In apparatus for dispensing a product in spray form by vapour pressure, the product is either a concentration of at least 75 per cent by volume of a saturated aliphatic monohydric alcohol containing not more than three carbon atoms, e.g., methanol, ethanol, isopropanol or a substance that is soluble in or miscible with this alcohol. The vaporizing constituent comprises a fluorinated, or fluorinated and chlorinated, low molecular weight saturated aliphatic hydrocarbon containing not more than two...

The stability of aqueous suspensions of penicillin compounds such as procaine penicillin which according to the parent Specification is increased by removing the atmospheric oxygen from the unfilled space in the containers in which the suspensions are stored before, during or after the suspensions are filled into the containers is further improved by the use of a butyl rubber cover for closing the container. The cover is in the usual form of a tight rubber cap, or a rubber disc or a rubber stopp...

In the treatment of hydrocarbon feed stocks with solutions of aryl sulphonic acids in organic solvents to remove sulphur, remove colour, or enhance the octane member, the corrosive action of the solutions is prevented by adding a small quantity of arsenic, as the element or a compound, e.g. sodium meta-arsenite, arsenic trioxide or arsenic acid. Generally .013-.0013 gram moles of arsenic per 100 g. of solution are used, i.e. less than 1 per cent by weight. Benzene, toluene, and naphthalene sulph...