---
title: "Potassium Nitrate — $163K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/potassium-nitrate"
last_updated: "2026-08-11T00:43:02.777Z"
locale: en
meta:
description: "Niche score 56/100 · $163K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $163K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Potassium Nitrate — $163K/yr Amazon US Niche (2026) - Flapen"
---
# **potassium nitrate**
**Worth a look**
Shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 34Growth 63Conversion 43Competition 41Returns 99Price range 82Avg price 94Brand share 50Review moat 91Quality gap 32
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$22.48**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****189.75**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$8.93–$47.61**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+40.8%**
90-day search growth — must beat 0% to launch
**Brand share**
**Good****75%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****3.4%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$163K**
$163K/yr · 211K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, potassium nitrate is a $163K/yr Amazon United States market (211K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Jul. Verdict: Worth a look — 56/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **potassium nitrate market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$180K–$225K**
- units × avg price
- **Conversion rate**
- **3.4%**
- **Avg BSR**
- **#481**
- **Page quality**
- **0%**
- **Prime**
- **44%**
- **Sponsored**
- **25%**
- **Out of stock**
- **11.3%**
- **Avg brand age**
- **74 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**18**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 100%
**Open market**
**19%**
- Outlaw X23% - Generic19% - Haifa17% - Ecoxall9% - ALDON6% - Humco6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +40.8% search growth over the last 90 days.
7K5KSpike '24Holiday '24Spike '25Prime Day '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/potassium-nitrate/trend)
## **Top potassium nitrate search terms**
- **potassium nitrate**157K/yr+43.7%3.5% conv. - **potassium nitrate powder**23K/yr-15.6%4.4% conv. - **potassium perchlorate**13K/yr+135.6%0.2% conv. - **potassium nitrate fertilizer**6K/yr+47.6%3.0% conv. - **saltpeter potassium nitrate**5K/yr+53.4%3.6% conv. - **kno3**5K/yr+33.8%4.2% conv. - **potassium perchlorate powder**3K/yr+150.9%0.5% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/potassium-nitrate/search-terms)
## **Top potassium nitrate products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$8K10%$16K15%$24K20%$33K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Potassium Nitrate - KNO3 Powder - Laboratory Grade - 1 Pound | 1 Lb**Generic**$17.88**4.6★119 rev](https://www.amazon.com/dp/B0CTC6TNHP) [2**Outlaw X 5 Pound Potassium Nitrate High Purity Water Soluble Powder Stump Remover Hydroponics and More**Outlaw X**$26.97**4.8★36 rev](https://www.amazon.com/dp/B0GR1FX2VD) [3**Potassium Nitrate Technical Grade KNO3 4LBs 4 LBs (Granulated)**Haifa**$21.00**4.6★416 rev](https://www.amazon.com/dp/B08Z8K1HNT) [4**Ecoxall Potassium Nitrate Pellets 99% Pure Tree Stump Remover Fertilizer for Plants Grass Indoor and Outdoor Lawn Care Industrial-Grade Prilled 5 lbs**Ecoxall**$29.37**4.4★370 rev](https://www.amazon.com/dp/B0CGY2WN89) [5**Innovating Science - Potassium Nitrate Lab Grade 500g - Versatile Oxidizing Agent for Scientific Industrial and Research Applications**ALDON**$28.11**4.2★5 rev](https://www.amazon.com/dp/B0F1X924DH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Potassium Nitrate Stump Remover - 5lbs - Drill and Pour - Potassium Nitrate Powder**Jackson Chemicals**$28.55**5 rev2mo ago](https://www.amazon.com/dp/B0GZJ6F4L4) [**Outlaw X 5 Pound Potassium Nitrate High Purity Water Soluble Powder Stump Remover Hydroponics and More**Outlaw X**$26.97**36 rev4mo ago](https://www.amazon.com/dp/B0GR1FX2VD) [**Outlaw X Potassium Nitrate High Purity Powder