2,5-Dihydroxybenzoic acid CAS # 490-79-9
| Risk Codes | R22 - Ua phem yog tias nqos 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 - Hnav khaub ncaws tiv thaiv zoo. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
| WGK Germany | 3 |
| RTECS | LOJ 385000 |
| TSCA | Yog lawm |
| HS Code | 29182990 ib |
| Kev Ceeb Toom | Ua phem |
Taw qhia
2,5-Dihydroxybenzoic acid yog cov organic compound. Cov hauv qab no yog kev qhia txog nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
- Pom: 2,5-dihydroxybenzoic acid yog dawb crystalline hmoov.
- Solubility: Nws tuaj yeem yaj hauv dej thiab hauv cov kuab tshuaj organic xws li ethanol thiab chloroform.
- pH: Nws tsis muaj zog acidic nyob rau hauv aqueous daws.
Siv:
- Kev siv tshuaj lom neeg: 2,5-dihydroxybenzoic acid tuaj yeem siv los ua cov khoom siv raw rau cov organic synthesis thiab tuaj yeem koom nrog ntau yam tshuaj lom neeg los npaj lwm cov tebchaw.
Txoj kev:
- Ib txoj kev npaj siv feem ntau yog kev sib txuas ntawm 2,5-dihydroxybenzoic acid los ntawm thermal acidolysis ntawm phthalic acid.
Cov ntaub ntawv kev nyab xeeb:
- 2,5-Dihydroxybenzoic acid kuj tsis tshua muaj kev phom sij rau tib neeg thiab ib puag ncig hauv kev ua haujlwm ib txwm muaj.
- Nws tuaj yeem ua rau khaus thiab ua rau lub qhov muag thiab tawv nqaij thiab yuav tsum zam thaum tuav. Nyob rau hauv rooj plaub uas tsis sib cuag, yaug tam sim ntawd nrog dej ntau.
- Thaum lub sij hawm cia, yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag nrog cov oxidants muaj zog, qhov kub thiab txias, thiab qhov hluav taws kub kom txo tau qhov muaj kev nyab xeeb.
