Kayayyaki
Dipropylene glycol
Tsarin Tsari
Abubuwan Jiki
Bayyanar: mara launi, ruwa mara wari
Wurin narkewa: -32°C
Tushen tafasa:90-95°C1mmHg
Yawan yawa: 1.023g/mLat25°C(lit.)
Yawan tururi: 4.6 (vsair)
Matsin tururi:<0.01mmHg(20°C) <br /> Refractivity: n20/D1.441(lit.)
Wutar walƙiya: 280°F
Ƙimar PH: 6-7 (100g/l, H2O, 20°C)
Bayanan Tsaro
Nasa ne na kayan haɗari
Lambar kwastam: 2909499000
Yawan Maido Harajin Fitarwa (%): 13%
Aikace-aikace
Didipropylene glycol wani abu ne na barasa, wanda galibi ana amfani dashi a cikin filayen da ke buƙatar kayan albarkatun ƙasa masu inganci kamar kayan yaji, kayan kwalliya, wanki da ƙari na abinci.Ƙarshen yana da ƙananan ƙananan farashi, kuma ana amfani da shi sosai a matsayin masana'antun masana'antu wanda ba ya buƙatar babban ingancin DPG, da kuma albarkatun kasa don samar da polyester mara kyau da nitrocellulose varnish.
(1) Dipropylene glycol shine mafi kyawun ƙarfi don ƙamshi da yawa da aikace-aikacen kwaskwarima.Wannan danyen abu yana da kyakkyawan ruwa, mai da haɗin gwiwar hydrocarbon kuma yana da ƙamshi mai laushi, ƙarancin ƙwayar fata, ƙarancin guba, rarraba isomer iri ɗaya da kyakkyawan inganci.
(2) Dipropylene glycol kuma za'a iya amfani dashi azaman mai haɗawa da wakili mai laushi a cikin aikace-aikacen kwaskwarima daban-daban.A cikin kayan turare, ana amfani da dipropylene glycol fiye da 50%;A wasu aikace-aikace, dipropylene glycol ana amfani dashi gabaɗaya a cikin ƙasa da 10% ta nauyi.Wasu takamaiman aikace-aikacen samfuran sun haɗa da: kayan shafa gashin gashi, masu wanke fata (masu sanyi, wanke jiki, wanka da ruwan jiki) kayan wanki, fuska, kayan kula da fata na jiki, damshin kayan kula da fata da kuma lebe.
Shiri: A cikin kwandon amsawa na 5L, ƙara 30g na methanol sodium, 750g na propylene oxide da 2250g na propylene glycol azaman mai kara kuzari, cajin nitrogen zuwa 0.3MPa, kunna motsawa, zafi har zuwa 110 ℃ a cikin mintuna 30, a hankali sakin nitrogen yayin da dumama tsari, ci gaba da matsa lamba a cikin kettle a 0.3MPa lokacin dumama har zuwa 120 ℃ a cikin Chemicalbook, dauki lokaci 2 hours.Bayan an gama abin, kwantar da hankali kuma danna kayan ruwa a cikin kettle.An bincika samfurin amsawa ta hanyar chromatography gas kuma tsabtar samfurin shine 99.87%;Daskarewa batu na samfurin samu a karkashin yanayin alkaline mai kara kuzari ya kasance 4 ℃.
