tetramethyl वाक्य
उदाहरण वाक्य
मोबाइल
- Tetramethyl ammonium nitratoborate is insoluble in cold water but slightly soluble in hot water.
- Tetramethylammonium pentanitratoaluminate has been made by recrystalising tetramethyl ammonium tetranitratoaluminate in acetonitrile over several weeks.
- It can form salts with large cations such as tetramethyl ammonium nitratoborate, or tetraethyl ammonium tetranitratoborate.
- The total charge for this anion is 11 and the counterions are 5 tetramethyl ammonium cations and 6 potassium cations.
- They are derivatives of 2, 2, 6, 6-tetramethyl piperidine and are extremely efficient stabilizers against light-induced degradation of most polymers.
- Examples are the oxidized form of tetrathiafulvalene and the radical cation of " N, N, N', N'- tetramethyl-p-phenylenediamine ".
- The compound can also be obtained by thermal decomposition of 2, 2, 3, 3-tetramethyl-4-one-glutaric acid with release of a carbon monoxide molecule.
- In the first step, the carboxylate anion ( formed by deprotonation by an organic base [ not shown ] ) attacks HATU to form the unstable " O "-acyl ( tetramethyl ) isouronium salt.
- Tetramethyl lead can react with diborane in a 1, 2-dimethoxyethane solvent at room temperature to make a range of methyl substituted diboranes, ending up at trimethylborane, but including 1, 1-di, tridiborane.
- Tetramethyl lead can react with diborane in a 1, 2-dimethoxyethane solvent at room temperature to make a range of methyl substituted diboranes, ending up at trimethylborane, but including 1, 1-dimethyldiborane, and trimethyldiborane.
- Superconductivity is exhibited by tetramethyl-tetraselenafulvalene-hexafluorophosphate ( TMTSF 2 PF 6 ), which is a semi-conductor at ambient conditions, shows superconductivity at low temperature ( critical temperature ) and high pressure : 0.9 bar.
- DNA polymerase to cleave a nonextendible, fluorescence-labeled hybridization probe during the extension phase of PCR . A second fluorescent dye, e . g ., 6-carboxy-tetramethyl-rhodamine, quenches the fluorescence of the intact probe.
- The second example of a dioxetane derivative was made shortly after : the symmetrical compound 3, 3, 4, 4-tetramethyl-1, 2-dioxetane, obtained as pale yellow crystals that sublimed even when kept in the refrigerator.
- Duarte's work in this area began with the demonstration of narrow-linewidth laser emission using coumarin-tetramethyl dyes, as molecular gain media, which offer high conversion efficiency and wide tunability in the green region of the electromagnetic spectrum.
- Those include okanin 3, 4, 32, 42-tetramethyl ether, okanin 3, 4, 32-trimethyl ether 42-glucoside, okanin 4-methyl ether 42-glucoside and okanin 4-methyl ether 42-glucoside monoacetate.
- The stranding was the cause of one of Cape Town's earliest great environmental scares, owing to the cargo including drums of tetramethyl lead and tetraethyl lead, volatile and highly toxic compounds that in those days were added to motor fuels as an anti-knocking agent.
- When both the amines are dimethylated, the product tetramethyl thionine is the famous methylene blue, and the intermediates are Azure C ( Monomethyl thionine ), Azure A ( when one of the amines is dimethylated and the other remains primary amine ), and Azure B ( Trimethyl thionine ).
- Carrying out the initial Diels-Alder reaction using a Lewis acid catalyst such as aluminum chloride appears to ensure that the acetyl group is at position 2 of the resulting cyclohexene adduct, which distinguished Iso E Super from other ( previously patented ) fragrances based on tetramethyl-acetyl-octaline.
- Tetramethyl ammonium tetranitratoaluminate forms monoclinic crystals with a = 12.195? b = 9.639?c = 12.908? ? = 90?? = 110.41?? = 90?formula weight 349.17 formulas per unit cell = 4 Unit cell volume is 1422?3 calculated density 1.631 g / cm 3.
- Six phenolic acids were identified ( gallic, homovanillic, protocatehuic, p-hydroxybenzoic, vanillic and p-coumaric ), three flavonoids ( catechin, epicatechin and catechin tetramethyl eter ) and four lignans ( taxiresinol, 7-( 2-methyl-3, 4-dihydroxytetrahydropyran-5-yloxy )-taxiresinol, secoisolariciresinol and laricinresinol ).
- अधिक वाक्य: 1 2
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