Manganese Sulfate (CAS 7785-87-7) Application Notes: What Actually Matters from Fertilizer Micronutrients to Battery Materials
Mention Manganese sulfate (CAS 7785-87-7) and most people think of fertilizer. That is not wrong, but it is only one layer. The same chemical name hides very different buying criteria depending on whether the batch goes to a fertilizer plant, a feed mill or a battery-materials line. This page works backwards from applications so you can pin down what you actually need.
1. Basic specifications
| Product name | Manganese sulfate |
|---|---|
| CAS No. | 7785-87-7 |
| Formula | MnO4S |
| Molecular weight | 151.00 |
| Melting point | 700 °C |
| Boiling point | decomposes at ~850 °C |
| Applications | Inorganic Chemicals / Fine Chemicals / Nutrition Enhancers |
| Standard purity | per batch COA |
| Packaging | confirmed per order |
| Storage | keep sealed in a cool, dry place |
Figures above are published / typical information; final values follow the batch COA and order confirmation.
2. Application-first: three directions, three different specs
1) Agriculture and fertilizer
Manganese is an essential micronutrient for crops, and deficiency shows up early in cereals. For manganese fertilizer use, the practical focus is manganese content, water solubility (speed of availability) and heavy-metal limits, because the material enters the soil and the crop uptake chain. This segment is price-sensitive and more tolerant of hydrate-form differences.
2) Feed nutrition fortification
As a manganese source in animal feed, the material works alongside other minerals in the ration; what matters is bioavailability, particle uniformity and impurity stability. Feed-grade raw materials usually face stricter heavy-metal and microbiological limits, and export buyers should confirm the destination market's regulations in advance, because limits vary noticeably between markets.
3) Industrial and new-energy materials
This is the direction with the fastest-growing enquiry volume recently. Manganese sulfate is one manganese source for battery-material precursors, and is also used to prepare other manganese salts and catalysts. Here purity, impurity profile and batch-to-batch consistency matter far more. In inorganic chemicals, what really moves downstream cost is usually not a point or two of assay but stable control of specific impurities such as iron, sodium and calcium. For precise formulations, also confirm particle size and dissolution behaviour with the supplier.
3. Hydrate forms: same CAS, different faces
One point deserves special attention: CAS 7785-87-7 names the anhydrous skeleton, but the market commonly supplies manganese(II) sulfate tetrahydrate (CAS 10101-68-5) and manganese sulfate heptahydrate (CAS 13492-24-5) as well. Water of crystallization changes effective manganese content, dissolution speed and hygroscopicity, so stating the hydrate form you need prevents a wrong shipment far better than quoting the CAS number alone.
4. Common pitfalls
- Quoting CAS without the hydrate form: effective manganese can differ by well over ten percentage points between anhydrous and heptahydrate, which distorts any per-ton comparison.
- Using industrial specs for feed grades: impurity limits are built differently; cross-use carries compliance risk.
- Ignoring batch consistency: for continuous production or blending, run-to-run variation hurts more than the level of any single batch.
5. FAQ
Which forms of manganese sulfate are common and how do I choose?
Common forms include anhydrous, monohydrate, tetrahydrate and heptahydrate manganese sulfate; water of crystallization changes effective manganese content, dissolution speed and storage stability, so choose by downstream process; final values follow the batch COA.
Which specifications matter when sourcing manganese sulfate?
Confirm manganese content (as Mn or as manganese sulfate), hydrate form, impurity limits such as iron/lead/arsenic, particle size and packaging, and request the batch COA.
Which industries use manganese sulfate?
Mainly agricultural micronutrient fertilizers (manganese fertilizer), feed nutrition fortification, industrial catalysts and synthesis intermediates, and new-energy battery materials (precursor raw materials).
6. Related products & comparison
- Manganese(II) sulfate tetrahydrate, 99% (metals basis) (CAS 10101-68-5)
- Manganese sulfate heptahydrate (CAS 13492-24-5)
- Manganese gluconate (CAS 6485-39-8)
- Manganese succinate (CAS 637-82-1)
See the full site search for manganese, or browse the Inorganic Chemicals and Food Additives directories.
7. Supplier & compliance
Jinan Shenghe Chemical Co., Ltd. is based in Jinan, Shandong, and supplies inorganic chemicals and raw materials with a COA for every shipment; quotations are returned within one business day.
Enquiries: info@591daili.com | +86-18553102138
Note: This page is for industrial raw-material technical discussion only. Products are supplied for industrial and research use, not for consumer or medical use. Drinking-water, food, cosmetic, pharmaceutical or feed applications must meet applicable regulations and customer standards; specifications, compliance documents and transport requirements follow the batch COA and order confirmation.