Reagent Grade 10 Pounds for Stump Remover**Outlaw X**$47.61**9 rev4mo ago](https://www.amazon.com/dp/B0GPQWLPZQ) [**Outlaw X 99% Pure Potassium Nitrate Powder Tree Stump Remover Water Soluble 2 lb Net Weight**Outlaw X**$18.82**34 rev8mo ago](https://www.amazon.com/dp/B0FYLKTCXV) [**High-Purity Potassium Nitrate (KNO) 5 lb 99% Refined Multi-Purpose: Stump Remover Industrial Laboratory Hydroponics**Prevegenics**$26.95**12 rev10mo ago](https://www.amazon.com/dp/B0FQK25F7S)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Potassium Nitrate Stump Remover - 5lbs - Drill and Pour - Potassium Nitrate Powder**Jackson Chemicals**$28.55**4.3★**▲ 106%**](https://www.amazon.com/dp/B0GZJ6F4L4) [**Innovating Science - Potassium Nitrate Lab Grade 500g - Versatile Oxidizing Agent for Scientific Industrial and Research Applications**ALDON**$28.11**4.2★**▲ 57%**](https://www.amazon.com/dp/B0F1X924DH) [**Outlaw X 5 Pound Potassium Nitrate High Purity Water Soluble Powder Stump Remover Hydroponics and More**Outlaw X**$26.97**4.8★**▲ 57%**](https://www.amazon.com/dp/B0GR1FX2VD) [**High-Purity Potassium Nitrate (KNO) 5 lb 99% Refined Multi-Purpose: Stump Remover Industrial Laboratory Hydroponics**Prevegenics**$26.95**4.9★**▲ 29%**](https://www.amazon.com/dp/B0FQK25F7S) [**Potassium Nitrate Technical Grade KNO3 4LBs 4 LBs (Milled)**Haifa**$23.02**4.6★**▲ 27%**](https://www.amazon.com/dp/B08Z8HVDP2)
**~~View all trending →~~**
## **What buyers say about potassium nitrate**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**27%
*“As advertised”*
**Plant Growth**20%
*“It boosts their growth”*
**Quality-Overall**13%
*“High quality for any KNO3 needs”*
**Value For Money**11%
*“Good amount”*
**Efficiency**9%
*“Works great”*
**Ease Of Use**3%
*“IF YOU ARE MAKING ROCKET FUEL THIS STUFF IGNIGHTS REALLY EASY”*
**Pureness**3%
*“Other than that it is good stuff as is for purity”*
**Salt Content**3%
*“because I do like salt”*
**Instructions/User Manual/Troubleshooting**3%
*“Thanks for the instructions on the rear”*
**Safety Standards**2%
*“It contains no ammonia so its safe for fish”*
### **What buyers complain about **
**Functionality-Overall**28%
*“It hasnt shown signs of working after 5 days”*
**Instructions/User Manual/Troubleshooting**11%
*“No instruction and product does not work”*
**Wood Quality**11%
*“locust wood is harder than oak”*
**Value For Money**11%
*“Too expensive for tree removal”*
**Calcium**11%
*“seeing a youtube video this product is not 100%KCI it also contains 1 % of Tricalcium Phosphate Tribasic an anti caking substance which I understand may cause damage with a ph meter probe”*
**Breathability**6%
*“.Dont breathe it in it is bad for lungs”*
**Plant Growth**6%
*“Didnt Work on Small 9 Inch Tree Stump”*
**Advertised Vs Actual Product**6%
*“False advertisement 2 NOT 4 lbs”*
### **Top return reasons **
**Advertised Vs Actual Product**19%
**Leak-Proof**16%
**Size-Overall**15%
**Functionality-Overall**9%
**Value For Money**9%
**Instructions/User Manual/Troubleshooting**7%
**Safety Standards**6%
**Ease Of Use**4%
**Product Condition**3%
**Defective Material/Parts**3%
## **Common questions**
- **Is potassium nitrate profitable to sell on Amazon United States?**
- The niche generates $163K/yr across 16 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is +40.8%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the potassium nitrate niche?**
- 11 brands and 18 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in potassium nitrate?**
- Top complaints mined from reviews: Functionality-Overall, Instructions/User Manual/Troubleshooting, Wood Quality. The return rate is 0.2%.
- **When does demand for potassium nitrate peak?**
- Demand peaks in Jul; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the potassium nitrate niche?**
- Listings span $8.93–$47.61; the average listing price is $22.48 (sweet spot $15–$100). The average incumbent carries 190 reviews — the moat a new listing must climb.
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