(R)-tetrahydrofuran-2-carboxylic acid (CAS # 87392-05-0)
| Risk Codes | R22 - Ua phem yog tias nqos R34 - Ua rau kub hnyiab R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| 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. 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.) S36 - Hnav khaub ncaws tiv thaiv zoo. |
| UN IDs | UN 3265 8/PG 3 |
| WGK Germany | 3 |
| HS Code | 29321900 ib |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
R-(+) tetrahydrofuranoic acid. Cov hauv qab no yog kev qhia txog qee yam ntawm cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm R-(+) tetrahydrofuranoic acid:
Zoo:
- R-(+) tetrahydrofuranoic acid yog cov xim tsis muaj xim rau daj ntseg daj nrog ib qho txawv qaub saj.
- Nws dissolves nyob rau hauv dej thiab tshwm raws li ib tug kua nrog kho qhov muag rotation ntawm chav tsev kub.
- Nws tuaj yeem cuam tshuam nrog lwm cov tebchaw xws li esterification, condensation, txo, thiab lwm yam.
Siv:
- R-(+) tetrahydrofuranoic acid kuj tseem siv rau hauv kev npaj ntawm lwm cov organic tebchaw, xws li hauv kev sib txuas ntawm biodegradable plastics xws li polylactic acid.
Txoj kev:
- R-(+) tetrahydrofuranoic acid tuaj yeem npaj tau los ntawm ntau txoj hauv kev xws li kev sib cais kho qhov muag, tshuaj txo qis, thiab cov txheej txheem enzymatic.
- Kev sib cais kho qhov muag yog ib txoj hauv kev npaj siv los cais lwm cov isomers ntawm D-lactate los ntawm kev xaiv cov kab mob tsim nyog lossis cov enzymes.
Cov ntaub ntawv kev nyab xeeb:
- R-(+) tetrahydrofuranoic acid kuj muaj kev nyab xeeb raws li kev siv ib txwm siv.
- Kev sib cuag ntev yuav ua rau khaus ntawm daim tawv nqaij thiab qhov muag, thiab yuav tsum tau ceev faj thaum tuav.
- Thaum khaws cia thiab tuav, cov txheej txheem kev nyab xeeb uas cuam tshuam yuav tsum tau ua raws li nruj me ntsis, thiab kev sib cuag nrog cov muaj zog oxidizing cov neeg ua haujlwm thiab cov khoom siv hluav taws xob yuav tsum zam.
