Dimethylmalonic acid (CAS# 595-46-0)
| Iimpawu ezinobungozi | Xi – Irritant |
| Iikhowudi zoMngcipheko | 36/37/38 – Ukucaphukisa amehlo, inkqubo yokuphefumula kunye nolusu. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo. |
| WGK eJamani | 3 |
| Ikhowudi ye-HS | 29171900 |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
I-Dimethylmalonic acid (ekwaziwa ngokuba yi-succinic acid) yi-organic compound. Oku kulandelayo kukwazisa kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-dimethylmalonic acid:
Umgangatho:
- Imbonakalo: I-Dimethylmalonic acid ngokuqhelekileyo ayinambala ikristale okanye umgubo omhlophe.
- Ukunyibilika: Ukunyibilika kwizinyibilikisi eziqhelekileyo ezifana namanzi, i-ethanol kunye ne-ether.
Sebenzisa:
- Njengemathiriyeli ekrwada kwimizi-mveliso: Ingasetyenziselwa ukudibanisa i-polyester resins, izinyibilikisi, iingubo kunye neeglues.
Indlela:
- Indlela eqhelekileyo yokulungiselela i-dimethylmalonic acid ifunyenwe nge-hydroformylation ye-additive ethylene. Inyathelo elithile kukuba i-hydrogenate ethylene kunye ne-formic acid ukwenza i-glycolic acid, kwaye emva koko uqhubeke ne-esterification reaction phakathi kwe-glycolic acid kunye ne-formic acid ukufumana imveliso yokugqibela ye-dimethylmalonic acid.
Ulwazi ngoKhuseleko:
- I-Dimethylmalonic acid ayinayo ityhefu, kodwa kufuneka kuthathelwe ingqalelo ukulandela iinkqubo zokusebenza ezikhuselekileyo kwibhubhoratri nakwindawo yokuvelisa.
- Thintela ukuphefumla uthuli okanye ukudibana nolusu namehlo xa uyisebenzisa, kwaye unxibe izixhobo ezifanelekileyo zokuzikhusela (umz., iiglavu kunye nezibuko).
- Kwimeko yokudibanisa ngengozi, hlambulula indawo echaphazelekayo ngokukhawuleza ngamanzi amaninzi kwaye ufune uncedo lwezonyango ukuba kuyimfuneko.
