What is the active ingredient in this product?

No idea but I've used it for decades with no mask or gloves and no problems at all It seems like many people are illogically afraid of chemicals especially the crazies in California where everything causes cancer.

How much to use in diswasher

Per labeled directions, add 1/2 cup of Iron OUT to EMPTY machine. Run machine through normal cycle using only water. Repeat as needed.

Does this product work on rust stains in granite?

Yes. I have to let it soak for 25 hours in a bucket outside (it smell awful) but it works!!!!

Thank you for reaching out to Summit Brands regarding our product, Iron OUT Powder. This highly effective rust stain remover is formulated to remove heavy-duty rust stains from most surfaces in and around the home, like sinks, toilets, showers, appliances, concrete, white laundry and more. Our product is not recommended for use on carpeting, as it could permanently remove dyes from the carpeting. Iron OUT Spray can be used to remove rust stains from carpeting, however, you should pretest first in a hidden area to determine the safety of using on each particular carpeting application, and if found safe to use, then please follow labeled directions.

ASIN	B00FX956U2
Best Sellers Rank	#212,280 in Health & Household ( See Top 100 in Health & Household ) #92 in Household Lime & Rust Removers
Customer Reviews	4.6 4.6 out of 5 stars (356)
Date First Available	May 9, 2013
Is Discontinued By Manufacturer	No
Item model number	IO30N
Manufacturer	Summit Brands
Product Dimensions	9.31 x 6.75 x 9.31 inches; 5.67 Pounds

Iron OUT Powder Rust Stain Remover, Remove and Prevent Rust Stains in Bathrooms, Kitchens, Appliances, Laundry, and Outdoors, 1 Pound 12 Ounce, Pack of 6

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