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单词 paraformaldehyde
释义

Definition of paraformaldehyde in English:

paraformaldehyde

noun ˌparəfəˈmaldɪhʌɪdˌparəfɔːˈmaldɪhʌɪd
Chemistry

  • A white crystalline solid, obtained by the evaporation of an aqueous solution of formaldehyde (methanal), which is a polymer of formaldehyde and is used as a disinfectant, fumigant, and bactericide, and as an intermediate in chemical synthesis; polyoxymethylene, (HCHO)ₙ.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From para- + formaldehyde.

 
 

Definition of paraformaldehyde in US English:

paraformaldehyde

noun
Chemistry

  • A white crystalline solid, obtained by the evaporation of an aqueous solution of formaldehyde (methanal), which is a polymer of formaldehyde and is used as a disinfectant, fumigant, and bactericide, and as an intermediate in chemical synthesis; polyoxymethylene, (HCHO)ₙ.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From para- + formaldehyde.

 
 
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更新时间：2025/11/4 19:13:22