TLVTN	OSHA 50ppm,200mg/m3; ACGIH 25ppm,100mg/m3
Monitor Method	gas chromatography,Furfural colorimetric method,Solvent desorption - gas chromatography
Engineering Control	Airtight operation,Note ventilation.
Respiratory protection	When touch the steam,Wear self-priming filter brand-newly type gas masks
eye protection	Wear safety chemical glasses
Body protection	Wear anti-static work clothes
Hand protection	Wear rubber and oil resistance gloves
Other protection	Do not smoking on the sport, Note personal clean sanitation, Avoid long-term repeated contact

Major content	Content, Special second grade≥99.5%,qualified product≥99.0%.
Appearance and properties	Colorless or light yellow transparent liquid,strong irritating smell.
melting point(°C	-45
boiling point (°C)	115.6
relative density	0.95
saturated vapor pressure	1.33(38.7°C)
critical temperature	385.9
critical pressue (MPa	4.06
flash(ing) point (°C)	43
ignition temperature (°C)	420

cyclohexanone 99.9%

acid 99.9%