
Potassium Chlorate CAS 3811-04-9 Powder Granular
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Potassium Chlorate CAS 3811-04-9 powder granular
Potassium Chlorate is an inorganic compound widely used in various industrial fields. It has multiple aliases, including Potassium Chlorate(V), Berthollet's Salt, Pot Crate, and Chlorate of Potash. The molecular formula of Potassium Chlorate is
, and its CAS number is 3811-04-9. This product is fully REACH registered, ensuring compliance with EU regulatory requirements, and MSDS download is available for safety and compliance reference.


Product Characteristics & Physical Properties
Potassium Chlorate is a white crystalline solid that exists in two common forms: powder and granular. The powder form is a fine, uniform white powder with high surface area for rapid reaction, while the granular form is dust-free and free-flowing, suitable for applications requiring even distribution. It has a molar mass of 122.55 g/mol and a density of 2.32 g/cm³ at 25°C.
Physically, Potassium Chlorate has a melting point of 356°C and decomposes at approximately 400°C, releasing oxygen during decomposition. It is soluble in pure water and alkaline solutions, slightly soluble in ammonia solution, and insoluble in acetone and glycerol. As a strong oxidizing agent, it enhances the combustibility of combustible substances when mixed, requiring proper handling and storage.
Common Product Specifications
|
Item |
Specification |
|
Purity (Dry Basis) |
≥ 99.5% |
|
Moisture Content |
≤ 0.1% |
|
Insoluble Matter in Water |
≤ 0.01% |
|
Chloride (Cl⁻) |
≤ 0.01% |
|
Heavy Metals (as Pb) |
≤ 0.001% |
Product Applications
Potassium Chlorate is widely used across industrial, agricultural, and pyrotechnic sectors due to its strong oxidizing properties. In the pyrotechnic industry, it is a key raw material for manufacturing fireworks and safety matches, thanks to its stable non-hygroscopic nature and ability to enhance combustion.
In agriculture, it serves as an effective herbicide, particularly for controlling weeds in sugarcane and rice fields, and can also induce flowering in plants such as longan to solve the problem of alternate-year flowering. In the industrial field, it is used as an oxidizer and mordant in textile printing and dyeing, and as a raw material for producing explosives and chemical synthesis.
Additionally, Potassium Chlorate is used in laboratories for oxygen preparation and as a direct titrant for determining V³⁺, Sn²⁺, and Ti³⁺ ions in analytical chemistry.
FAQ
Q1: Is Potassium Chlorate harmful to human health?
A1: Yes, Potassium Chlorate is highly toxic if ingested, causing nausea, abdominal pain, and even unconsciousness. It can also cause mild inflammation on skin contact and irritation to the eyes and respiratory tract. Proper protective equipment must be worn during handling.
Q2: What storage conditions are required for Potassium Chlorate?
A2: It should be stored in a cool, dry, well-ventilated area, away from flammables, combustibles, and reducing agents (such as sulfuric acid and charcoal). The storage area should be dark to avoid exposure to sunlight, which may cause spontaneous reactions.
Q3: Does Potassium Chlorate require special permits for import?
A3: Yes, due to its strong oxidizing properties and potential safety hazards, special permits may be required for import, storage, and handling in many countries. Relevant compliance documents, including MSDS, can be obtained via MSDS download to facilitate customs clearance.
For more detailed safety information and compliance documents, please use the MSDS download service to obtain the latest version of the Material Safety Data Sheet. The product is REACH registered, meeting the strictest EU chemical regulatory standards for industrial and commercial use.

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