有冇人知Butan-1-OI既boiling point 係機多(at standard pressure) ???
同埋我想問下係lab 做 melting point and boiling point 既實驗會有乜野errors,比d suggesstions,唔該........
2007-02-06 13:16:09 · 1 個解答 · 發問者 po ting 1 in 科學 ➔ 化學
Refer to :
http://www.ilo.org/public/english/protection/safework/cis/products/icsc/dtasht/_icsc01/icsc0111.htm
The boiling point and melting point of butan-1-ol are 117oC and -90oC respectively.
The major sources of error in measuring boiling points and melting points are :
(1) The sample contains impurities (including moisture) which gives a lower melting point and a higher boiling point.
(2) The reading error in reading temperature
(3) Incorrect recognization of boiling/melting
2007-02-06 21:59:52 · answer #1 · answered by Uncle Michael 7 · 0⤊ 0⤋