Hazard in hydrosilylation of D4Vi with D4H
Frank D. Mendicino; Curtis L. Schilling
Chemical & Engineering News (12 Sep 1994) Vol. 72, No. 37, pp. 2.
We have read with interest the safety notification by DuPont and GE researchers [Potential hazard in hydrosilylation of D4Vi with D4H (C&EN, April 25, page 4)], and wish to comment that uncontrolled exotherms or explosions have been observed with vinylic silanes or siloxanes as the sole reactant. For example, thermal exposure of commercially available vinyl silanes in closed containers to about 200 C has been noted to cause extremely rapid pressure increases to greater than 500 psig.
Thus, any chemistry involving significant concentrations of vinyl
silicon compounds, that also involves elevated temperatures, as may
occur during exothermic reactions, should be performed using the
page last revised December 7, 1998