I-Dehydroacetic acid/DA/CAS: 520-45-6
Inkcazo emfutshane:
Igama leMveliso: I-Dehydroacetic acid
I-CAS: 520-45-6
Uhlobo: ZA-Y
MF:C8H8O4
MW:168.15
ULWAKHIWO:
Inkcazo:
I-Dehydroacetic acid yi-pyrone derivative, edla ngokwenziwa yi-base-catalyzed dimerization ye-diketene. Isetyenziswa njengesigcini kwimveliso yamayeza, ukutya kunye nezithambiso.
Imigangatho yesibini yamayeza yokusetyenziswa kulawulo lomgangatho, ibonelela iilabhoratri zamayeza kunye nabavelisi ngenye indlela elula nengabizi kakhulu kunokulungiselela imigangatho yokusebenza yangaphakathi.
Inkcazo:
| Into | Inkcazo |
| Indawo yokunyibilika | 111-113 °C (elikhanyayo) |
| Indawo yokubila | 270 °C (elikhanyayo) |
| Unizi lolwapho kuyiwa khona | 700kg/m3 |
| Uxinano | 1.1816 (uqikelelo oluqikelelweyo) |
| Ukunyibilika | 2g/L |
| Isalathisi sokubonisa ukukhanya | 1.4611 (uqikelelo) |
| Ubushushu bokugcina. | Gcina ngaphantsi kwe +30°C. |
| Ifomu | Umgubo ococekileyo wekristale |
| Umbala | Umbala ophuzi okanye ukhilimu |
| PH | 4 (2g/l, H2O, 20℃) |
Ukusetyenziswa
I-Dehydroacetic acid (DHS) isetyenziswa njengesiqinisi kwiimveliso zezithambiso kunye nezamayeza ngenxa yomsebenzi wayo wokubola kunye ne-bactericide, njengesongezelelo kwi-PVC-stabilizers kunye nokwenziwa kwamayeza ezilwanyana.
Isithinteli seGeogard(R) 111a sisekelwe kwi-dehydroacetic acid (DHA) kwaye ngenxa yoko siyaqatshelwa ziingcali ezinkulu zokulawula ubuhle, izinto zokuhlamba kunye neziqholo kwihlabathi liphela ukuba sisetyenziswe kwiimveliso zobuhle kunye nokhathalelo lomntu.
Isithinteli seGeogard(R) 221 sisekelwe kwi-dehydroacetic acid (DHA) kunye ne-benzyl alcohol, kwaye ke ngoko siyaqatshelwa ziingcali ezinkulu zokulawula ubuhle, izinto zokuhlamba kunye neziqholo kwihlabathi liphela ukuba sisetyenziswe kwiimveliso zobuhle kunye nokhathalelo lomntu.
Isigcini seGeogard(R) 361 sisekelwe kwizinto ezintandathu ezisebenzisanayo, zonke ezamkelwe ngokubanzi kwihlabathi liphela: i-dehydroacetic acid (DHA); i-salicylic acid; i-benzoic acid; i-phenoxyethanol; i-benzyl alcohol; kunye ne-benzethonium chloride.
i-antifungal, i-antibacterial
I-dehydroacetic acid sisigcina-zimo esingenabungozi kangako. Le yi-asidi ebuthathaka esetyenziswa njenge-arhente yokutshabalalisa iifungi kunye neebhaktheriya kwizithambiso. Ukubakho kwezinto eziphilayo kunciphisa ukusebenza kwayo. Ayibangeli ukucaphuka okanye i-allergy xa isetyenziswa eluswini.
I-Dehydroacetic Acid (DHA) sisigcina-mpilo esingumgubo wekristale onokunyibilika ngaphantsi kwe-0.1 g kwi-100 g yamanzi kwi-25°C. Ingafumana iimpendulo ezahlukeneyo zeekhemikhali eziyenza ibe luncedo kwiindawo ezininzi. Isetyenziswa kwi-0.01–0.5% yokuthintela ukukhula kwe-microbiological kwiintlobo ngeentlobo zokutya. Isetyenziselwa i-squash esikiweyo okanye esixotyulweyo, kungekho ngaphezulu kwe-65 ppm esele kwi-squash elungisiweyo okanye kwi-squash elungisiweyo.
Ukupakishwa kunye nokuthunyelwa
25KG/Idrama okanye ngokweemfuno zomthengi.
Yeyokwempahla eqhelekileyo kwaye inokuhanjiswa ngolwandle nangomoya
Gcina kwaye ugcine
Ixesha lokuphelelwa: Iinyanga ezingama-24 ukususela kumhla wokwenziwa kwayo kwiphakheji yokuqala engavulwanga igcinwe kwindawo epholileyo neyomileyo kude nelanga elithe ngqo, amanzi.
Indawo yokugcina umoya, Ukomisa kubushushu obuphantsi, Yahlulwe kwii-oxidants, ii-asidi.
