rilpoint_mw113


align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" Naphthalene
Chemical structure of naphthalene
Ball-and-stick model of naphthalene Space-filling model of naphthalene
align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" General
Chemical name Naphthalene
Other names Tar Camphor, White Tar,
Moth Flakes
Chemical formula C10H8
SMILES c1cccc2c1cccc2
Molar mass 128.17052 g/mol
Appearance White solid crystals/flakes,
strong odor of coal tar
CAS number 91-20-3
align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" Properties
Density 1.14 g/cm³
Solubility in water approximately 30mg/L
Melting point 80.2 °C
Boiling point 218 °C
align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" Hazards
MSDS External MSDS
Main hazards Flammable, sensitizer, possible
carcinogen. Dust can form
explosive mixtures with air
NFPA 704

0
0
0
 
Flash point 79 - 87 °C
Autoignition temperature 525 °C
R/S statement R: 22, 40, 50/53
S: 2, 36/37, 46, 60, 61
RTECS number QJ0525000
align="center" cellspacing="3" style="border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" Except where noted otherwise, data are given for
materials in their standard state (at 25°C, 100 kPa)
Infobox disclaimer and references

为白色鳞片状结晶,具有特殊的煤焦油样气味;熔点80.6℃,沸点219.9℃;难溶于水。萘用于生产染料、树脂、溶剂、炸药、消毒剂、杀虫剂、防腐剂、防蛀剂和碳化照明气,主要由呼吸道和消化道进入人体,引起毒性症状。萘在体内的代谢产物萘醇和萘酿可引起血管内溶血,内脏出血,肝中毒。由于萘可以储存入脂肪中,而脂肪转化成热量的同时可以释放萘引起中毒,所以萘中毒不会在隔绝接触后短时间内消失。