Ferrous Sulfate Heptahydrate, 20% Water Soluble Iron (Fe). Derived from: Ferrous Sulfate. (2 LB) : �鶹��.ca: Industrial & Scientific

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Ferrous Sulfate Heptahydrate, 20% Water Soluble Iron (Fe). Derived from: Ferrous Sulfate. (2 LB)

Brand: M.M BASICS

163 ratings

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Brand	M.M BASICS
Item weight	907.18 Grams
Molecular weight	319.85
Percentage assay	20
Manufacturer	M.M BASICS
UPC	656382969192

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Product details

Parcel Dimensions ‏ : ‎ 21.5 x 11.1 x 6.6 cm; 907.18 g
Date First Available ‏ : ‎ May 30 2022
Manufacturer ‏ : ‎ M.M BASICS
Place of Business ‏ : ‎ n.a
ASIN ‏ : ‎ B0B2MRFKXX

�鶹�� Rank: #469 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
- #5 in Analytical Reagents

Customer Reviews:
163 ratings

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Customer reviews

163 global ratings

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Customers like the product for its moss killing capabilities. They mention it works well for getting rid of moss on roof shingles and the lawn. Customers also say it's easy to apply and mix.

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Moss killing Ease of use

29 customers mention "Moss killing"29 positive0 negative

Customers are satisfied with the moss killing product. They mention it works well to kill moss quickly and takes about 20 minutes to turn the moss black. Some say it works great for getting rid of moss on roof shingles as well as the lawn.

"...Ferrous sulphate, 5 Tblespoons in 20 gallons of water, killed the moss in a couple of days!..." Read more

"...1/4 cup to a gallon of water and use a handheld sprayer. Kills moss in the lawn in just a few hours, then the work begins taking out the dead stuff...." Read more

"Seems to work well to kill moss quickly. The moss started turning black within a couple of hours...." Read more

"...What a great product, I would give it ten stars if I could" Read more

5 customers mention "Ease of use"5 positive0 negative

Customers like the ease of use of the product. They mention it's easy to apply, mixes well, and works in under 3 hours.

"easy to use" Read more

"...This stuff is easy to apply, mixes great and works in under 3 hours!..." Read more

"Short & simple - is working!" Read more

"Arrived quickly and was easy to use...." Read more

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Top reviews from Canada

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DaninVan
Moss Killer!
Reviewed in Canada on April 25, 2025
Verified Purchase

I use it for killing moss in the lawn. Here in the Pacific North-West, our warm wet Winters are ideal for moss to grow and spread. One application of the Ferrous sulphate, 5 Tblespoons in 20 gallons of water, killed the moss in a couple of days!
The price was excellent and delivery was in three days.

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Hailey
No more moss
Reviewed in Canada on April 7, 2025
Verified Purchase
I like that I can mix just what I need. 1/4 cup to a gallon of water and use a handheld sprayer. Kills moss in the lawn in just a few hours, then the work begins taking out the dead stuff. Make sure you mix it in a separate bucket and then strain into the sprayer as there are few undissolved remnants that you don't want clogging your sprayer. Keep the leftover crystals in an airtight container for later use, I find the premixed liquid solutions rusting inside the container once opened.

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5 people found this helpful

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Alan Cobden
Seems to work quickly to kill moss... but sediment in it plugged my sprayer nozzle a couple of times
Reviewed in Canada on April 3, 2025
Verified Purchase
Seems to work well to kill moss quickly. The moss started turning black within a couple of hours. I mixed it near the lower end of the recommended range - I used11 tablespoons per US gal.

The only issue I have with it is the amount of non-soluble material in it which can sometimes plug the sprayer nozzle. The pic attached shows what was left in the bottom of my sprayer after mixing 11 tablespoons with 1 US gal of water. I even tried using very hot water to see if that would dissolve everything, but it didn't.

I would rate it 5 stars if all dissolved properly.

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Alan Cobden

Seems to work quickly to kill moss... but sediment in it plugged my sprayer nozzle a couple of times

Reviewed in Canada on April 3, 2025
Seems to work well to kill moss quickly. The moss started turning black within a couple of hours. I mixed it near the lower end of the recommended range - I used11 tablespoons per US gal.

The only issue I have with it is the amount of non-soluble material in it which can sometimes plug the sprayer nozzle. The pic attached shows what was left in the bottom of my sprayer after mixing 11 tablespoons with 1 US gal of water. I even tried using very hot water to see if that would dissolve everything, but it didn't.

I would rate it 5 stars if all dissolved properly.

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One person found this helpful

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�鶹�� Customer
THIS PRODUCT WORKS
Reviewed in Canada on April 12, 2025
Verified Purchase
I mixed this according to the directions to kill a large amount of moss on my lawn.
Unfortunately it rained after about an hour after being applied.
The rain lasted less than half an hour and to my surprise I got up the next day and the moss was black everywhere.
What a great product, I would give it ten stars if I could

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2 people found this helpful

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�鶹�� Customer
Great moss eliminator
Reviewed in Canada on May 10, 2025
Verified Purchase
Kills moss almost instantly

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Toolbelt
Less coverage than described
Reviewed in Canada on April 10, 2025
Verified Purchase
The package in the photo states 5-10 tsp per gallon for moss control, but the package that arrived reads 5-10 tbsp per gallon, which is correct according to the seller. So the actual coverage is approx 250% less than the photo states, which means the cost per area covered is actually 250% greater. Basically a 2 lb bag will fill two garden sprayers and only cover a 20' x 25' area which means you would need 4 bags for a typical lawn.

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3 people found this helpful

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Martine Stevenson
Incredible product
Reviewed in Canada on April 29, 2025
Verified Purchase
I finally found something that works 100 percent.

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Sandy Eastwood
Moss destroyer
Reviewed in Canada on April 18, 2025
Verified Purchase
This really really kills moss. 60 ml per gallon of water in a sprayer, and the moss dies and goes black in a few hours.

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One person found this helpful

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Ferrous Sulfate Heptahydrate, 20% Water Soluble Iron (Fe). Derived from: Ferrous Sulfate. (2 LB)

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