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Catalysts & Catalyst Precursors

Manganese sulfate

CAS: 7785-87-7

Overview

Manganese sulfate (CAS 7785-87-7 ), also sold as manganous sulfate, is an inorganic manganese salt used across agriculture, nutrition, and industrial processing as a concentrated, bioavailable source of manganese.

It functions as a micronutrient supplement, catalyst precursor, and process chemical depending on the application sector. In agriculture, it corrects manganese deficiency in crops through foliar sprays and soil amendments.

This directly improves yield in cereals, legumes, and fruit crops. Feed and premix manufacturers incorporate it as a trace mineral source in livestock and poultry nutrition programs to ensure optimal animal health.

In battery and electronics manufacturing, it serves as a precursor in the synthesis of electrolytic manganese dioxide and cathode materials. Water treatment operations use it to support oxidation processes.

These processes are essential for iron and manganese removal from potable water supplies. Manganese sulfate is available as a monohydrate powder, which is the most commercially prevalent form in the market.

Higher hydrate forms are also present in some markets. Recognized grades include feed-grade, fertilizer-grade, and technical-grade, with food-grade and pharmaceutical-grade material available for specific needs.

These high-purity options meet stricter requirements such as FCC , USP , Ph.Eur. , BP , EP , or ACS standards. Standard packaging ranges from 25 kg bags to bulk quantities for industrial buyers.

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Physical Properties

Melting Point700 °C
Boiling Pointdecomposes at 850°C [HAW93]
Density3.25 g/cm³
AppearanceTranslucent, pale-rose-red, efflorescent prisms. Soluble in water; insoluble in alcohol.
Colorwhite orthorhombic crystals, crystalline
Formwhite orthorhombic crystals
Water Solubilityg/100g solution H2O: 34.6 (0°C), 39.2 (25°C), 26.1 (100.7°C); solid phase, MnSO4 · 7H2O (0°C), MnSO4 ·H2O (25°C, 100.7°C) [KRU93]
Vapor Pressure0Pa at 20℃
Log P-1.031 (est)

Safety & Handling

Warning GHS08 GHS09 GHS05 GHS07 Hazard Statements H302 Harmful if swallowed H318 Causes serious eye damage H341 Suspected of causing genetic defects H360 May damage fertility or the unborn child H361 Suspected of damaging fertility or the unborn child H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H402 Harmful to aquatic life H411 Toxic to aquatic life with long lasting effects H412 Harmful to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P308+P316 Get emergency medical help immediately. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

UN Number1760

Other Names

MnSO4 | manganous sulfate | manganese(II) sulphate | manganese(2+) sulphate | manganese(2+) sulfate | manganese sulphate | manganese monosulfate | manganese sulfate anhydrous

Related Products

Chemical Properties

CAS Number
7785-87-7
EC Number
232-089-9
Mol. Weight
151.00

Industries

Documentation