Results for diazomethane translation from English to Portuguese

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English

diazomethane

Portuguese

diazometano

Last Update: 2017-04-06
Usage Frequency: 23
Quality:

English

diazomethane (substance)

Portuguese

diazometano

Last Update: 2014-12-09
Usage Frequency: 1
Quality:

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English

diazomethane [chemical/ingredient]

Portuguese

diazometano

Last Update: 2014-12-09
Usage Frequency: 1
Quality:

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English

diazomethane (cas no 334-88-3)

Portuguese

diazometano (número cas 334-88-3)

Last Update: 2017-04-06
Usage Frequency: 2
Quality:

English

methylation with the previously prepared diazomethane solution

Portuguese

metilação com a solução previamente preparada de diazometano (5.2.2.12.).

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

diazomethane is also frequently used as a carbene source.

Portuguese

diazometano é também frequentemente usado como um equivalente de carbeno.

Last Update: 2016-03-03
Usage Frequency: 1
Quality:

English

the simplest example of a diazo compound is diazomethane.

Portuguese

o mais simples exemplo de um composto diazo é o diazometano.

Last Update: 2016-03-03
Usage Frequency: 1
Quality:

English

apparatus for the advance preparation of diazomethane (fieser).

Portuguese

aparelho para a preparação prévia do diazometano segundo fieser.

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

ensure that the yellow colour formed from the formation of diazomethane persists.

Portuguese

produz-se uma coloração amarela que deve ser persistente.

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

von pechmann also discovered polyethylene plastics serendipitously in 1898, when accidentally heating diazomethane.

Portuguese

von pechmann também descobriu por acaso plásticos polietileno em 1898, quando aquecendo diazometano.

Last Update: 2016-03-03
Usage Frequency: 1
Quality:

English

the solution obtained contains about 1,5 g of diazomethane in 100 ml of diethyl ether.

Portuguese

a solução obtida contém cerca de 1,5 g de diazometano em 100 ml de óxido de dietilo (5.2.2.11.).

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

mini-apparatus for the preparation of diazomethane (analyt. chem., 1973, 45, 2302-2).

Portuguese

mini-aparelhagem para a preparação de diazometano (ref. anal. chem. 1973, 45, 2302-3).

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

==history==polyethylene was first synthesized by the german chemist hans von pechmann who prepared it by accident in 1898 while investigating diazomethane.

Portuguese

== história ==o polietileno foi sintetizado pela primeira vez pelo químico alemão hans von pechmann, que, acidentalmente, o preparou em 1898 enquanto aquecia diazometano.

Last Update: 2016-03-03
Usage Frequency: 1
Quality:

English

after 15 minutes (the ether solution should be yellow to indicate excess diazomethane) transfer the sample solution to a 2 ml bottle having an airtight stopper.

Portuguese

passados 15 minutos, verificar se a solução contém um excesso de diazometano (solução amarela), e transferir para um balão de 2 ml fechado hermeticamente.

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

the uncharged =c=o (ethenone) molecule and the zwitterionic == (diazomethane) molecule are isoelectronic.

Portuguese

a molécula desprovida de carga h2c=c=o (etenona) e a molécula "zwitterionica" ch2=n+=n- (diazometano) são isoelétricas.

Last Update: 2016-03-03
Usage Frequency: 1
Quality:

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English

into the external compartment of the diazomethane apparatus place 1,2 ml of the solution obtained in 6.2 and 0,1 ml of methanol (4.4).

Portuguese

colocar 1,2 ml da solução obtida em 6.2 e 0,1 ml de metanol (4.4.) no compartimento exterior do aparelho de produção do diazometano.

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

after methylation with diazomethane, prepared either in situ or in advance in a diethyl ether solution, the methyl derivative of the mercaptoacetic acid is measured by gas/liquid chromatography, methyl octanoate being used as the internal standard.

Portuguese

após metilação pelo diazometano preparado quer extemporaneamente, quer previamente em solução etérea, o derivado metilado do ácido tioglicólico é doseado por cromatografia gás/líquido com o caprilato de metilo como padrão interno.

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

English

apparatus for the preparation of diazomethane for in situ methylation (see fales, h.m., jaouni, t.m. and babashak, j.f., analyt. chem. 1973, 45, 2302).

Portuguese

aparelho para preparação in situ de diazometano (an. chem. 1973, 45, 2302).

Last Update: 2014-11-21
Usage Frequency: 3
Quality:

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