Cobalt Hydroxide
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Cobalt Hydroxide

It is a kind of light pink powder, specific gravity 3.6, soluble in acid and ammonium salt solution, insoluble in water and alkali. It reacts with organic acids to form cobalt soap.
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  • Co61-62%

  • W&Q


Co

61-62min

Fe

0.003max

Ni

0.003max

Zn

0.003max

Mn

0.003max

Cu

0.003max

Pb

0.003max

D50

<2um


Product Overview


Cobalt Hydroxide (chemical formula: Co(OH)₂; CAS No.: 21041-93-0) is a pale pink crystalline powder with a powdery texture and a specific gravity of 3.6. It is soluble in acids and ammonium salt solutions but insoluble in water and alkalis, and reacts with organic acids to form cobalt soap—key properties that make it versatile across multiple industries. This inorganic compound is produced through the reaction of high-purity cobalt metal or cobalt salts with strong bases, ensuring it meets strict industrial standards for purity and performance. With a molecular weight of 92.94, it is packaged in 25kg net bags (40 bags per 1000kg pallet) and classified as UN 3077, Class 9, reflecting its safe handling and transportation compliance for industrial use only.


cobalt hydroxide


Product Benefits


Exceptional Purity for Critical Applications: Our Cobalt Hydroxide boasts a minimum cobalt content of 61-62%, with impurities like Fe, Ni, Zn, Mn, Cu, and Pb all controlled to a maximum of 0.003%. This high purity is vital for applications where even trace contaminants could compromise final product performance—such as lithium-ion battery production, where it directly impacts energy density.

Stable Supply Chain for Large-Scale Needs: We maintain a reliable raw material network, ensuring consistent availability of Cobalt Hydroxide in bulk quantities. This stability eliminates delays for manufacturers relying on steady inputs for battery, ceramic, or fertilizer production.

Competitive Pricing Without Quality Compromise: By optimizing our production processes and leveraging economies of scale, we offer cost-effective pricing that delivers value for investment. Clients get premium-grade Cobalt Hydroxide without overpaying for unnecessary additives.

Consistent Quality Through Strict Controls: Every batch undergoes rigorous quality testing, from raw material inspection to final packaging. This ensures each shipment meets the same high standards, reducing variability for end-users and simplifying quality assurance workflows.


Usage


Battery Production for Rechargeable Devices

Cobalt Hydroxide is a core component in lithium-ion batteries, a technology driving the growth of electric vehicles (EVs) and renewable energy storage systems. It enhances the batteries’ energy density, allowing longer runtime for EVs and more efficient storage of solar or wind power. As global demand for clean energy solutions rises, our Cobalt Hydroxide provides the reliability manufacturers need to scale production.


Ceramic Pigments & High-Temperature Stability

In ceramic manufacturing, Cobalt Hydroxide acts as a key ingredient in pigment formulations, imparting a subtle, long-lasting pink hue to ceramic surfaces. It also offers excellent fire retardancy and stability during high-temperature firing—critical for ensuring ceramic products retain their color and structural integrity even in extreme heat.


Agricultural Micronutrient for Leguminous Crops

As a micronutrient in agricultural fertilizers, Cobalt Hydroxide supports the growth of leguminous crops like soybeans, peanuts, and beans. It enhances the soil’s nitrogen-fixing ability, helping plants absorb essential nutrients more efficiently and improving overall crop yield.


Other Industrial Applications

It serves as a raw material for cobalt salt production, a drier agent for paints and varnishes, and a catalyst for hydrogen peroxide decomposition—expanding its utility across chemical processing and coating industries.


FAQ


What storage conditions are recommended for Cobalt Hydroxide?

Store in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and incompatible substances (such as strong alkalis, which it does not react with but may affect packaging). Avoid moisture to prevent clumping.


Is your Cobalt Hydroxide suitable for food-grade applications?

No, our Cobalt Hydroxide is labeled “FOR INDUSTRIAL USE ONLY” and is not intended for food, pharmaceutical, or cosmetic applications. It is optimized for industrial processes like battery manufacturing and ceramic production.


What is the particle size of your Cobalt Hydroxide?

Our product has a D50 particle size of less than 2μm, which ensures good dispersion in formulations—ideal for applications like battery electrodes or ceramic glazes where uniform particle distribution is key.


How is Cobalt Hydroxide shipped, and what documentation is provided?

Each shipment includes a certificate of analysis (CoA) verifying purity and impurity levels. It is shipped in 25kg net bags on pallets, with compliance labels for UN 3077 (Environmentally Hazardous Substance, Solid, N.O.S.) to meet international transport regulations.


Why Choose Us


As a leading Chinese manufacturer of Cobalt Hydroxide, we prioritize customer value and long-term partnerships. Our commitment to “establishing excellence and winning by quality” drives every aspect of our operations:


• We specialize in cobalt-based chemicals, with years of experience in R&D and production of Cobalt Hydroxide technical equipment—led by independent innovation to continuously improve product quality.

• Our team offers flexible payment terms to accommodate diverse client needs, from small-batch trials to large-scale long-term orders.

• We focus on maximizing your product value by delivering consistent, high-purity Cobalt Hydroxide that reduces waste and improves your end-product performance.

• With a mission to be trusted by customers and respected by the industry, we provide responsive technical support and transparent communication throughout the ordering and delivery process.


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