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英文名稱：MesityleneCAS號：108-67-8分子式：C9H12分子量：120.19EINECS號：203-604-4

熔點 -45 °C沸點 163-166 °C(lit.)
密度 0.864 g/mL at 25 °C(lit.)蒸氣密度4.1 (vs air)
蒸氣壓14 mm Hg ( 55 °C)
折射率 n20/D 1.499(lit.)
閃點 112 °F
儲存條件 2-8°C溶解度 Miscible with alcohol, benzene, ether (Windholz et al., 1983), and trimethylbenzene isomers.酸度系數(pKa)>14 (Schwarzenbach et al., 1993)形態Liquid顏色Clear colorless爆炸極限值(explosive limit)0.88-6.1%, 100°F水溶解性 2.9 g/L (20 oC)Merck 14,5907BRN 906806Henry's Law Constant4.03, 4.60, 5.71, 6.73, and 9.63 at 10, 15, 20, 25, and 30 °C, respectively (EPICS, Ashworth et al.,1988)暴露限值NIOSH REL: TWA 25 ppm (125 mg/m³); ACGIH TLV: TWA for mixed isomers 25 ppm (adopted).穩定性Stable. Combustible. Incompatible with strong oxidizing agents.

危險性符號(GHS)
GHS02,GHS07,GHS09警示詞Warning危險性描述H226-H315-H335-H411防范說明P210-P273-P304+P340+P312-P391-P403+P235-P501-P261-P280a-P303+P361+P353-P405-P501a危險品標志 Xi,N,F,T危險類別碼 10-37-51/53-39/23/24/25-23/24/25-11-37/38安全說明 61-45-36/37-16-7危險品運輸編號 UN 2325 3/PG 3
WGK Germany 2
RTECS號OX6825000
F 10自燃溫度1022 °FHazard Note Irritant/FlammableTSCA YesHazardClass 3PackingGroup III海關編碼 29029080毒性LD50 (inhalation) for rats 24 g/m³/4-h (quoted, RTECS, 1985).