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Ferrous Sulfate
Products overview:
Ferrous Sulfate Heptahydrate, the color of ferrous sulfate heptahydrate is green, monoclinic crystal or particle, no odor, relative density 1.898, melting point 64ºC. Easily soluble in water, (48.6g/100ml water at 50ºC) red heat decomposition to form ferric trioxide, soluble in glycerol, insoluble in ethanol, corrosive, in dry air will be weathered. At 56.6ºC, the heptahydrate is transformed into tetrachlates, and at 64.6ºC, it becomes monohydrate. At 90ºC, six crystalline water is lost, and at 300ºC, all crystalline water is lost to form anhydrous substance. At red heat, SO2 and SO3 are decomposed and released. It's corrosive. It fluoresces in dry air. The anhydrous substance is a white powder, but when it is mixed with water it turns blue-green.
| roduct Name: | Ferrous Sulfate Heptahydrate | |
| Item | Standard (%) | Result (%) |
| FeSO4·7H2O ≥ | ≥98 | 98.6 |
| Fe (%) ≥ | ≥19.5 | 19.6 |
| As(%)≤ | 0.0002 | 0.0002 |
| Pb(%)≤ | 0.002 | 0.002 |
| WATER INSOLUBLE | ≤0.5% | 0.35% |
| TITANIUM DIOXIDE | ≤0.75% | 0.68% |
| HEAVY METAL | ≤0.0001% | 0.0001% |
| FREE ACID | ≤1% | 0.56% |
| CONCLUSION | QUALIFIED | |
|
Item
|
Ferrous Sulphate Heptahydrate
FeSO4 7H2O
|
Ferrous Sulphate Monohydrate
FeSO4 H2O
|
|
Purity %min
|
98
|
99
|
|
Appearance
|
Green crystal or granular
|
Greywhite powder
|
|
Fe % min
|
19.7
|
30
|
|
Pb ppm max
|
20
|
20
|
|
As ppm max
|
2
|
2
|
|
Cd ppm max
|
5
|
5
|
Application
(1)Water treatment
Ferrous sulfate is used for flocculating and purifying water, and removing phosphate from urban and industrial sewage to prevent eutrophication of water bodies.
(2) Reducing agent
A large amount of ferrous sulfate is used as reducing agent, which mainly reduces chromate in cement.
(3) Colorant
The production of a tannic acid inks and other inks requires ferrous sulfate. Ferrous dye is also used in wood dyed mordant.Ferrous sulfate can be used to stain the concrete into yellow rust, and woodworking ferrous sulphate make the maple dye silver color.
(4) Analytical Chemistry
Ferrous sulfate can be used as a reagent for chromatographic analysis.
Packaging & Shipping:
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Packaging: vacuum packaging/aluminum foil packaging/fake packaging/sealed packaging |
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Transportation: Sea/Air/land transportation. |
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Customs: 100% safe delivery, free re-delivery of any customs problems, guaranteed delivery |
Our Advantages:
Goods quality
1. Product has COA, and HPLC report
2. Our factory is ISO9001 standard
3. We get good feedback from customers around the world
OEM service
1. Add customer's logo
2. Redesign label, packing box as customer's requirement
3. Cap color can be customized
Shipping service
1. Goods shipped in 2-7 days after get payment.
2. Small order ship by express door to door.
3. Goods arrive in 7-20 days
24 hours on-time response
1. Reply your inquiry within 12 hours
2. Keep tracking goods and update information to custom er
3. After-sale service anytime
Feedback from customers:
About Us:
NINGBO HENGHUA TECHNOLOGY DEVELOPMENT CO., LTD. is a professional enterprise engaged in export, the products mainly include chemical products, medical devices, masks, machinery, chemical raw materials, and pharmaceutical intermediates. We have more and more customers from all over the world. We can provide our customers with the best product quality and reasonable price.
Our aim is "service and sincere exchange for your trust and support, mutual benefit and win-win". We look forward to working with friends all over the world! In order to meet the requirements of importers and middlemen, further provide customers with "door-to-door" service. We have our own export service system, can provide customers with the best export route and the lowest price. We have a skilled, operational ability of the team.
In addition, we can find the goods with the lowest price and the best quality for overseas customers, check the goods and reserve shipping space, so as to open up the Chinese market and relieve the import and export.
FAQ
Q1: Can i get some samples?
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Paypal or Escrow(Alibaba).
Q3: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the
samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What's your MOQ?
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5: How about delivery lead time?
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)