Imikhiqizo
I-Dipropylene Glycol
Ifomula Yesakhiwo
Izakhiwo Zomzimba
Ukubukeka: uketshezi olungenambala, olungenaphunga
Izinga lokuncibilika: -32°C
Iphuzu lokubila:90-95°C1mmHg
Ukuminyana:1.023g/mLat25°C(lit.)
Ukuminyana komhwamuko:4.6(vsair)
Umfutho we-vapor:<0.01mmHg(20°C)<br /> I-Refractivity:n20/D1.441(lit.)
Iphoyinti elikhanyayo:280°F
PH inani:6-7(100g/l,H2O,20°C)
Idatha Yezokuphepha
Ngeyezimpahla eziyingozi
Ikhodi yangokwezifiso: 2909499000
Isilinganiso Sokubuyiselwa Kwentela Yokuthekelisa(%):13%
Isicelo
I-Didipropylene glycol iwuphuzo oludakayo, olusetshenziswa kakhulu emikhakheni edinga izinto ezingavuthiwe ezisezingeni eliphakeme njengezinongo, izimonyo, okokuhlanza kanye nezithasiselo zokudla.Lesi sakamuva sinenani eliphansi kakhulu, futhi sisetshenziswa kabanzi njenge-solvent yezimboni engadingi ikhwalithi ephezulu ye-DPG, kanye nezinto zokusetshenziswa zokukhiqiza i-polyester engasetshenzisiwe kanye ne-nitrocellulose varnish.
(1) I-Dipropylene glycol iyisincibilikisi esikahle kakhulu sezinto eziningi zephunga nezimonyo.Le nto eluhlaza inamanzi amahle kakhulu, uwoyela kanye ne-hydrocarbon co-solubility futhi inephunga elithambile, ukucasuka kwesikhumba okuncane, ubuthi obuphansi, ukusatshalaliswa kwe-isomer okufanayo kanye nekhwalithi enhle kakhulu.
(2) I-Dipropylene glycol ingasetshenziswa futhi njenge-ejenti yokuhlanganisa kanye ne-ejenti ethambisayo ezinhlelweni eziningi zezimonyo ezihlukene.E-perfumery, i-dipropylene glycol isetshenziswa ngaphezu kuka-50%;kwezinye izinhlelo zokusebenza, i-dipropylene glycol ngokuvamile isetshenziswa ngaphansi kuka-10% ngesisindo.Ezinye izinhlelo zokusebenza zomkhiqizo othize zihlanganisa: izinto zokuthambisa zokugoqa izinwele, izinto zokuhlanza isikhumba (okhilimu ababandayo, izinto zokugeza umzimba, okugeza nezigcobo zomzimba) iziqedaphunga, ubuso, izandla nemikhiqizo yokunakekela isikhumba somzimba, imikhiqizo yokunakekelwa kwesikhumba ethambisayo kanye namagcobo ezindebe.
Ukulungiselela: Egedlela lokusabela elingu-5L, engeza u-30g we-sodium methanol, u-750g we-propylene oxide kanye no-2250g we-propylene glycol njenge-alkali catalyst, shaja i-nitrogen ku-0.3MPa, vula ukugqugquzela, ukushisa kufika ku-110 ℃ ngemizuzu engu-30, kancane kancane ukhulule i-nitrogen. inqubo yokushisisa, gcina ingcindezi kugedlela ku-0.3MPa lapho ishisa kufika ku-120 ℃ ku-Chemicalbook, isikhathi sokuphendula amahora angu-2.Ngemuva kokuthi ukusabela sekuqediwe, pholisa bese ucindezela uketshezi olusegedlela.Umkhiqizo wokusabela wahlaziywa nge-chromatography yegesi futhi ubumsulwa bomkhiqizo kwakungu-99.87%;indawo yokuqandisa yomkhiqizo etholwe ngaphansi kwesimo se-alkaline catalyst yayingu-4℃.
