Alaabta
Dipropylene Glycol
Qaab-dhismeedka
Guryaha Jirka
Muuqaal: aan midab lahayn, dareere aan ur lahayn
Meesha dhalaalka:-32°C
Barta karkarinta:90-95°C1mmHg
Cufnaanta:1.023g/mLat25°C( shid.)
Cufnaanta uumiga:4.6 (Vsair)
Cadaadiska uumiga:<0.01mmHg(20°C) <br /> Refractivity: n20/D1.441( shid)
Barta toosh:280°F
Qiimaha PH:6-7(100g/l,H2O,20°C)
Xogta Badbaadada
Waxaa iska leh alaabta khatarta ah
Koodhka kastamka: 2909499000
Soo Celinta Canshuurta Dhoofinta (%): 13%
Codsiga
Didipropylene glycol waa walax alkohol ah, taas oo inta badan loo isticmaalo beeraha u baahan alaabta ceeriin oo tayo sare leh sida xawaash, waxyaalaha la isku qurxiyo, saabuunta iyo cuntada lagu daro.Tan dambe waa mid aad u hooseysa qiimihiisu, waxaana si ballaaran loo isticmaalaa sida dareeraha warshadaha oo aan u baahnayn tayada sare ee DPG, iyo sidoo kale alaabta ceeriin ee soo saarista polyester-ka aan saturated iyo nitrocellulose varnish.
(1) Dipropylene glycol waa dareeraha ugu fiican ee udgoon badan iyo codsiyada qurxinta.Maaddadan ceeriin waxay leedahay biyo aad u fiican, saliid iyo hydrocarbon wada-milmi waxayna leedahay ur khafiif ah, cuncun maqaarka ugu yar, sunta hoose, qaybinta isomer lebbiska ah iyo tayada aad u fiican.
(2) Dipropylene glycol sidoo kale waxaa loo isticmaali karaa sida isku-xidhka iyo wakiilka qoyaanka ee codsiyada qurxinta kala duwan.Barfumery, dipropylene glycol waxaa loo isticmaalaa in ka badan 50%;Codsiyada kale qaarkood, dipropylene glycol ayaa guud ahaan loo isticmaalaa in ka yar 10% miisaan ahaan.Qaar ka mid ah codsiyada gaarka ah ee alaabta waxaa ka mid ah: loshinka timaha lagu duuduubo, nadiifiyeyaasha maqaarka (labeenada qabow, dhaqidda jirka, qubeyska iyo kareemka jirka) carafiyeyaasha, wejiga, alaabta daryeelka maqaarka ee gacanta iyo jirka, alaabta daryeelka maqaarka qoyan iyo dawooyinka faruuryaha.
Diyaarinta: In kiish falcelinta 5L, ku dar 30g of methanol sodium, 750g of propylene oxide iyo 2250g of propylene glycol sida kicinta alkali, ku dallaca nitrogen ilaa 0.3MPa, shid walaaq, kulayl ilaa 110 ℃ 30 daqiiqo, si tartiib ah u sii daayo nitrogen inta lagu guda jiro. habka kululaynta, cadaadiska kiliyaha ku hayso 0.3MPa markaad kuleylayso ilaa 120 ℃ buugga Kiimikada, wakhtiga falcelinta 2 saacadood.Ka dib marka falcelinta dhammaato, qabooji oo cadaadi walxaha dareeraha ah ee kiliyaha ku jira.Alaabta falcelinta waxaa lagu falanqeeyay chromatography gaaska iyo nadiifnimada alaabtu waxay ahayd 99.87%;barta qaboojinta ee alaabta la helay iyada oo ku hoos jirta xaaladda kicinta alkaline waxay ahayd 4 ℃.
