Dehydroacetic acid/DA/CAS: 520-45-6
Tsananguro pfupi:
Zita reChigadzirwa: Dehydroacetic acid
CAS: 520-45-6
Rudzi: ZA-Y
MF:C8H8O4
MW:168.15
MAUMBIRWO:
Tsananguro:
Dehydroacetic acid imhando yepyrone derivative, iyo inowanzo gadzirwa ne base-catalyzed dimerization ye diketene. Inoshandiswa sechinochengetedza mumishonga, chikafu uye zvigadzirwa zvekushongedza.
Mitemo yemishonga yekushandiswa mukutonga mhando, inopa marabhoritari emishonga nevagadziri nzira iri nyore uye isingadhuri pane kugadzirira mitemo yekushanda mukati mekambani.
Tsanangudzo:
| Chinhu | Tsanangudzo |
| Nzvimbo yekunyunguduka | 111-113 °C (yakapfava) |
| Pokufashaira | 270 °C (yakapfava) |
| Kuwanda kwehuwandu | 700kg/m3 |
| Kuwanda kwevanhu | 1.1816 (fungidziro yakadzama) |
| Kunyunguduka | 2g/L |
| Indekisi yeRefractive | 1.4611 (fungidziro) |
| Tembiricha yekuchengetera. | Chengeta pasi pe +30°C. |
| Fomu | Poda Yakanaka Yemakristalo |
| Ruvara | Yero yakajeka kana kirimu |
| PH | 4 (2g/l, H2O, 20℃) |
Kushandiswa
Dehydroacetic acid (DHS) inoshandiswa semushonga unosimbisa ganda muzvigadzirwa zvekunakisa nekugadzira mishonga nekuda kwebasa rayo rekuuraya fungi nebhakitiriya, semushonga unosimbisa ganda wePVC uye wekugadzira mishonga yemhuka.
Geogard(R) 111a preservative yakavakirwa pa dehydroacetic acid (DHA) saka inozivikanwa nevakuru vakuru vezvekushongedza, zvekuchenesa uye zvezvinonhuwira pasi rese kuti inoshandiswa muzvigadzirwa zvezvekushongedza uye zvekuchengetedza munhu.
Geogard(R) 221 preservative yakavakirwa pa dehydroacetic acid (DHA) ne benzyl alcohol, uye nekudaro inozivikanwa nevakuru vakuru vezvekushongedza, zvekuchenesa uye zvezvinonhuwira pasi rese kuti inoshandiswa muzvigadzirwa zvezvekushongedza uye zvekuchengetedza munhu.
Geogard(R) 361 preservative yakavakirwa pazvikamu zvitanhatu zvinobatana, zvese zvichigamuchirwa pasi rose: dehydroacetic acid (DHA); salicylic acid; benzoic acid; phenoxyethanol; benzyl alcohol; uye benzethonium chloride.
mushonga wefungal, antibacterial
Dehydroacetic acid imushonga unochengetedza muviri une simba shoma rekudzivirira ganda. Iyi iasidhi isina simba inoshandiswa semushonga unoparadza fungi nemabhakitiriya muzvizoro. Kuvapo kwezvinhu zvipenyu kunoderedza kushanda kwayo. Hainyanyi kutsamwisa kana kukonzera allergy kana ikashandiswa paganda.
Dehydroacetic Acid (DHA) mushonga unochengetedza uri upfu hwekristaro hune kunyungudika kweinenge 0.1 g mu 100 g yemvura pa 25°C. Inogona kusangana nemakemikari akasiyana-siyana ayo anoita kuti ishande mumabasa akawanda. Inoshandiswa pa 0.01–0.5% kudzivirira kukura kwezvipembenene muzvikafu zvakasiyana-siyana. Inoshandiswa pakucheka kana kukwesha squash, isina anopfuura 65 ppm inosara mu squash yakagadzirwa kana kuti pa squash yakagadzirwa.
Kurongedza uye Kutumira
25KG/Drum kana zvichienderana nezvinodiwa nevatengi.
Ndezvezvinhu zvakajairika uye zvinogona kutumirwa negungwa nemhepo
Chengeta uye chengeta
Nguva yesherufu: Mwedzi makumi maviri nemana kubva pazuva rekugadzirwa kwayo, yakachengetwa munzvimbo inotonhorera yakaoma isina chiedza chezuva, mvura.
Imba yekuchengetera zvinhu ine mhepo, Inoomesa zvinhu zvishoma, Yakaparadzaniswa nezvinokonzera makemikari, maasidhi.
