Products
Dipropylene Glycol
Structural Formula
Zvinhu Zvenyama
Kuonekwa: mvura isina ruvara, isina kunhuwa
Kunyungudika: -32°C
Poindi yekuvira:90-95°C1mmHg
Density:1.023g/mLat25°C(lit.)
Mhepo density:4.6(vsair)
Mhepo pressure:<0.01mmHg(20°C)<br /> Refractivity:n20/D1.441(lit.)
Mhepo inopenya:280°F
PH kukosha:6-7(100g/l,H2O,20°C)
Safety Data
Ndezvezvinhu zvine ngozi
Customs kodhi:2909499000
Export Mutero Kudzoserwa Kwemari (%):13%
Application
Didipropylene glycol idoro organic substance, iyo inonyanya kushandiswa muminda inoda zvinhu zvemhando yepamusoro zvakadai sezvinonhuwira, cosmetics, detergents uye zvokudya zvinowedzera.Iyo yekupedzisira yakaderera mumutengo, uye inoshandiswa zvakanyanya seyakagadziriswa maindasitiri isingatsvage mhando yepamusoro yeDPG, pamwe chete nezvinhu zvakasvibirira zvekugadzira unsaturated polyester uye nitrocellulose varnish.
(1) Dipropylene glycol ndiyo inonyanya kunyungudutsa inonhuhwirira yakawanda uye zvizoro.Iyi mbishi ine mvura yakanakisa, oiri uye hydrocarbon co-solubility uye ine kunhuhwirira kwakapfava, kushoma kweganda kushatirwa, kuderera kwehuturu, yunifomu isomer kugovera uye yakanakisa mhando.
(2) Dipropylene glycol inogonawo kushandiswa seyekubatanidza agent uye moisturizing agent mune zvakawanda zvakasiyana-siyana zvekushongedza.Mu perfumery, dipropylene glycol inoshandiswa mune zvinopfuura 50%;mune mamwe maapplication, dipropylene glycol inowanzoshandiswa isingasviki 10% nehuremu.Mamwe mashandisirwo echigadzirwa anosanganisira: mafuta ekupeta bvudzi, kuchenesa ganda (mafuta anotonhora, kugeza muviri, kugeza uye mafuta ekuzora muviri) deodorants, kumeso, maoko uye emuviri kuchengetedza ganda zvigadzirwa, moisturizing ganda kuchengetedza zvigadzirwa uye miromo.
Kugadzirira: Mu 5L reaction kettle, wedzera 30g ye sodium methanol, 750g ye propylene oxide uye 2250g ye propylene glycol se alkali catalyst, chaja nitrogen kusvika 0.3MPa, batidza kubvongodza, kupisa kusvika 110 ℃ mumaminetsi makumi matatu, zvishoma nezvishoma buritsa nitrogen panguva yemaminitsi makumi matatu. iyo yekudziya maitiro, chengetedza kudzvanywa muketero pa 0.3MPa paunenge uchipisa kusvika ku120 ℃ mu Chemicalbook, nguva yekuita 2 maawa.Mushure mekuita kwapera, tonhorera pasi uye dzvanya kunze kwezvinhu zvemvura muketero.Chigadzirwa chekuita chakaongororwa negasi chromatography uye kuchena kwechigadzirwa kwaiva 99.87%;nzvimbo yechando yechigadzirwa chakawanikwa pasi pemamiriro e alkaline catalyst yaive 4 ℃.
