理化指标Characteristic Index
2-Hydroxyethyl methacrylate(HEMA)
HEMA甲基丙烯酸羟乙酯的简称
2-Hydroxyethyl methacrylate abbreviation: HEMA
HEMA CAS NO: 868-77-9 海关编码HS code: 2916140000
分子式(Formula Weight): C6H10O3
分子量(Molecular Weight): 130.14
分子结构Molecular structure:
密度(density):1.066
化学式(chemical formula):CH2=C(CH3)COOCH2CH(OH)CH3
纯度purity (%): 98.0(PSDB法)
水份water content (%):highest 0.3
颜色Color(APHA):highest 25
凝固点solidifying point(℃):-57
沸点·蒸汽压Boiling Point vapour pressure (℃/hpa):96/13.3
闪点flash point (℃):106/206°F
质量与指标Quality and Index:
外观: 无色透明易流动液体
Appearance: clear transparent flowable liquid.
含量(Purity): 97%
物化性质(Physical Properties)
熔点(Melting Point): -12℃
沸点(Boiling Point): 95℃(1.333kPa),87℃(0.67kPa),71-73℃(0.267kPa)
相对密度(relative density):1.074(20/4℃)
折射率(refractive index):1.4505
闪点(开杯)( flash point in open cup):108℃
Tg值/玻璃化温度(glass transition temperature)Tg value (℃):55
阻聚剂inhibitor (MEHQ,ppm):210
酸度Acidity(以甲基丙烯酸计methacrylic acid,%):0.2