Dimethyl maleate

Vapour pressure

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

vapour pressure

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

other information

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Data from peer-reviewed handbook or collection of data; accepted calculation method

Principles of method if other than guideline:

Yaws Chemical Properties Handbook

GLP compliance:

not specified

Type of method:

other: estimated

Temp.:

25 °C

Vapour pressure:

0.023 kPa

The value for 25 °C (298.15 K) is calculated with the following equation  (in appendix C: Coefficients for vapour pressure equation):
log P = A + B/T + C log T + D T + E T² (P - mm Hg, T - K),
where A =   -1.9173
      B = -  3.4310E+03
      C = 7.0795E+00
      D = - 1.9039E-02
      E = 9.2324E-06
  log P = -  0.7629      P = 0.1726 (mm Hg)

Reference 2

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

other information

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Data from peer-reviewed handbook or collection of data

Principles of method if other than guideline:

secondary peer reviewed source, valid collection of data

GLP compliance:

not specified

Temp.:

25 °C

Vapour pressure:

66.7 Pa

Remarks on result:

other: =0.667 hPa=0.0667 kPa

no further information

Description of key information

At 25°C the reported vapour pressures are 23 Pa and 66,7 Pa.