Dimethylmalonic acid (CAS # 595-46-0)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus 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 - Hnav khaub ncaws tiv thaiv zoo. |
| WGK Germany | 3 |
| HS Code | 29171900 ib |
| Hazard Class | IRRITANT |
Taw qhia
Dimethylmalonic acid (tseem hu ua succinic acid) yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm dimethylmalonic acid:
Zoo:
- Cov tsos mob: Dimethylmalonic acid feem ntau tsis muaj xim crystalline lossis hmoov dawb.
- Solubility: Soluble nyob rau hauv cov kuab tshuaj xws li dej, ethanol thiab ether.
Siv:
- Raws li cov khoom siv raw: Nws tuaj yeem siv los ua cov khoom siv polyester resins, cov kuab tshuaj, txheej thiab cov nplaum.
Txoj kev:
- Ib txoj hauv kev rau kev npaj ntawm dimethylmalonic acid yog tau los ntawm hydroformylation ntawm ethylene additive. Cov kauj ruam tshwj xeeb yog hydrogenate ethylene nrog formic acid los tsim glycolic acid, thiab tom qab ntawd txuas ntxiv cov tshuaj tiv thaiv esterification ntawm glycolic acid thiab formic acid kom tau txais cov khoom kawg dimethylmalonic acid.
Cov ntaub ntawv kev nyab xeeb:
- Dimethylmalonic acid tsis muaj tshuaj lom, tab sis tseem yuav tsum tau saib xyuas kom ua raws li cov txheej txheem kev nyab xeeb hauv chav kuaj thiab ntawm qhov chaw tsim khoom.
- Tiv thaiv kom tsis txhob nqus cov plua plav lossis kev sib cuag ntawm daim tawv nqaij thiab qhov muag thaum siv, thiab hnav cov iav tiv thaiv tsim nyog (xws li, hnab looj tes thiab tsom iav).
- Thaum muaj kev sib cuag tsis raug, yaug qhov chaw raug mob tam sim ntawd nrog dej txaus thiab nrhiav kev pab kho mob yog tias tsim nyog.
