Ibicuruzwa
Dipropylene Glycol
Imiterere
Ibintu bifatika
Kugaragara: ibara ritagira ibara, impumuro nziza
Ingingo yo gushonga: -32 ° C.
Ingingo yo guteka: 90-95 ° C1mmHg
Ubucucike: 1.023g / mLat25 ° C (lit.)
Ubucucike bwumwuka: 4.6 (vsair)
Umuvuduko wumwuka:<0.01mmHg (20 ° C) <br /> Kuvugurura: n20 / D1.441 (lit.)
Ingingo yerekana: 280 ° F.
Agaciro PH: 6-7 (100g / l, H2O, 20 ° C)
Amakuru yumutekano
Biri mubicuruzwa biteje akaga
Kode ya gasutamo ： 2909499000
Igipimo cyo gusubizwa imisoro yoherezwa mu mahanga (%) ： 13%
Gusaba
Didipropylene glycol ni ibintu kama alcool, ikoreshwa cyane mumirima isaba ibikoresho fatizo byujuje ubuziranenge nkibirungo, amavuta yo kwisiga, ibikoresho byo kwisiga hamwe ninyongeramusaruro.Iyanyuma irasa nigiciro gito, kandi ikoreshwa cyane nkumusemburo winganda udasaba ubuziranenge bwa DPG, hamwe nibikoresho fatizo byo gukora polyester idahagije hamwe na nitrocellulose.
(1) Dipropylene glycol nigisubizo cyiza cyane kumpumuro nziza no kwisiga.Ibikoresho bibisi bifite amazi meza, amavuta na hydrocarubone bifatanyiriza hamwe kandi bifite impumuro yoroheje, kurakara uruhu ruto, uburozi buke, gukwirakwiza isomer hamwe nubwiza buhebuje.
.Muri parfumeri, dipropylene glycol ikoreshwa muri 50%;mubindi bikorwa bimwe, dipropylene glycol isanzwe ikoreshwa munsi ya 10% kuburemere.Bimwe mubikorwa byihariye bikoreshwa mubicuruzwa birimo: amavuta yo kwisiga umusatsi, koza uruhu (amavuta akonje, gukaraba umubiri, kwiyuhagira no kwisiga umubiri) deodorant, mumaso, kuboko no kubitaho uruhu rwumubiri, kuvanga uruhu rwo kuvura uruhu hamwe no kwisiga iminwa.
Gutegura: Mu isafuriya ya 5L, ongeramo 30g ya sodium methanol, 750g ya oxyde ya propylene na 2250g ya propylene glycol nka catalizike ya alkali, shyira azote kuri 0.3MPa, fungura kubyutsa, gushyushya 110 ℃ muminota 30, urekure buhoro buhoro azote mugihe cya 30 uburyo bwo gushyushya, komeza umuvuduko muri keteti kuri 0.3MPa mugihe ushyushye kugeza 120 ℃ mugitabo cya Chemical, igihe cyo gukora amasaha 2.Igisubizo kimaze kurangira, humura hanyuma ukande ibintu byamazi mumasafuriya.Igicuruzwa cya reaction cyasesenguwe na gazi chromatografiya kandi ubuziranenge bwibicuruzwa bwari 99.87%;ingingo yo gukonjesha ibicuruzwa byabonetse muburyo bwa catalizike ya alkaline yari 4 ℃.
