化合物简介
Methylcyclopentadienyl manganese tricarbonyl (MMT or MCMT) is an organomanganese compound with the formula (CH3C5H4)Mn(CO)3. Initially marketed as a supplement for use in leaded gasoline, MMT was later used in unleaded gasoline to increase the octane rating. Following the implementation of the Clean Air Act (United States) (CAA) in 1970, MMT continued to be used alongside tetraethyl lead (TEL) in the US as leaded gasoline was phased out (prior to TEL finally being banned from US gasoline in 1995), and was also used in unleaded gasoline until 1977. Ethyl Corporation obtained a waiver from the U.S. EPA (Environmental Protection Agency) in 1995, which allows the use of MMT in US unleaded gasoline (not including reformulated gasoline) at a treat rate equivalent to 8.3 mg Mn/L (manganese per liter).
基本信息
中文名称
2-甲基环戊二烯三羰基锰
英文名称
carbon monoxide,manganese,5-methylcyclopenta-1,3-diene
中文别名
甲基环戊二烯锰、三羰基[(1,2,3,4,5-η)-1-甲基-2,4-环戊二烯基]合锰
英文别名
(Methylcyclopentadienyl)tricarbonylmanganese Ethyl MMT MCMT MMT、MMT、Tricarbonyl(2-methylcyclopentadienyl)manganese、(Methylcyclopentadienyl)tricarbonylmanganese、MCMT、Manganese, tricarbonyl(methyl-π-cyclopentadienyl)-、Ethyl MMT、Antiknock-33
CAS号
12108-13-3
分子式
C9H7MnO3
分子量
218.088
精确质量
217.978
PSA
0.0
LOGP
0.7876
编号系统
PubChem号
24859093
RTECS号
OP1450000
EINECS号
235-166-5
MDL号
MFCD00001426
物化性质
外观与性状
液体
密度
1.38g/mLat 25°C(lit.)
沸点
232-233°C(lit.)
熔点
−1°C(lit.)
闪点
205°F
折射率
n20/D 1.584(lit.)
稳定性
Stable. Incompatible with strong oxidizing agents.
储存条件
库房低温,通风,干燥,与食品原料分开存放
蒸汽密度
>1 (vs air)
蒸汽压
0.05 mm Hg ( 20 °C)
安全信息
RTECS号
OP1450000
安全说明
S23; S26; S36/37/39; S45
危险类别码
R23/24/25
WGK Germany
3
危险品运输编码
UN 3281 6.1/PG 2
危险类别
6.1
包装等级
II
危险品标志
T
信号词
Danger
危险性防范说明
P260; P273; P280; P284; P301 + P310; P302 + P350
危险标志
GHS06, GHS08, GHS09
危险性描述
H301; H310 + H330; H315; H372; H410
