Guaiacol (CAS # 90-05-1)
| Risk Codes | R22 - Ua phem yog tias nqos R36/38 - Kab mob rau qhov muag thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | 26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej kom ntau thiab nrhiav kev kho mob. |
| UN IDs | 2810 ib |
| WGK Germany | 1 |
| RTECS | SIB 7525000 |
| TSCA | Yog lawm |
| HS Code | 29095010 ib |
| Kev Ceeb Toom | Toxic/Irritant |
| Hazard Class | 6.1 (b) |
| Packing Group | II |
| Toxicity | LD50 qhov ncauj hauv nas: 725 mg / kg (Taylor) |
Taw qhia
Guaiacol yog ib qho organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm guaiacol luff:
Zoo:
- Cov tsos mob: Guaiac yog cov kua pob tshab nrog lub aroma tshwj xeeb.
- Solubility: Soluble nyob rau hauv ntau cov organic solvents, xws li ethanol thiab ether.
Siv:
- Tshuaj tua kab: Guaiacol qee zaum siv los ua cov tshuaj tua kab.
Txoj kev:
Guaiacol tuaj yeem muab rho tawm los ntawm guaiac ntoo (ib tsob nroj) los yog tsim los ntawm cov tshuaj methylation ntawm cresol thiab catechol. Synthesis txoj kev muaj xws li cov tshuaj tiv thaiv ntawm p-cresol nrog chloromethane catalyzed los ntawm alkali los yog p-cresol thiab formic acid nyob rau hauv acid catalysis thiab hais txog.
Cov ntaub ntawv kev nyab xeeb:
- Guaiacol vapor yog khaus khaus thiab tuaj yeem cuam tshuam rau lub qhov muag, tawv nqaij, thiab ua pa. Hnav looj tsom iav, hnab looj tes thiab daim npog qhov ncauj yog tias tsim nyog.
- Nws yuav tsum tau khaws cia kom deb ntawm qhov hluav taws kub thiab kub, thiab khaws cia rau hauv lub thawv airtight kom tsis txhob muaj oxidants.
- Thaum siv guaiacol nyob rau hauv ib qho chaw zoo-ventilated thiab tsis txhob nqus nws vapors rau lub sij hawm ntev.
- Kov qhov sib xyaw kom raug raws li cov txheej txheem kev khiav hauj lwm thiab cov txheej txheem tswj kev nyab xeeb. Thaum sib cuag nrog daim tawv nqaij los yog siv, yaug tam sim ntawd nrog dej kom ntau thiab nrhiav kev pab kho mob.
