The polaroid developer is in a pod that contains a thickener, carboxy methyl cellulose or the equivalent, and sodium or potassium hydroxide at a pH of about 12 - 14. I don't know the rest of the ingredients, but one of them is a silver halide solvent to assist in nucleation and formation of the positive image from the negative original.
This is probably spelled out in the original patents by Land.
PE |