Gas generant composition with coolant

A method of generating a gas with low-solids, the method comprising:

• preparing a mixture comprising a fuel and an oxidizer, wherein the mixture is within about 4 percent of stoichiometric balance;
• mixing the oxidizer-fuel mixture with a cupric oxalate hemi-hydrate coolant;
• and
• combusting the mixture of oxidizer, fuel, and coolant, thereby producing a gas and no more than about 0.085 cubic centimeters of solids per gram of gas generating composition on combustion;
• wherein
• the fuel is selected from the group consisting of guanidine nitrate, nitroguanidine, cellulose, cellulose acetate, hexamine, 5 amino-tetrazole, 5 nitro-uracil, guanidine salt of 5 nitro-uracil, and mixtures thereof;
• and
• the oxidizer is selected from the group consisting of ceric ammonium nitrate, strontium nitrate, basic copper nitrate, a mixture of ammonium perchlorate and at least one alkali metal salt, and mixtures thereof.