Sodium Acetate is a biodegradable de-icer that is safe for plants and animals, it’s also used as a sealant to protect concrete. It is sprayed on streets and planes in a 97% solution but is not marketed for sidewalks and driveways as it tends to produce a slush with oatmeal like texture. It works to about -18 Celsius while rock salt only works to about -6.6 Celsius. Mixing baking soda and vinegar produces sodium acetate and CO2 but household vinegar is mostly water so you get about a 10% sodium acetate solution. For science hot ice experiments, we boil down the solution to get higher concentrations but I was wondering if anyone has used the 10% solution as a sidewalk de-icer?