Potassium chlorate

ClKO3

potassium chlorate

CAS3811-04-9
GHS03 Gefahrensymbol: Brandfördernd – Flamme über Kreis
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
Danger

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Identification

CAS Number
3811-04-9
EC Number
223-289-7
UN Number
1485
Index Number
017-004-00-3
PubChem CID
6426889

Physical-chemical properties

Molecular Formula
ClKO3
Molar Mass
122.55 g/mol
IUPAC Name
potassium chlorate

Chemical Identifiers

InChI
InChI=1S/ClHO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
InChI Key
VKJKEPKFPUWCAS-UHFFFAOYSA-M

Overview

Potassium chlorate (CAS 3811-04-9) is an inorganic oxidizing salt with strong oxygen-releasing properties and high reactivity with combustible materials. This white crystalline compound serves as a powerful oxidizing agent in various industrial applications, where its ability to readily release oxygen makes it particularly valuable for specific technical processes. With the molecular formula ClKO3 and a molar mass of 122.55 g/mol, potassium chlorate belongs to the chlorate family of compounds, sharing similar oxidizing characteristics with related substances like sodium chlorate, though each offers distinct advantages depending on the application requirements. The compound presents significant safety considerations due to its classification as Oxidizing Solid Category 1 and Acute Toxicity Category 3, requiring careful handling protocols and appropriate storage conditions. Its strong oxidizing nature means it can accelerate combustion and may cause fire or explosion when in contact with organic materials, flammable substances, or reducing agents. The GHS03 and GHS06 pictograms indicate both oxidizing and acute toxicity hazards, while its ADR classification 5.1 reflects its oxidizing properties for transport purposes. In industrial applications, potassium chlorate finds primary use in the manufacture of safety matches, where it serves as an essential component in match head compositions. It also plays a crucial role in pyrotechnic formulations and serves as an oxygen source in various chemical processes. The pharmaceutical and analytical chemistry sectors utilize potassium chlorate for specific synthesis reactions and laboratory applications. OYSI provides high-quality potassium chlorate to European industrial customers, ensuring compliance with relevant safety standards and regulatory requirements for professional chemical applications.

Safety & Classification

Danger
Classification:

Ox. Sol. 1; Acute Tox. 3

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H271

May cause fire or explosion; strong oxidiser.

H301

Toxic if swallowed.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Ingestion

Toxic

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number1485
ADR Class5.1
Packing GroupII
Tunnel CodeE
Proper Shipping NameKaliumchlorat, fest
Marine PollutantNo

Frequently Asked Questions

What is potassium chlorate?

Potassium chlorate is an inorganic chemical compound with the formula ClKO3 and CAS number 3811-04-9. It is a powerful oxidizing agent with a molecular weight of 122.55 g/mol, classified as a hazardous substance under GHS regulations. This crystalline salt appears as white crystals or powder and is highly soluble in water. It poses significant safety risks due to its oxidizing properties and acute toxicity, requiring careful handling and storage protocols in industrial applications.

What are the physicochemical properties of potassium chlorate?

Potassium chlorate appears as white crystalline powder or crystals with no distinctive odor. It is highly soluble in water and exhibits strong oxidizing properties due to its chemical structure. The compound has a molecular weight of 122.55 g/mol and decomposes when heated, releasing oxygen gas. Its oxidizing nature makes it reactive with combustible materials, organic compounds, and reducing agents, which is why it requires special handling precautions and storage conditions.

What is potassium chlorate used for?

Potassium chlorate is primarily used as an oxidizing agent in various industrial applications including pyrotechnics, matches, and explosives manufacturing. It serves as a source of oxygen in chemical processes and is utilized in the production of other chemicals. The compound finds applications in laboratory settings for analytical chemistry and research purposes. Due to its hazardous classification and regulatory restrictions, its use is typically limited to professional and industrial contexts with appropriate safety measures.

How to handle potassium chlorate safely?

Potassium chlorate requires strict safety protocols due to its Ox. Sol. 1 and Acute Tox. 3 classifications. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas to avoid inhalation exposure. Keep away from heat sources, combustible materials, and reducing agents to prevent fire or explosion risks. Use non-sparking tools and avoid friction during handling. Ensure proper training and emergency procedures are in place before working with this hazardous substance.

How to store potassium chlorate correctly?

Potassium chlorate must be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly sealed and separate from combustible materials, organic substances, acids, and reducing agents to prevent dangerous reactions. Store in original packaging with proper labeling including GHS pictograms GHS03 and GHS06. Ensure storage areas have appropriate fire suppression systems and restrict access to authorized personnel only. Regular inspection of containers for damage or leakage is essential for safe storage.

What to do in case of contact with potassium chlorate?

Immediate action is required in case of contact with potassium chlorate due to its Acute Tox. 3 classification. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If inhaled, move to fresh air immediately and seek medical attention. In case of eye contact, flush thoroughly with water and remove contact lenses if present. For ingestion, do not induce vomiting and seek immediate medical assistance. Always consult safety data sheets for complete first aid procedures.

How to dispose of potassium chlorate appropriately?

Potassium chlorate disposal must comply with local and national hazardous waste regulations due to its oxidizing and toxic properties. Never dispose of this substance in regular waste streams or pour down drains. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities may require neutralization by qualified personnel before disposal. Maintain proper documentation of waste disposal activities and ensure compliance with environmental protection regulations. Always consult local authorities for specific disposal requirements in your region.

How to transport potassium chlorate?

Potassium chlorate is classified as ADR Class 5.1 (oxidizing substances) Group II for transportation purposes. It requires proper packaging in approved containers with appropriate labels and documentation. Transport vehicles must comply with ADR regulations including proper placarding and emergency equipment. Drivers need special training for hazardous materials transport. Ensure proper segregation from incompatible substances during transport and maintain emergency response information. Professional logistics companies experienced in hazardous materials handling should manage transportation to ensure regulatory compliance.

Is potassium chlorate subject to specific regulations?

Potassium chlorate is subject to comprehensive chemical safety regulations including REACH registration requirements in Europe and CLP classification standards. It carries the danger signal word and specific GHS pictograms (GHS03, GHS06) due to its oxidizing and acute toxicity properties. The substance requires safety data sheets, proper labeling, and employee training programs. Transportation is regulated under ADR Class 5.1 requirements. Users must comply with occupational safety standards and may face restrictions depending on intended use and local regulations.

Where to buy potassium chlorate in Europe?

Potassium chlorate is available through OYSI, a specialized European distributor of technical chemicals. As a professional chemical supplier, OYSI provides quality potassium chlorate with proper documentation, safety data sheets, and regulatory compliance support. Purchase requires verification of legitimate industrial use due to the substance's hazardous classification. OYSI ensures proper packaging, labeling, and transport arrangements according to ADR Class 5.1 requirements. Contact OYSI directly to discuss specific requirements, quantities, and delivery options for your industrial applications.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.