---
product_id: 158716662
title: "Potassium Nitrate HIGH Purity Milled Reagent Grade 4 LBS Stump Remover and More"
brand: "esks"
price: "€ 106.05"
currency: EUR
in_stock: true
reviews_count: 8
category: "Esks"
url: https://www.desertcart.fi/products/158716662-potassium-nitrate-high-purity-milled-reagent-grade-4-lbs-stump
store_origin: FI
region: Finland
---

# ultra-fine milled powder for precision resealable high-barrier packaging 99.8% ultra-pure reagent grade Potassium Nitrate HIGH Purity Milled Reagent Grade 4 LBS Stump Remover and More

**Brand:** esks
**Price:** € 106.05
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your projects with ultra-pure power!

## Quick Answers

- **What is this?** Potassium Nitrate HIGH Purity Milled Reagent Grade 4 LBS Stump Remover and More by esks
- **How much does it cost?** € 106.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/158716662-potassium-nitrate-high-purity-milled-reagent-grade-4-lbs-stump)

## Best For

- esks enthusiasts

## Why This Product

- Trusted esks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lab-Grade Purity:** Experience 99.8% pure potassium nitrate for flawless experimental results.
- • **Proven Performance:** Highly rated by professionals for reliability and quality in industrial use.
- • **Versatile Oxidizer:** Trusted key ingredient in black powder and stump removal applications.
- • **Resealable Packaging:** Keeps your product fresh and ready, minimizing waste and contamination.
- • **Precision Milled Powder:** Ultra-fine texture ensures consistent performance in pyrotechnics and chemistry.

## Overview

This 4 lb bag of 99.8% pure potassium nitrate is a finely milled, reagent-grade oxidizer ideal for pyrotechnics, black powder manufacture, and stump removal. Packaged in a resealable, high-barrier bag, it ensures long-lasting freshness and consistent quality for professional and experimental use.

## Description

4lb Potassium Nitrate Milled The most extensively employed oxidizer in pyrotechnics. It used for a wide variety of applications, the most important of which is in the manufacture of black powder. Potassium nitrate is a white powder or long needle-like crystals before being milled to a fine powder. *packaging type may vary, but will always be high barrier, high quality material*

Review: stuff works to rot stumps if you can wait a few years - I have a stump less than 6' from my house in an inside corner where the store room joins the utility room. All that to say that it was too close for a stump chipper. The stump was from a 70' red oak that I had cut down because it was too close to the house. I had it cut down ten years ago . A year ago it hadn't rotted out, so I put this stuff on it and it is half gone. Now I need to get the rest out of there. Then eventually I will have a huge hole to fill. Oh well. The never ending story. I didn't have enough to do two much smaller stumps in from from Bradford Pears. Beautiful trees, but derecho bait. I ordered another bag just now. Great stuff. Oh up above it asked me to rate it for sheerness and thickness. Got no idea what they mean, but if they mean granual size it was not dust but pretty fine.
Review: Purity was great I enjoyed working with it happy with the product thank you - High quality nitrate I was really happy with this product good quality everything works great

## Features

- Great for Experiments
- Perfect for Pyrotechnic Use
- Ships in resealable bag
- Ultra fine
- 99.8 percent pure potassium nitrate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| % Assay of Chemical(s) | 99.8 |
| ASIN | B07XP9DHF1 |
| Best Sellers Rank | #126,234 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #113 in Inorganic Reagents |
| Brand | ESKS |
| Brand Name | ESKS |
| Container Type | Bag |
| Customer Reviews | 4.6 out of 5 stars 540 Reviews |
| Item Form | Powder |
| Item Volume | 4 Liters |
| Item Weight | 4 Pounds |
| Manufacturer | ESKS® |
| Package Information | Bag |
| Percentage assay | 99.8 |
| UPC | 689771879369 |
| Unit Count | 1.00 Count |
| Volume | 4 Liters |

## Product Details

- **Brand:** ESKS
- **Item Weight:** 4 Pounds
- **Item Volume:** 4 Liters
- **Percentage assay:** 99.8
- **Package Information:** Bag

## Images

![Potassium Nitrate HIGH Purity Milled Reagent Grade 4 LBS Stump Remover and More - Image 1](https://m.media-amazon.com/images/I/611DkuQ-++L.jpg)

## Questions & Answers

**Q: What is the purity level?**
A: 99.5

**Q: how long does it take to ship?**
A: About 3-6 days until shipment, then it depends on Amazon's shipping department.

**Q: I saw that one reviewer used it as a fertilizer for plants. If you use it as a fertilizer, can I ask how much you use?**
A: No I used it to nitrate papers for making black powder cartridges for a 44 cal cap and ball revolver

**Q: Is this food grade?**
A: No this is lab grade used mainly as oxidiser in fireworks and rocketry or as a reagent

## Customer Reviews

### ⭐⭐⭐⭐⭐ stuff works to rot stumps if you can wait a few years
*by C***W on August 18, 2020*

I have a stump less than 6' from my house in an inside corner where the store room joins the utility room. All that to say that it was too close for a stump chipper. The stump was from a 70' red oak that I had cut down because it was too close to the house. I had it cut down ten years ago . A year ago it hadn't rotted out, so I put this stuff on it and it is half gone. Now I need to get the rest out of there. Then eventually I will have a huge hole to fill. Oh well. The never ending story. I didn't have enough to do two much smaller stumps in from from Bradford Pears. Beautiful trees, but derecho bait. I ordered another bag just now. Great stuff. Oh up above it asked me to rate it for sheerness and thickness. Got no idea what they mean, but if they mean granual size it was not dust but pretty fine.

### ⭐⭐⭐⭐⭐ Purity was great I enjoyed working with it happy with the product thank you
*by D***E on October 25, 2025*

High quality nitrate I was really happy with this product good quality everything works great

### ⭐⭐⭐⭐⭐ Not a huge fan of the packaging, but great quality product.
*by M***A on April 26, 2025*

Let me get this part out; I hate the packaging. Just not a fan as I can’t fold the bags as I do with other products in the P-Tech world. Outside that, great product. You may have to screen a bit to pull clumps or some bigger particle sizes, but for anyone making B/P this is pretty pure. You probably are good without even boiling. Kills the “Tech grade” stuff on the P-Tech market. Try boiling a small batch, as you should with any BP you acquire. Super easy to compare the residual here vs competition and with a decent price. Everyone knows what you end up paying for similar products and how little you get. I’m impressed. Love their Sulfur and air float as well. Their online store has some good products. Glad to see it here.

## Frequently Bought Together

- Potassium Nitrate HIGH Purity Milled Reagent Grade 4 LBS 4 POUNDS
- Duda Energy 1sn 1 lb. Sodium Nitrate 99+% Pure Chile Saltpeter Gold Metal Refining Industrial Grade Glass Pottery Enamels

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-06*