Ferrous Ammonium Sulphate (Mohr's Salt) Supplier in Malaysia
- Also known as
- Ferrous Ammonium Sulfate
- Mohr's Salt
- Ammonium iron(II) Sulphate
- Ammonium iron(II) Sulfate
Ferrous ammonium sulphate supplier for laboratory, water-analysis and process buyers in Malaysia. Also called Mohr's salt, ammonium iron(II) sulphate and ferrous ammonium sulfate, this iron(II) ammonium double salt is selected for redox titration, COD work, standardisation and reducing-agent duties.
Commercial enquiries commonly cover analytical reagent hexahydrate crystals, laboratory reagent grades and technical crystalline material. The usual form is pale green to blue-green hexahydrate crystals or crystalline powder. Confirm hydrate state, assay and impurity limits with the enquiry rather than assuming every order matches one stock grade.
Laboratories use Mohr's salt for volumetric iron(II) standards and redox titration. Water and wastewater methods may call for ferrous ammonium sulphate in COD determination, while manufacturing buyers specify technical grades as a reducing agent or synthesis intermediate. It is not ferrous sulphate, ferric ammonium sulphate or ammonium sulphate.
Send the required grade, hydrate form if known, application or method, quantity and delivery location with your enquiry. Availability, packing, documentation and delivery timing are confirmed with the quotation.

- CAS number
- 7783-85-9
- Formula
- (NH4)2Fe(SO4)2·6H2O
- Grade
- analytical, laboratory, technical
- Appearance
- pale green to blue-green crystals or crystalline powder
Ferrous Ammonium Sulphate grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Analytical reagent Mohr's salt hexahydrate | pale green to blue-green crystals or crystalline powder | — | Redox titration, volumetric standardisation and other analytical methods that name ferrous ammonium sulphate or Mohr's salt as the iron(II) double salt standard. | Confirm the required pack format with the quotation. |
| Laboratory reagent ferrous ammonium sulphate | crystals or crystalline powder | — | COD and water analysis, laboratory solution preparation and general reagent work where a laboratory grade iron(II) ammonium sulphate is specified. | Confirm the required pack format with the quotation. |
| Technical grade ferrous ammonium sulphate | crystals or crystalline powder | — | Chemical synthesis, process reducing-agent duties and industrial formulations that call for technical ferrous ammonium sulphate rather than an analytical reagent grade. | Confirm the required pack format with the quotation. |
| Ferrous ammonium sulphate hexahydrate crystals | free-flowing crystals or crystalline powder as specified | — | Buyers who specify the common hexahydrate (Mohr's salt) form for titration, water analysis or process make-up and need packing and assay confirmed against their method. | Confirm the required pack format with the quotation. |
How to buy ferrous ammonium sulphate from ChemTrade
Request a quote for ferrous ammonium sulphate
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | pale green to blue-green crystals or crystalline powder | — |
| Chemical identity | ferrous ammonium sulphate double salt, also called Mohr's salt and ammonium iron(II) sulphate; iron(II) form, not ferric ammonium sulphate | — |
| Common commercial form | hexahydrate crystals (Mohr's salt); confirm hydrate state with the enquiry | — |
| Typical formula (hexahydrate) | (NH4)2Fe(SO4)2·6H2O | — |
| Typical CAS (hexahydrate) | 7783-85-9 | — |
| Solubility | soluble in water | — |
| Grade controls | assay, impurity limits, insoluble matter and hydrate form confirmed against the required analytical, laboratory or technical grade | — |
Ferrous Ammonium Sulphate applications
Safety and handling
Keep sealed in a cool, dry place and protect from moisture, strong oxidisers and contamination that can oxidise iron(II) to iron(III). Follow the safety information for the quoted grade. Supply is subject to applicable requirements.
Common questions about ferrous ammonium sulphate
Is Mohr's salt the same as ferrous ammonium sulphate?
Yes. Mohr's salt is the common name for ferrous ammonium sulphate hexahydrate, also written as ammonium iron(II) sulphate or ammonium ferrous sulphate. State the grade and any assay or impurity limits with the enquiry, because analytical and technical grades are selected for different methods.
Is this the same product as ferrous sulphate or ferric ammonium sulphate?
No. Ferrous ammonium sulphate is an iron(II) ammonium double salt. Ferrous sulphate is a different iron(II) salt, and ferric ammonium sulphate is the iron(III) double salt. Keep the full double-salt name on the enquiry so the correct product is quoted.
Which grade should I request for titration or COD work?
Analytical reagent Mohr's salt hexahydrate is commonly selected for redox titration and volumetric standardisation. Laboratory reagent grades are often used for COD and water analysis. Name the method, required assay and any impurity limits so the quotation can match the grade.
Do I need to specify the hexahydrate form?
The common commercial form is the hexahydrate associated with Mohr's salt. If your method or purchase order names a hydrate state, assay basis or crystal form, include that detail so packing and specification can be confirmed against the requirement.
What details are needed for a ferrous ammonium sulphate price enquiry?
Provide grade, hydrate form if known, target specification or method, quantity and delivery location. Mention preferred pack format and any documents required so the quotation can cover the full requirement.
Can packing and documents be confirmed with the quotation?
Yes. List the preferred pack format and any required safety or specification documents in the enquiry. Available packing and documentation are confirmed for the quoted grade.
