1 1 3 3-Tetramethylguanidine (CAS# 80-70-6)
| Izimpawu Eziyingozi | C – Iyabola |
| Amakhodi Engozi | I-R22 – Iyingozi uma igwinywe R34 – Ibangela ukusha U-R20/22 – Kuyingozi ngokuhogela umoya futhi uma ugwinyiwe. U-R10 – Uyavutha |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S27 – Khumula ngokushesha zonke izingubo ezingcolile. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.) S16 – Zigcine kude nemithombo yokuthungela. |
| Ama-ID e-UN | UN 2920 8/PG 2 |
| I-WGK Germany | 1 |
| AMAKHODI E-FLUKA BRAND F | 9-23 |
| I-TSCA | Yebo |
| Ikhodi ye-HS | 29252000 |
| Inothi Lengozi | Iyingozi/Iyagqwala |
| I-Hazard Class | 8 |
| Iqembu Lokupakisha | II |
| Ubuthi | I-LD50 ngomlomo kuNogwaja: 835 mg/kg |
Isingeniso
I-Tetramethylguanidine, eyaziwa nangokuthi i-N,N-dimethylformamide, iyikristale engenambala eqinile. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-tetramethylguanidine:
Ikhwalithi:
- I-Tetramethylguanidine ine-alkaline enamandla futhi ingakha isixazululo se-alkaline esixutshweni esinamanzi.
- Isisekelo esibuthakathaka esilingana nesisombululo esingenamanzi, futhi singasetshenziswa njengomamukeli wama-ion e-hydrogen.
- Iqinile ezingeni lokushisa elilingana negumbi, kodwa ingashintsha ngokushesha ibe igesi engenambala uma ishiswa.
- Kuyinhlanganisela ene-hygroscopicity eqinile.
Sebenzisa:
- I-Tetramethylguanidine isetshenziswa kakhulu njenge-alkali catalyst ku-organic synthesis reactions.
- Ingasetshenziswa futhi ezimbonini ezifana ne-dayi intermediates, electroplating, flexible polyurethane foams, njll.
Indlela:
- I-Tetramethylguanidine ingalungiswa ngokusabela kwe-N,N-dimethylformamide ngegesi ye-ammonia ekucindezelweni okuphezulu.
- Le nqubo ngokuvamile idinga ukushisa futhi yenziwa ngaphansi kokuvikelwa kwegesi ye-inert.
Ulwazi Lokuphepha:
- I-Tetramethylguanidine iyinhlanganisela enobuthi futhi kufanele igwenywe ukuthintana nesikhumba namehlo. Gqoka amagilavu okuzivikela kanye nezibuko lapho usebenzisa.
- Kungabangela ukucasuka kwamehlo nesikhumba, futhi kubangele ubunzima bokuphefumula kanye nezimpawu zobuthi.
- Kufanele kuqashelwe ukugwema ukuthintana nama-oxidants, ama-acids nezinto ezivuthayo ngesikhathi sokusetshenziswa nokugcinwa.
- Lapho uphatha i-tetramethylguanidine, izinqubo ezifanele zokusebenza zelabhorethri kanye nezinqubo zokuphatha eziphephile kufanele zilandelwe.
