Stabilized 1,1,1-trichloroethane composition
AssigneeThe Dow Chemical Company
InventorsDavid R. Spencer, Wesley L. Archer
Life of this patent
Estimating the term…
Abstract
1,1,1-Trichloroethane is stabilized for use as a replacement for trichloroethylene in vapor degreasing applications by employing from about 3.6 to about 7.6 volume percent based on the total composition of the following components in 1,1,1-trichloroethane: Volume % 1 to 3 1,4-dioxane 1 to 3 t-amyl alcohol 0.2 to 0.6 nitromethane or a mixture of nitromethane and nitroethane containing up to 75 volume percent nitroethane 0.5 to 1 1,2-butylene oxide.
Claims2
1,1,1-Trichloroethane containing as the essential stabilizers from about 3.6 to about 7.6 volume percent based on the total composition volume of a mixture derived from:
- 1 to 3 volume percent 1,4-dioxane
- 1 to 3 volume percent t-amyl alcohol
- 0.5 to 1 volume percent 1,2-butylene oxide, and
- 0.2 to 0.6 volume percent of a nitroalkane
- selected from the group consisting of nitromethane or a mixture of nitromethane and nitroethane containing up to 75 volume percent nitroethane.
Dependencies are inferred from the claim text.