Method and article for dispersing a volatilizable compound in an environment

A method of dispersing a volatilizable substance into an environment comprising exposing a solid unitary article consisting essentially of

• from about 25 to 30 wt. % initially particulate calcium sulfate having a loose bulk density of from about 0.85 to 0.95 gm/cm.sup.3 ;
• about 25 to 30 wt. % initially particulate calcium sulfate having a loose bulk density of from about 0.70 to 0.75 gm/cm.sup.3 ;
• about 2 to 4 wt. % initially particulate hydrous calcium sulfate having a loose bulk density of from about 0.75 to 0.85 gm/cm.sup.3 ;
• about 0.5 to 1 wt. % emulsifier;
• about 6 to 7 wt. % volatilizable compound;
• and
• about 30 to 35 wt. % water to said environment.

A process of making a solid unitary article for dispersing a volatilizable compound comprising the steps of:

• (a) Combining from about 0.5 to 1 wt. % emulsifier and from about 6 to 7 wt. % of a volatilizable compound;
• (b) Agitating and mixing said combined emulsifier and volatilizable compound until a uniform emulsion is formed;
• (c) Combining with agitation the emulsion of step (b) with from about 30 to 35 wt. % water;
• (d) Adding with agitation from about 2 to 4 wt. % particulate hydrous calcium sulfate having a loose bulk density of from about 0.75 to 0.85 gm/cm.sup.3 to the mixture of step (c);
• (e) Adding with agitation to the mixture of step (d) from about 25 to 30 wt. % particulate calcium sulfate having a loose bulk density of from about 0.85 to 0.95 gm/cm.sup.3, and from about 25 to 30 wt. % particulate calcium sulfate having a loose bulk density of from about 0.70 to 0.75 gm/cm.sup.3 ;
• (f) Agitating the mixture of step (e) until a smooth slurry is formed;
• (g) Placing said slurry in a molding zone;
• and
• (h) Allowing said slurry to set in said molding zone until a solid unitary article is formed.

A kit for effecting dispersal of a volatilizable compound into an environment comprising:

• (1) a solid unitary volatilizable compound dispersing article consisting essentially of
• from about 25 to 30 wt. % initially particulate calcium sulfate having a loose bulk density of from about 0.85 to 0.95 gm/cm.sup.3 ;
• about 25 to 30 wt. % initially particulate calcium sulfate having a loose bulk density of from about 0.70 to 0.75 gm/cm.sup.3 ;
• about 2 to 4 wt. % initially particulate hydrous calcium sulfate having a loose bulk density of from about 0.75 to 0.85 gm/cm.sup.3 ;
• about 0.5 to 1 wt. % emulsifier;
• about 6 to 7 wt. % volatilizable compound;
• and
• about 30 to 35 wt. % water;
• and
• (2) package means slightly larger than saidarticle, said means encasing said article, said means being sealed and being made of a flexible, tearable barrier film which seals upon the application of heat and pressure so that the envelope may be opened by being torn and being substantially unaffected by and substantially impermeable to said volatilizable compound and the vapors thereof, and being of a strength to resist the vapor pressure thereof.