Maleic acid CAS 110-16-7
Maleic acid yog monoclinic tsis muaj kob crystal nrog astringent saj. Soluble hauv dej, ethanol thiab acetone, insoluble hauv benzene. Maleic acid, maleic acid, yog dicarboxylic acid, ib qho organic compound uas muaj ob pawg carboxylic acid ua haujlwm. Maleic acid thiab fumaric acid (fumaric acid) yog cis-trans isomers ntawm ib leeg. Maleic acid feem ntau yog siv los npaj fumaric acid, maleic acid's anhydride yog maleic anhydride, piv nrog nws cov kua qaub anhydride, maleic acid muaj tsawg daim ntawv thov.
| Yam khoom | Specification |
| Melting point | 130-135 ° C (lit.) |
| Boiling point | 275 ° C |
| Qhov ntom | 1.59 g / mL ntawm 25 ° C (lit.) |
| Vapor siab | 0.001Pa ntawm 20 ℃ |
| Refractive Index | 1.5260 (kwv yees) |
| Flash point | 127 ° C |
| LogP | -1.3 ntawm 20 ℃ |
| Acidity coefficient (pKa) | 1.83 (ntawm 25 ℃) |
Maleic acid slows lub rancidity ntawm roj thiab rog thiab yuav siv tau raws li ib tug preservative thiab organic synthesis ntawm roj thiab rog. Maleic acid, tseem hu ua maleic acid, feem ntau yog siv los tsim cov tshuaj tua kab maratha, darcinone, hluavtaws unsaturated polyester cob, ntoo thuv balsam, tartaric acid, fumaric acid, succinic acid thiab lwm yam khoom, tab sis kuj siv nyob rau hauv pharmaceuticals, coatings, zaub mov. thiab luam ntawv thiab dyeing AIDS thiab roj preservatives.
25kg / nruas los yog raws li tus neeg yuav tsum tau muaj.
Maleic acid CAS 110-16-7
Maleic acid CAS 110-16-7
