磁共振(1H NMR)技术研究过氧化物化学系统中等规聚丙烯交联反应的内标物。
警示用语:
Danger
危险声明
危险分类
Flam. Liq. 1
储存分类代码
3 - Flammable liquids
WGK
WGK 3
闪点(°F)
-16.6 °F - closed cup
闪点(°C)
-27 °C - closed cup
个人防护装备
Eyeshields, Faceshields, Gloves
法规信息
危险化学品
Temperature dependence of the 1H chemical shift of tetramethylsilane in chloroform, methanol, and dimethylsulfoxide
Hoffman ER, et al.
Journal of Magnetic Resonance, 176(1), 87-98 (2005)
Monitoring the chemical crosslinking of propylene polymers through rheology
Romani F, et al.
Polymer, 43(4), 1115-1131 (2002)
Siddheshwar K Chauthe et al.
Phytochemical analysis : PCA, 23(6), 689-696 (2012-06-19)
Quantitative analysis and standardisation of plant extracts or herbal products is a tedious process requiring time-consuming sample preparation and analytical method development for the resolution of analyte peaks from the complex natural extract. Quantitative analysis by HPLC requires a pure
Roy E Hoffman
Journal of magnetic resonance (San Diego, Calif. : 1997), 163(2), 325-331 (2003-08-14)
The chemical shift of TMS is commonly assumed to be zero. However, it varies by over 1 ppm for 1H and 4 ppm for 13C and shows a correlation with the physical properties of the solvent. Using the commonly accepted
Ramesh C Sharma et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 65(3-4), 787-791 (2006-03-15)
The decomposition of trimethylsilane and tetramethylsilane has been investigated for the first time, using hot wire (catalytic) at various temperatures. Trimethylsilane is catalytic-dissociated in these species SiH(2), CH(3)SiH, CH(3), CH(2)Si. Time of flight mass spectroscopy signal of these species are
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