Methacrylic acid (MAA)
| Sunan samfur | Methacrylic acid |
| CAS No. | 79-41-4 |
| Tsarin kwayoyin halitta | Saukewa: C4H6O2 |
| Nauyin kwayoyin halitta | 86.09 |
| Tsarin Tsari | |
| Lambar EINECS | 201-204-4 |
| MDL No. | Saukewa: MFCD00002651 |
Matsayin narkewa 12-16 ° C (lit.)
Wurin tafasa 163 ° C (lit.)
Yawaita 1.015 g/mL a 25 °C (lit.)
Yawan tururi> 3 (Vs iska)
Matsin tururi 1 mm Hg (20 ° C)
Fihirisar mai jujjuyawa n20/D 1.431(lit.)
Wurin walƙiya 170 ° F
Yanayin ajiya Adana a +15°C zuwa +25°C.
Solubility Chloroform, Methanol (Dan kadan)
Sigar ruwa
Matsalolin acidity (pKa) pK1:4.66 (25°C)
Launi mai haske
Kamshi Mai Tsanani ne
PH 2.0-2.2 (100g/l, H2O, 20 ℃)
iyakar fashewa 1.6-8.7% (V)
Solubility na ruwa 9.7g / 100 ml (20ºC)
Danshi & Haske Mai Hankali.Danshi & haske mai hankali
Merck14,5941
Farashin 1719937
Tazarar bayyanar TLV-TWA 20 ppm (～70 mg/m3) (ACGIH).
Ana iya tabbatar da kwanciyar hankali ta hanyar ƙara MEHQ (Hydroquinone methyl ether, ca. 250 ppm) ko hydroquinone.Idan babu stabilizer wannan abu zai yi polymerize da sauri.Mai ƙonewa.Wanda bai dace ba tare da ma'auni mai ƙarfi, hydrochloric acid.
InChIKeyCERQOIWHTDAKMF-UHFFFAOYSA-N
LogP0.93 a 22 ℃
Kalmomin haɗari: Haɗari
Bayanin Hadarin H302+H332-H311-H314-H335
Tsare-tsare P261-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
Alamar kayayyaki masu haɗari C
Lambar nau'in haɗari 21/22-35-37-20/21/22
Umarnin Tsaro 26-36/37/39-45
Lambar safarar Kaya ta Haɗari UN 2531 8/PG 2
WGK Jamus1
Lambar RTECS OZ2975000
Zazzaɓin konewa na kwatsam 752 °F
TSCAYEs
Lambar Kwastam 2916 13 00
Hatsari matakin 8
Marufi Category II
Guba LD50 na baki a cikin zomo: 1320 mg/kg
S26: Idan ana hulɗa da idanu, kurkura nan da nan da ruwa mai yawa kuma ku nemi shawarar likita.
S36/37/39: Sanya tufafin kariya masu dacewa, safar hannu da kariya / ido / fuska.
S45: Idan akwai haɗari ko kuma idan kun ji rashin lafiya, nemi shawarar likita nan da nan (nuna lable in zai yiwu).
Ajiye a wuri mai sanyi.Rike kwandon iska kuma adana a bushe, wuri mai iska.
Cushe a cikin 25Kg; 200Kg; 1000Kg drum, ko cushe bisa ga bukatun abokin ciniki.
Methacrylic acid shine muhimmin kayan sinadari na sinadarai da kuma matsakaicin polymer.
