Zogulitsa
Dipropylene Glycol
Zomangamanga Formula
Zakuthupi
Maonekedwe: madzi opanda mtundu, opanda fungo
Malo osungunuka: -32°C
Malo otentha: 90-95°C1mmHg
Kachulukidwe: 1.023g/mLat25°C(lit.)
Kuchuluka kwa nthunzi:4.6(vsair)
Kuthamanga kwa nthunzi:<0.01mmHg(20°C)<br /> Refractivity:n20/D1.441(lit.)
Pothirira: 280°F
Mtengo wa PH:6-7(100g/l,H2O,20°C)
Data Data
Ndi katundu woopsa
Customs kodi: 2909499000
Mtengo Wobweza Msonkho Wotumiza kunja (%): 13%
Kugwiritsa ntchito
Didipropylene glycol ndi chida choledzeretsa, chomwe chimagwiritsidwa ntchito makamaka m'minda yomwe imafuna zipangizo zamakono monga zonunkhira, zodzoladzola, zotsukira ndi zowonjezera zakudya.Zotsirizirazi ndi zotsika mtengo, ndipo zimagwiritsidwa ntchito kwambiri ngati zosungunulira zamakampani zomwe sizifuna mtundu wa DPG wapamwamba, komanso zida zopangira ma polyester osakanizidwa ndi varnish ya nitrocellulose.
(1) Dipropylene glycol ndiye chosungunulira choyenera kwambiri pamafuta ambiri onunkhira komanso zodzikongoletsera.Izi zopangira zimakhala ndi madzi abwino kwambiri, mafuta ndi hydrocarbon co-solubility ndipo zimakhala ndi fungo lochepa, kupsa mtima pang'ono pakhungu, kawopsedwe kakang'ono, kugawa yunifolomu ya isomer komanso khalidwe labwino kwambiri.
(2) Dipropylene glycol itha kugwiritsidwanso ntchito ngati coupling agent ndi moisturizing muzodzola zosiyanasiyana.Mu perfumery, dipropylene glycol amagwiritsidwa ntchito kuposa 50%;muzinthu zina, dipropylene glycol imagwiritsidwa ntchito mochepera 10% polemera.Zina mwazinthu zomwe zimagwiritsidwa ntchito ndi: zodzola tsitsi, zotsuka pakhungu (zopaka zoziziritsa kukhosi, zotsuka thupi, kusamba ndi mafuta odzola thupi) zonunkhiritsa, nkhope, manja ndi zosamalira khungu lapathupi, zosamalira khungu zonyowetsa ndi zopaka milomo.
Kukonzekera: Mu ketulo ya 5L reaction, onjezerani 30g sodium methanol, 750g ya propylene oxide ndi 2250g ya propylene glycol monga chothandizira zamchere, perekani nayitrogeni ku 0.3MPa, yatsani kuyambitsa, kutentha mpaka 110 ℃ mu mphindi 30, pang'onopang'ono mutulutse nayitrogeni mkati mwa mphindi 30. Kutentha, sungani kupanikizika mu ketulo pa 0.3MPa mukamawotcha mpaka 120 ℃ mu Chemicalbook, nthawi yochitira 2 maola.Zomwezo zikatha, ziziziritsani ndikusindikiza zinthu zamadzimadzi mu ketulo.The anachita mankhwala kusanthula mpweya chromatography ndi chiyero cha mankhwala anali 99,87%;kuzizira kwa mankhwala omwe adapezedwa pansi pazithandizo za alkaline anali 4 ℃.
