Kunyungudika kwechinhu (melting point of a substance) zvinoreva tembiricha apo chinhu chinoshanduka kubva pakasimba kuenda pamvura.
Mumunda we organic chemistry, kutsunga kwenzvimbo yekunyungudika ndiyo hwaro hwekuziva chimiro chechinhu, uye zvakare imwe yenzira dzakakosha dzekuona kuchena.
Kugadzirira: Lipstick Samples
1) Pre-kurapwa kwemuenzaniso:
Kutanga, preheat chiridzwa, isa huwandu hwakakodzera hwemvura muhombe-diameter capillary muchoto chemoto yekupisa,
wobva waisa lipstick paste ine kaviri-kuvhura capillary kuti uenzanise uye uzadze, 3 ~ 5mm yakakodzera (kazhinji inoreva Kureba kwesample mushure mekunyungudika),
zvinhu zvinoiswa mukapu uye zvakanyungudutswa mumhepo kuti zviongororwe.
Kana iyo lipstick inenge 40-50 madhigirii Celsius, inotanga kunyunguduka. Kana iyo lipstick iri mukupisa kwakanyanya kwenguva yakareba,
ichaita munyu zvishoma nezvishoma, uye chimiro che lipstick chichachinja zvikuru.
Hapana nzira yekuishandisa. Saka munguva dzakajairika, iwe unofanirwa kuisa lipstick yako zvakanaka, uye usaise lipstick panzvimbo ine tembiricha yakanyanya.
Somuenzaniso, muzhizha, usaisa mumotokari. Tembiricha mumotokari yakakwira zvakanyanya, uye iyo lipstick inonyanya kunyorovesa.
HEI, NGATIRAMBANEI!
Kana uine mibvunzo nezve zvigadzirwa kana masevhisi edu, inzwa wakasununguka kusvika kune timu yebasa revatengi.
Batana
Kana uine chero mibvunzo nezve zvigadzirwa kana masevhisi edu, inzwa wakasununguka kusvika kune timu yebasa revatengi. Ipa zviitiko zvakasiyana kune wese ane chekuita nemhando. Tine mutengo wakasarudzika uye zvigadzirwa zvemhando yepamusoro kwauri.