Duda Energy 3 lb bag yellow ground sulfur powder, 99+% pure elemental commercial grade brimstone
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3 lb Ground Yellow Sulfur Powder Commercial Grade Pure Elemental Commercial Flour No Additives Brimstone

Key item features

  • Pure Composition: This product is 99.5+% pure elemental sulfur, also known as Brimstone, with a chemical formula of S8 and CAS# 7704-34-9.
  • Fine Grind: It is a finely ground sulfur powder, with 60-80% catching by a #200 mesh (~74 micron), and the remainder being even finer.
  • Commercial Grade: Classified as commercial grade, this sulfur is recovered during gas manufacturing, cooled into flakes, and then ground into powder.
  • Agricultural Uses: Widely used in agriculture as a fertilizer or soil treatment, it helps adjust soil pH, benefiting plants like blueberries.
  • Pest Repellent: Effective for pest control, it can be spread in gardens to deter snakes and applied to pets to repel ticks.
  • Insoluble Nature: Sulfur is insoluble in water, meaning only mixtures can be created, not true solutions.
  • Low Flammability: It possesses a low flammability rating, comparable to wood, and requires significant oxygen or specific burners for sustained burning.
  • Sulfur Dioxide: When burned, it produces sulfur dioxide, a poisonous gas historically used for pest removal but harmful in large quantities.
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4.597590361445783 stars out of 5, based on 415 seller reviews(4.6)
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4.6 out of 5 stars
stars66 ratings26 reviews
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Showing 1-3 of 26 reviews

Dec 28, 2025
Tim
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Size: 5 lbs
Count per pack: 1
Sold and shipped byDuda Energy
5 out of 5 stars review

Verified Purchase

Rabbit repellent

I'm having an issue with rabbits eating my shrubs and other plants. I've tried everything. Have been looking for something to repel the critters, not hurt them. Just a tiny amout of this product is making a big difference! It's also good for the soil..

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Mar 19, 2026
Brenda
Item details
Size: 5 lbs
Count per pack: 1
Sold and shipped byDuda Energy
5 out of 5 stars review

Verified Purchase

When I was a little girl, my dad used to use sulphur to keep snakes and other bugs away. So I decided to try it. So far we haven't seen any bugs, and hopefully, we won't see any snakes. The product is fantastic at the moment.

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May 23, 2025
Christine
Item details
Size: 50 lb pail
Count per pack: 1
Sold and shipped byDuda Energy
5 out of 5 stars review

Verified Purchase

I loved that it came in a plastic can so we could use part and reseal it. It was delivered sooner than they initially said, by several days. This made it easier to apply it according to changing weather.

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