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Specifications

CAS No.:26471-62-5          Place of Origin: Tianjin - China mainland
Purity :99.7MIN 99.7%MIN      
Specifications:TDI is an aromatic isocyanate, a precursor to Polyurethanes (PU) that mostly used for making flexible foams.
Clear,colorless to pale yellow liquid with a sweet, fruity,pungent odor.
ITEM SPECIFCATION
UNIT
VALUE
REMARKS
PURITY
2.4-ISOMER
%
99.7MIN
99.75
2.6-ISOMER
%
80+/-1
80.7
ACIDITY
%
20 +/-1
19.8
ACIDITY
%(HCL)
0.0015MAX
0.0015
HYDROLYZABLE
CHLORIDE
%
0.004MAX
0.0035
TOTAL CHLORIDE
%
0.018MAX
0.017
COLOR
APHA
15MAX
14.8
 
PHYSICAL PROPERTIES
MOLECULAR WEIGHT
174.2
VISCOSITY(cps, at25)
3 - 6
SPECIFIC GRAVITY
1.22
BOILING POINT()
251
FLASH POINT ()
135
MELTING POINT 90()
11.5 – 13.5
VAPOR PRESSURE (mm H20 at 25)
0.03
VAPOR DENSITY (air=1)
6.0
COMMENT:QUALIFIED.THE ITEM TESTED IS IN ACCORDANCE WITH THE NATIONAL STANDARD OF P.R. OF CHINA COMPLETELY