Page:NIOSH Manual of Analytical Methods - 5020.pdf/5

 DIBUTYL PHTHALATE and DI(2-ETHYLHEXYL) PHTHALATE: METHOD 5020, Issue 2, dated 15 August 1992 - Page 5 of 4

Table 1. Properties.

BP kPa COMPOUND AND STRUCTURE

FORMULA

M.W

dibutyl phthalate COO(CH 2)3 CH 3 COO(CH 2)3CH 3

C16H22O 4

278.34 340

di(2-ethylhexyl)phthalate COOCH 2CH(C 2H5)(CH 2)3CH 3 COOCH 2CH(C 2H5)(CH 2)3CH 3

C24H38O 4

390.54 386

a

MP

Density, g/mL

(°C)

(°C)

-37

-50

1.047

0.983

0.17 kPa (1.3 mm Hg) @ 200 °C.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/92

VAPOR PRESSURE,

@ 20 C <0.001 (<0.01)

<0.001 a (<0.01) a

(mm Hg) at 20 °C