Methacrylic acid(MAA)
| inoa mea kūʻai | Methacrylic acid |
| CAS No. | 79-41-4 |
| ʻAno molekala | C4H6O2 |
| Kaumaha molekula | 86.09 |
| Hui Pū ʻIa | |
| Helu EINECS | 201-204-4 |
| MDL No. | MFCD00002651 |
Ka helu heheʻe 12-16 °C (kukui)
Ka helu hoʻolapalapa 163 °C (kukui)
Māmā 1.015 g/mL ma 25 °C (māmā)
ʻAno māhu >3 (vs ea)
Pumi mahu 1 mm Hg (20 °C)
Hōʻike manaʻo hoʻohālikelike n20/D 1.431(māmā)
Kekahi uila 170 °F
Nā kūlana mālama E kūʻai ma +15°C a i +25°C.
Solubility Chloroform, Methanol (Lihi iki)
ʻAno wai
Mea ʻakika (pKa)pK1:4.66 (25°C)
kala kala
ʻO ka ʻala he mea ʻino
PH 2.0-2.2 (100g/l, H2O, 20 ℃)
palena pahū 1.6-8.7%(V)
Hiki i ka wai 9.7g /100 mL (20 ºC)
Māmā & Māmā.Māmā a me ka māmā
Merck14,5941
BRN1719937
Ka palena o ka wehe ʻana TLV-TWA 20 ppm (～70 mg/m3) (ACGIH).
Hiki ke hoʻopaʻa ʻia ma ka hoʻohui ʻana o MEHQ (Hydroquinone methyl ether, ca. 250 ppm) a i ʻole hydroquinone.I ka loaʻa ʻole o kahi stabilizer e maʻalahi kēia mea i ka polymerize.Hiki ke puhi.ʻAʻole kūpono me nā mea oxidizing ikaika, waika hydrochloric.
InChIKeyCERQOIWHTDAKMF-UHFFFAOYSA-N
LogP0.93 ma 22 ℃
Nā ʻŌlelo Pilikino: ʻO ka pōʻino
Hōʻike pilikia H302+H332-H311-H314-H335
E mālama pono iā P261-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
ʻO nā waiwai weliweli C
Helu helu pōʻino 21/22-35-37-20/21/22
Nā ʻōlelo aʻoaʻo palekana 26-36/37/39-45
Kānāwai lawe ʻana i nā ukana ʻino UN 2531 8/PG 2
WGK Kelemānia1
Helu RTECS OZ2975000
He 752 °F ka wela wela wela
TSCAAe
Kānāwai Dute 2916 13 00
Papa pilikia 8
Māhele ʻĀpana II
ʻO ka ʻawaʻawa LD50 ma ka waha i ka Lapi: 1320 mg/kg
S26: Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S36/37/39: E ʻaʻahu i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
S45: Inā loaʻa ka ulia pōpilikia a i ʻole ke kino ʻole ʻoe, e ʻimi koke i ka ʻōlelo aʻo lapaʻau (e hōʻike i ka lepili inā hiki).
E mālama i kahi anuanu.E mālama pono i ka pahu a waiho i kahi maloʻo a me ka makani.
Hoʻopili ʻia i 25Kg; 200Kg; 1000Kg pahu, a i hoʻopaʻa ʻia e like me nā pono o ka mea kūʻai aku.
ʻO ka methacrylic acid he mea waiwai nui kemika a me ka polymer intermediate.
