Thiodiglycolic anhydride (CAS#3261-87-8)
| Iikhowudi zoMngcipheko | I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. I-R34 – Ibangela ukutsha I-R22 – Iyingozi xa iginyiwe |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso. |
| Izazisi ze-UN | 3261 |
| Inqaku Lengozi | Eyothusayo |
| Iqela lokuPakisha | III |
Intshayelelo
Ifomula yeekhemikhali yi-C6H8O4S, edla ngokubizwa ngokuba yi-TDGA. Oku kulandelayo yinkcazo yobume bayo, ukusetyenziswa, ukulungiswa kunye nolwazi lokhuseleko:
Indalo:
I-Thiodiglycolic anhydride lulwelo olungenambala ukuya kumthubi olukhanyayo kunye nevumba elibukhali elibukhali. Inokunyibilika kwii-solvents ezininzi zezinto eziphilayo, ezifana ne-alcohols, i-ethers kunye ne-esters.
Sebenzisa:
I-Thiodiglycolic anhydride isetyenziswa ngokuqhelekileyo njenge-reagent yekhemikhali, ngakumbi ukuhlanganiswa kweekhemikhali kunye nezinyibilikisi. Isetyenziswe ngokubanzi kwimimandla yerabha, iplastiki kunye nepeyinti, kwaye isetyenziswa rhoqo ekulungiseleleni i-catalysts, i-antioxidants kunye ne-plasticizers.
Indlela:
I-Thiodiglycolic anhydride inokulungiswa ngokusabela kwe-sodium sulfur chloride (NaSCl), i-acetic anhydride (CH3CO2H) kunye ne-trimethylamine (N (CH3) 3). Iimpendulo ezithile zezi zilandelayo:
I-NaSCl CH3CO2H N(CH3)3 → C6H8O4S NaCl (CH3)3N-HCl
Ulwazi ngoKhuseleko:
I-Thiodiglycolic anhydride iyacaphukisa kwaye inokubangela ukuvuvukala kwamehlo kunye nolusu kwiindawo eziphezulu. Amanyathelo okukhusela ayimfuneko kufuneka athathwe ngexesha lokusetyenziswa, njengokunxiba iiglavu, izibuko kunye nempahla yokukhusela. Kwangaxeshanye, qinisekisa ukuba isetyenziswa kwindawo engena umoya kwaye uphephe ukuphefumla umphunga wayo. Kwimeko yoqhagamshelwano, gubha ngamanzi amaninzi kwaye ufune unyango ngokukhawuleza. Ngexesha lokugcinwa, i-Thiodiglycolic anhydride kufuneka igcinwe kwisitya esivaliweyo, kude nomlilo kunye ne-oxidizing agents.
