Hot
This is currently popular on OnBuy.
IRON SULPHATE 1kg - 99% Technical Grade Ferrous Sulphate
In stock
Smart shoppers OnBuy it!
- Earn Cashback on every purchase – spend it instantly on your next order
- Free delivery – on millions of items across the site
- Customers love us – 128,000 Trustpilot reviews and an 'Excellent' rating
£6.49
FREE Delivery
1%
What is instant Cashback?
Learn More
Interest-free payment options available
See full product description & details
Delivery: Standard (Free) | Mon 6th - Tue 7th Jul
Sold by: Intra Laboratories, there is 1 other seller
Returns: 60 days
180-day payment protection
Most Popular in Fertilisers & Plant Food
Hot
Hot
![Doff Orchid Drip Feeder 10 Pack [DP1044]](https://cdn.onbuy.com/product/a0c6a683f6584b038ace6db1b2344698/500-500/p68zvh6.jpg)
![Vitax Tree Fern & Palm Feed 500ml [5TF500]](https://cdn.onbuy.com/product/a0c45c609eb34c4e911756091149066d/500-500/p68zz28.jpg)
Hot
![Vitax Conifer & Shrub 2.5kg [6CS23]](https://cdn.onbuy.com/product/a0c18114075e4155aa67555865d2bfc2/500-500/p68zwqg.jpg)
Description & Details
IRON SULPHATE 1kg - 99% Technical Grade Ferrous Sulphate Description
Iron (II) Sulphate Heptahydrate - 99% Pure Technical Grade Powder
Quick Dissolving Powder
What is Iron Sulphate
Iron Sulphate is a compound containing an Iron atom and Sulphate molecule bonded together with an ionic bond. Iron Sulphate Anhydrous itself is rare and so its is mainly found in a hydrated form; the most common being heptahydrate with a blue/green crystal appearance.
Iron Sulphate Properties
At room temperature Iron (II) Sulphate Heptahydrate appears as a blue/green crystalline solid. Dehydration happens at 70oC and complete decomposition happens at 400oC. Iron (II) Sulphate Heptahydrate dissolves in water and the molecular formula for Iron (II) Sulphate Heptahydrate is FeSO4.7H2O.
Applications for Iron Sulphate
Moss Killer / Control - Iron (II) Sulphate is very effective at controlling moss on your lawn. To use, apply 5-10g of solid crystals direct to each 1m2 of Lawn. Only apply solid product when its raining or about to rain; if not dissolve 5-10g in 1 litre of water and apply.
Lawn Conditioning - Citric Iron (II) Sulphate can be used to condition lawns. Start by testing a small part of your lawn to test for adverse effects, by applying a 1% solution (1g per litre). If the result is positive, continue applying a 1% solution. If the desired effect is not realised, try increasing the concentration of your solution. Please be careful not to over administer as this could kill the grass.
Acidify Soil - Iron (II) Sulphate can also be used to increase the acidity of your soil for ericaceous plants. To use, apply 20-40g dissolved in water per square meter.
Details
| OPC | P8RVKKS |
|---|---|
| Brand | Intralabs |
| Codes | 5301211733066 (EAN) |
| Rank | #35 Fertilisers & Plant Food |
| #44 Plant Care | |
| #703 Garden & Outdoor Living |
Compare Sellers for IRON SULPHATE 1kg - 99% Technical Grade Ferrous Sulphate
- New from £6.49
| Seller | Ratings | Warranty | Returns | Price | Delivery | Total | Quantity |
|---|---|---|---|---|---|---|---|
| (56 reviews) | - |
60 Days
Free Returns Yes
|
£6.49
|
+Fast & Free Delivery
Est. Delivery:
6th-7th Jul
|
£6.49
Recommended
We recommend listings based on a combination of price, delivery time, quality of seller reviews and other factors
|
||
| (961 reviews) | - |
30 Days
Free Returns No
|
£16.95
|
+Fast & Free Delivery
Est. Delivery:
6th-7th Jul
|
£16.95
|
Reviews of IRON SULPHATE 1kg - 99% Technical Grade Ferrous Sulphate
All OnBuy Reviews are Verified Reviews
Overall Rating:
Highest Rated Review
Posted
01/06/2026
Sold By Intra Laboratories
Extremely happy with this product, great price and great service
Filter Reviews
Extremely happy with this product, great price and great service
Earn as you shop with instant Cashback on everything.
No catch, no cost
- Paid into your OnBuy account
- Spend it on your next purchase
- Save it or withdraw it
Become a Cashback VIP
Just 1 purchase unlocks bigger deals & rates