2- (3-Butynyloxy) Tetrahydro-2 H-Pyran (CAS # 40365-61-5)
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S23 - Tsis txhob ua pa. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S28 - Tom qab sib cuag nrog daim tawv nqaij, ntxuav tam sim nrog xab npum-suds ntau. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
| WGK Germany | 3 |
| HS Code | 29329900 ib |
Taw qhia
Nws yog ib qho xim tsis muaj xim rau lub teeb daj uas muaj ntxhiab tsw tshwj xeeb.
2-(3-butynoxy) tetrahydrate-2H-pyran feem ntau yog siv los ua ib qho nruab nrab hauv cov organic synthesis.
Cov txheej txheem ntawm kev npaj 2-(3-butynoxy) tetrahydrate-2H-pyran feem ntau yog los ua ke butynyl los ntawm shrinking 3-butynol nrog sulfuric acid, thiab ces react nrog formaldehyde kom tau 3-butynylmethanol. Cov khoom yog esterified nrog tetraoxane kom tau lub hom phiaj compound.
Cov ntaub ntawv kev nyab xeeb: 2-(3-butynyloxy) tetrahydrate-2H-pyran yuav tsum tsis txhob sib cuag nrog cov oxidants muaj zog thiab muaj zog acids. Thaum tuav lossis siv qhov sib xyaw no, hnav cov hnab looj tes tiv thaiv thiab tsom iav kom ntseeg tau tias kev ua haujlwm tau ua tiav hauv qhov chaw muaj cua zoo. Thaum khaws cia thiab thauj, kev ntog thiab muaj zog cua sov yuav tsum tau zam.
