Recent Examples of aluminum sulfate from the Web
Gardeners maintain blue color by adding aluminum sulfate, or pink by adding lime (calcium carbonate).
For blue-flowered hydrangeas, add aluminum sulfate to the soil around your bushes now.
Beyond advertising, Royal also worked the halls of state assemblies, trying to persuade local politicians across the country to ban baking powders containing sodium aluminum sulfate on the grounds that they were adulterated with a toxic chemical.
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Britannica.com: Encyclopedia article about aluminum sulfate
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