---
product_id: 50382163
title: "Lancelot Ammonium Sulphamate 1Kg"
brand: "lancelot"
price: "307 kr"
currency: DKK
in_stock: false
reviews_count: 8
url: https://www.desertcart.dk/products/50382163-lancelot-ammonium-sulphamate-1kg
store_origin: DK
region: Denmark
---

# Accelerates compost breakdown Flame retardant power Lab-grade reagent purity Lancelot Ammonium Sulphamate 1Kg

**Brand:** lancelot
**Price:** 307 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Turn up the heat on composting and fire safety with Lancelot Ammonium Sulphamate!

## Quick Answers

- **What is this?** Lancelot Ammonium Sulphamate 1Kg by lancelot
- **How much does it cost?** 307 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/50382163-lancelot-ammonium-sulphamate-1kg)

## Best For

- lancelot enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Lab Reagent:** Trusted for precision in laboratory and electro-plating applications, ensuring consistent results.
- • **Multi-Industry Utility:** From printing to plasticising, this chemical adapts to diverse professional needs with reliability.
- • **Rapid Compost Accelerator:** Breaks down tough woody weeds fast, turning waste into rich compost in months, not years.
- • **Eco-conscious Weed Control:** Powerful herbicide action outside the EU, targeting stubborn weeds with fast visible effects.
- • **Industrial Flame Retardant:** Effectively reduces fire risk on wood and stumps, protecting your property and peace of mind.

## Overview

Lancelot Ammonium Sulphamate 1Kg is a multi-functional chemical used primarily as a flame retardant and compost accelerator, especially effective on tough woody weeds. It also serves as a reagent in labs, a plasticiser, and finds applications in printing and electro-plating industries. While banned as a herbicide in the EU, it remains a potent weed control agent elsewhere. Packaged conveniently for professional and industrial use, it transforms waste management and safety protocols with proven efficiency.

## Description

Ammonium sulphamate is used: # As a flame retardant # Ammonium sulfamate is used as a compost accelerator. It is especially effective in breaking down the tougher and woodier weeds put onto the compost heap. # As a reagent in laboratories. # As a plasticiser # Used in the printing industry # In electro-plating # As a herbicide (outside the EU) - Ammonium sulphamate was considered to be particularly useful in controlling tough woody weeds, tree stumps and brambles before this application became unlicensed within the European Union in 2008. Its availability and use as a compost accelerator is unaffected by the EUs pesticide legislation. To read more on this subject visit wikipedia.To use as a compost accelerator: Apply either by adding crystals directly onto compost or as a solution containing 200g of ammonium sulphate per litre of water. Treated compost should not be used for at least 3 months to allow sufficient time for the ammonium sulphamate to break down. For improving the rotting of dead tree stumps drill holes in the stump before applying the crystals.

Review: Really good. - I used this on a copper beech tree stump to make sure the stump wouldnt catch fire after the tree was felled. I drilled some holes in the top cut surface where the risk of combustion was probably greatest and filled the holes with the material and added some water to be really sure. I then covered the stump with earth. A few years later the fire risk seems to have passed as the stump is niw completely rotten to mush so it probably cant catch fire which is a relief and the fire retardent has worked a treat.
Review: Return of the Horsetail. Revenge of the Weedkiller - I mix 140g of granules and a squirt of washing up liquid into a 750ml (re-labelled) spray bottle. This kills off the horsetail growing in my compost heap within four days. As soon as it sticks it's ugly little head into the daylight it gets a quick shower of the mix. I have no idea how deep this liquid death reaches into the horsetail's system but after digging down a bit one root looked to be dead to about two inches down. Not bad for only being sprayed a week earlier. I was hand digging every shoot out but this has the same effect whilst giving the plant a chemical kicking. I've used Gallup 360 (glyphosate) in the past and it does work and it has come back much weaker than last year. However it takes weeks to work and takes a season to show you how effective it has been. This stuff shows its working within days. Keep in mind that you cannot replant after using this chemical for one - three months dependant on your soil type. I have a heavy clay soil so as it's June now I wont be digging over or replanting until mid Autumn. Update- 3 months later and I think I've won the battle. Spraying as soon as the plant showed itself and adding lime and feed to my soil has seen me horsetail free for the last 2 weeks. We usually have a warmish September so we'll see if I have spoken to soon. However I forked through the soil patch that was badly infested with it and there was little to any root system left.

## Features

- Harmful if swallowed.
- Use biocides safely. Always read the label and product information before use.
- As a flame retardant
- Ammonium sulphamate is used as a compost accelerator. It is especially effective in breaking down the tougher and woodier weeds put onto the compost heap.
- It is used as a reagent in laboratories
- Used as a plasticiser
- It is not approved for use in the UK or european union as a herbicide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 26.29 x 18.67 x 5.46 cm; 1 kg |
| Manufacturer | R&D Laboratories |
| ASIN | B004MMOEH2 |

## Images

![Lancelot Ammonium Sulphamate 1Kg - Image 1](https://m.media-amazon.com/images/I/71hC+0lu-UL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really good.
*by T***R on 5 February 2025*

I used this on a copper beech tree stump to make sure the stump wouldnt catch fire after the tree was felled. I drilled some holes in the top cut surface where the risk of combustion was probably greatest and filled the holes with the material and added some water to be really sure. I then covered the stump with earth. A few years later the fire risk seems to have passed as the stump is niw completely rotten to mush so it probably cant catch fire which is a relief and the fire retardent has worked a treat.

### ⭐⭐⭐⭐⭐ Return of the Horsetail. Revenge of the Weedkiller
*by D***C on 4 June 2016*

I mix 140g of granules and a squirt of washing up liquid into a 750ml (re-labelled) spray bottle. This kills off the horsetail growing in my compost heap within four days. As soon as it sticks it's ugly little head into the daylight it gets a quick shower of the mix. I have no idea how deep this liquid death reaches into the horsetail's system but after digging down a bit one root looked to be dead to about two inches down. Not bad for only being sprayed a week earlier. I was hand digging every shoot out but this has the same effect whilst giving the plant a chemical kicking. I've used Gallup 360 (glyphosate) in the past and it does work and it has come back much weaker than last year. However it takes weeks to work and takes a season to show you how effective it has been. This stuff shows its working within days. Keep in mind that you cannot replant after using this chemical for one - three months dependant on your soil type. I have a heavy clay soil so as it's June now I wont be digging over or replanting until mid Autumn. Update- 3 months later and I think I've won the battle. Spraying as soon as the plant showed itself and adding lime and feed to my soil has seen me horsetail free for the last 2 weeks. We usually have a warmish September so we'll see if I have spoken to soon. However I forked through the soil patch that was badly infested with it and there was little to any root system left.

### ⭐⭐⭐⭐⭐ Worked perfectly for killing weeds in my gar— compost heap.
*by C***S on 26 August 2024*

My compost heap was overrun with weeds and I used this ammonium sulphamate to eradicate them. I noticed visible results after 3 or 4 sunny days.

## Frequently Bought Together

- Lancelot Ammonium Sulphamate 1Kg
- Spear & Jackson 5LPAPS 5 Litre Pump Action Pressure Sprayer

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-25*