Methacrylic Acid (Maa)
| Chigadzirwa Zita | Methacrylic acid |
| CAS. | 79-41-4 |
| Molecular Formula | C4h62 |
| Sreek inoremerwa | 86.09 |
| Formula yakarongeka | |
| Einecs nhamba | 201-204-4 |
| WDC. | MFCD00002651 |
Kunyungudika Pfungwa 12-16 ° C (lit.)
Boiling Point 163 ° C (Lit.)
Density 1.015 g / ml pa 25 ° C (lit.)
Vapor density> 3 (vs mhepo)
Vapor kudzvinyirira 1 mm Hg (20 ° C)
Refractive Index N20 / D 1.431 (lit.)
Flash Pfungwa 170 ° F
Mamiriro ekuchengetedza anotarisira pa + 15 ° C kusvika + 25 ° C.
Solubility Chloroform, Methanol (zvishoma)
Fomu remagetsi
Acidity Factor (pka) PK1: 4.66 (25 ° C)
Ruvara rwakajeka
Kunhuhwirira kunodzora
Ph 2.0-22.2 (100G / L, H2O, 20 ℃)
kuputika muganho 1.6-8.7% (v)
Solubl Solubility 9.7g / 100 ml (20 ºc)
Kunyorova & Chiedza chinonamira. Kunyorova & Chiedza chinonamira
Merck14,5941
Brn171937
Margin of Exosure TLV-TWA 20 PPM (~ 70 mg / m3) (acgih).
Kugadzikana kunogona kudzikiswa nekuwedzera kweMehq (hydroquinone methyl ether, ca. 250 ppm) kana hydroquinone. Mukushayikwa kweiyo stabilizer ichi chinhu chinokurumidza kuronga. Zvichikanganisa. Inopindirana neakasimba oxidizing vamiririri, hydrochloric acid.
Itchikeycerqoiwhtdakmf-uhfffaoyssa-n
Logp0.93 na 22 ℃
Nharembozha: Njodzi
Risk Tsananguro H302 + H332-H311-H314-H335
Prections p261-p280-p301 + p312-p3103 + P311 + P3304 + P340-p3105 + P301 + P3405 + P3305 + P301 + P3405 + P3405 + P3405 + P3101
Njodzi dzezvinhu maraki c
Hazard Category Code 21 / 22-35-37-20 / 21/22
Kuchengetedza Mirayiridzo 26-36 / 37 / 39-45
Njodzi Dzemidziyo Yekutakura Code UN 2531 8 / PG 2
Wgk Germany1
Rtecs nhamba oz2975000
Spontaneous Combustion tembiricha 752 ° F
Tscayes
Tsika kodhi 2916 13 00
Ngozi yeRovere 8
Kurongedza chikamu ii
Kugutsikana ld50 nemuromo muhumabvu: 1320 mg / kg
S26: Panyaya yekusangana nemaziso, svina pakarepo nemvura yakawanda uye kutsvaga zano rekurapa.
S36 / 37/2 39: Pfeka zvipfeko zvakakodzera zvinodzivirira, magurovhosi uye ziso / kumeso kuchengetedzwa.
S45: Kana uine tsaona kana kana iwe uchinzwa kusanzwika, kutsvaga zano rekurapa pakarepo (ratidza ruzha rwechikwanisika).
Chengetedza munzvimbo inotonhorera. Chengetedza mudziyo wekuyeuka uye muchengeti munzvimbo yakaoma, yakatsvedza.
Yakarongedzwa mu 25kg; 200kg; 1000kg chigubhu, kana chakarongedzwa maererano nezvinodiwa nevatengi.
Methacrylic Acid ndeye yakakosha organic makemikari zvidzitiro uye polymer yepakati.
