1 1 3 3-Tetramethylguanidine (CAS # 80-70-6)
| Hazard Cov Cim | C - Corrosive |
| Risk Codes | R22 - Ua phem yog tias nqos R34 - Ua rau kub hnyiab R20/22 - Ua phem los ntawm kev nqus pa thiab yog tias nqos. R10 - Flammable |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S27 - Tshem tawm tag nrho cov khaub ncaws tsis huv tam sim ntawd. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| UN IDs | UN 2920 8/PG 2 |
| WGK Germany | 1 |
| FLUKA BRAND F CODE | 9-23 |
| TSCA | Yog lawm |
| HS Code | 29 25 2000 ib |
| Kev Ceeb Toom | Teeb meem / Corrosive |
| Hazard Class | 8 |
| Packing Group | II |
| Toxicity | LD50 qhov ncauj hauv Luav: 835 mg / kg |
Taw qhia
Tetramethylguanidine, tseem hu ua N, N-dimethylformamide, yog cov xim tsis muaj kob crystalline. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm tetramethylguanidine:
Zoo:
- Tetramethylguanidine muaj zog alkaline thiab tuaj yeem tsim cov tshuaj alkaline muaj zog hauv cov kua dej.
- Nws yog lub hauv paus tsis muaj zog sib npaug rau cov tshuaj tsis muaj dej, thiab nws tuaj yeem siv los ua tus neeg tau txais cov hydrogen ions.
- Nws yog khoom nyob rau hauv chav tsev kub, tab sis yuav sai sai volatilize rau hauv ib tug tsis muaj kob roj thaum rhuab.
- Nws yog qhov sib xyaw nrog muaj zog hygroscopicity.
Siv:
- Tetramethylguanidine feem ntau yog siv los ua alkali catalyst hauv cov organic synthesis tshuaj.
- Nws kuj tuaj yeem siv rau hauv kev lag luam xws li dye intermediates, electroplating, hloov tau yooj yim polyurethane foams, thiab lwm yam.
Txoj kev:
- Tetramethylguanidine tuaj yeem npaj los ntawm cov tshuaj tiv thaiv ntawm N, N-dimethylformamide nrog ammonia roj ntawm kev kub siab.
- Cov txheej txheem no feem ntau xav tau cua sov thiab ua raws li kev tiv thaiv ntawm cov roj inert.
Cov ntaub ntawv kev nyab xeeb:
- Tetramethylguanidine yog ib qho tshuaj lom thiab yuav tsum tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. Hnav cov hnab looj tes tiv thaiv thiab tsom iav thaum siv.
-Nws tuaj yeem ua rau qhov muag thiab tawv nqaij khaus, thiab ua rau ua pa nyuaj thiab ua rau muaj tsos mob lom.
- Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj oxidants, acids thiab flammable tshuaj thaum siv thiab khaws cia.
- Thaum tuav cov tshuaj tetramethylguanidine, yuav tsum ua raws li cov txheej txheem kev ua haujlwm zoo thiab cov txheej txheem tswj kev nyab xeeb.
