Definition of methanal in English:

methanal

noun ˈmɛθənalˈmeTHəˌnal

systematic chemical name for formaldehyde
Example sentencesExamples
- A particularly important reaction is with the aldehyde methanal.
- It is manufactured by heating methanal with ammonium chloride.
- For example, menthanol boils at 150.8°F and methanal boils at - 5.8°F.
- Synthesis gas is used to manufacture methanal (formaldehyde, CH 2 = O), and also methanol.
- As has already been stated oxidation yields the aldhyde methanal, but further oxidation of this will yield the carboxylic acid methanoic acid.

Origin

Late 19th century: blend of methane and aldehyde.

Definition of methanal in US English:

methanal

nounˈmeTHəˌnal

systematic chemical name for formaldehyde
Example sentencesExamples
- It is manufactured by heating methanal with ammonium chloride.
- A particularly important reaction is with the aldehyde methanal.
- For example, menthanol boils at 150.8°F and methanal boils at - 5.8°F.
- As has already been stated oxidation yields the aldhyde methanal, but further oxidation of this will yield the carboxylic acid methanoic acid.
- Synthesis gas is used to manufacture methanal (formaldehyde, CH 2 = O), and also methanol.

Origin

Late 19th century: blend of methane and aldehyde.

词汇	methanal
释义	Definition of methanal in English: methanal noun ˈmɛθənalˈmeTHəˌnal systematic chemical name for formaldehyde Example sentencesExamples A particularly important reaction is with the aldehyde methanal. It is manufactured by heating methanal with ammonium chloride. For example, menthanol boils at 150.8°F and methanal boils at - 5.8°F. Synthesis gas is used to manufacture methanal (formaldehyde, CH 2 = O), and also methanol. As has already been stated oxidation yields the aldhyde methanal, but further oxidation of this will yield the carboxylic acid methanoic acid. Origin Late 19th century: blend of methane and aldehyde. Definition of methanal in US English: methanal nounˈmeTHəˌnal systematic chemical name for formaldehyde Example sentencesExamples It is manufactured by heating methanal with ammonium chloride. A particularly important reaction is with the aldehyde methanal. For example, menthanol boils at 150.8°F and methanal boils at - 5.8°F. As has already been stated oxidation yields the aldhyde methanal, but further oxidation of this will yield the carboxylic acid methanoic acid. Synthesis gas is used to manufacture methanal (formaldehyde, CH 2 = O), and also methanol. Origin Late 19th century: blend of methane and aldehyde.
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