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Thought it's be nice to compose a list of alternative sources for some water adjustment salts/minerals as I have had some difficulty in sourcing much of these from other than on-line HBS. I am curious if anyone knows of said sources.
In my search I did come across a FAQ that states the Crayola Anti-Dust chalk is compressed Calcium Carbonate (CaCO3). And that the non-dust free (sidewalk) versions are made of compressed Gypsum.
Gypsum (CaSO4: Crayola Sidewalk Chalk (White)
Cal. Carb (CaCO3): Crayola Anti-Dust Chalk (White)
Also as most know,
MgSO4 = Epsom Salt
NaHCO3 = Baking Soda
Anyone got a source for Calcium Chloride?
In my search I did come across a FAQ that states the Crayola Anti-Dust chalk is compressed Calcium Carbonate (CaCO3). And that the non-dust free (sidewalk) versions are made of compressed Gypsum.
Gypsum (CaSO4: Crayola Sidewalk Chalk (White)
Cal. Carb (CaCO3): Crayola Anti-Dust Chalk (White)
Also as most know,
MgSO4 = Epsom Salt
NaHCO3 = Baking Soda
Anyone got a source for Calcium Chloride?