

⚡ Ignite your projects with purity and precision!
ESKS® 5lb Potassium Nitrate is a high-purity (99%+) reagent-grade powder, water soluble and packaged in a resealable zipper bag to maintain freshness. Widely used in pyrotechnics, black powder production, hydroponics, and stump removal, this versatile oxidizer is trusted by professionals for consistent performance and secure shipping.
| ASIN | B094JZSN51 |
| Best Sellers Rank | #8,340 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Inorganic Reagents |
| Date First Available | May 10, 2021 |
| Item Form | Powder |
| Item Weight | 5 pounds |
| Item model number | 5lb Pot nit |
| Manufacturer | ESKS® |
| UPC | 689771878768 |
D**J
Quality KNO3
They started double bagging it due to complaints of leaks. I've ordered twice now and haven't lost a single granule. Much better shipping process. Quality oxidizer. Popular for sugar rockets. Granules large like sugar. Needs to be ground to a confectionery sugar consistency for r-candy mixes. I transfer it into a 4 quart container using a metal 1" funnel. You can also find the funnel on Amazon. SDS stickers really help in labeling all of your chemicals. This KNO3 doesn't have to be water boiled as it's already 99% pure but it is possible to refine it to a higher purity if you want a little extra impulse. This is my go to supplier for sugar and BP rocket KNO3.
M**T
Works great
Works great for nitrating paper for blackpowder.
C**N
High Quality
A+
C**Y
Good for rocket motors and smoke grenades
I use this for making rocket motors and smoke grenades, and it’s good enough for those purposes. Can’t beat the price for such a large amount.
M**.
Seems Very Pure!
Bought this at first to make some antique muzzle loading propellant. I boiled it the first time to make sure of its purity and found no need to boil it for my next batch, as it showed “nearly” no impurities. Then since the price is fair, I’ve decided to buy another 10 pounds to get rid of all my tree stumps. My property was polluted with black walnut trees, and if you ever cut one down, you know that 5-6 new trees start to develop from that same one stump! I tried stump remover from Lowe’s before and it was marginal at best. With this brand being so pure and it is already working wonders on the test stump I’ve put it in, then, (Drilled a bunch of 7/16’ holes in it first) this should end my stump and regrowth problems!
Y**9
It is what it is
If it is milled it is very short milling. Plus no discount on shipping.
A**R
dissolves immediately, beginner friendly
This is an excellent salt fertilizer that I use frequently to make custom fertilizer solutions with. It's ver beginner friendly. The best thing about this particular potassium nitrate was that there wrecked NO CLUMPS and it DISSOLVES IMMEDIATELY, which is exactly what you want in a dry salt if you're a beginner amateur chemist ; )
K**S
Mixing powder
Great product
Trustpilot
5 days ago
1 day ago