Not sure if you can buy it locally; however a good online source is Garden Harvest Supply. I have added a link below.
Diatomaceous Earth, commonly known as DE, can be found in any home improvement store in the pool supplies section. Although it has many other uses, it's commonly used for swimming pool filters.
Diatomaceous Earth is great to use to prevent slugs from eating hosta. You can buy it at gardening stores or swimming pool supply stores. You can also buy it from Amazon.
From a chemical supplier, of course.
Hi, I bought my 35% Food Grade H2O2 from The Oxygen Therapy Program.
If you are looking for Food Grade Mineral Oil then you can get it form STE OIl they are a leading supplier of Mineral oil steoil.com/food-grade
Freund container has them: http://www.freundcontainer.com/product.asp_Q_pn_E_1966_A_cn_E_60 I understand they aren't food grade though:( Someone tell me if they find a food grade container like this.
35 percent Food Grade Hydrogen Peroxide can be found at health food stores, online retailers, or specialty chemical suppliers. Make sure to verify its purity and grade before purchasing for safety and quality purposes.
Food grade hydrogen peroxide can be purchased from specialty health food stores, online suppliers that cater to natural health products, or companies that supply chemicals and laboratory equipment in New Zealand. It is important to ensure that the product is labeled as food grade and intended for human consumption.
http://www.greatlakesgelatin.com sells it, they say you can get it at health food stores, and if you don't need very much gelatin Knox Gelatin is available at supermarkets.
swimming pool supply stores sell it for filter pumps - but avoid breathing the dust - use outdoors only or in cabinets (some lungs disorders have been linked to DE with silica content) - food grade DE is safer and can be bought at commercial restaurant supply stores (used for grease filters) - either type is just as effective on roaches, throw in a dash of boric acid powder (available at pharmacies) for even better effectiveness.
you can get it at Toweski warehouse in Huinghas (Ungerhev City)