| ITEMS | STANDARD | 
| Apperance | white to grey while,odourless,tasteless powder | 
| Apparent density,g/cm3 | 0.25~0.70 | 
| Chromotropic temperature, ℃ | 190~200 | 
| Carbonification temperature, ℃ | 225~230 | 
| Densitykg/L | 1.39 | 
| Relative flammability(700℃ in furnace) | 90+ | 
| Density,kg/L,1% solution | 1.0012 | 
| 5%solution | 1.0117 | 
| 10%solution | 1.0245 | 
| Refractive index | 1.336 | 
| Specific volume of given concentration,mL/g | 0.717~0.767 | 
| Surface tension,,25℃,mN/m | 44~56 | 
| Interfacial tension(in paraffin oil),25℃,mN/m | 18~30 | 
| Fel temperature,℃ | 54~70 | 
| Relative density | 1.29 | 
| Area factor(0.0025mm),m2/kg | 36.7 | 
| water steam,37℃,90%~100%,rh | 520 | 
| oxygen,24℃ | 560 | 
| Tensile strength,24℃,50%rh,MPa | 58.6~61 | 
| Elongation rate,24℃,50%rh,% | 5-10 | 
| UV stability,500rh | excellent | 
| Oil resistance | excellent | 
| UV light transmittance,400nm% | 82 | 
| 290nm% | 34 | 
| 210nm% | 6 | 
| Refractive index | - | 
| Softening point, ℃ | 240 | 
| Melting point℃ | 260 | 
| Carbonification temperature,℃ | 270 |