Sodium chlorate
ClNaO3
sodium chlorate
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Identification
- CAS Number
- 7775-09-9
- EC Number
- 231-887-4
- UN Number
- 1495
- Index Number
- 017-005-00-9
- PubChem CID
- 516902
Physical-chemical properties
- Molecular Formula
- ClNaO3
- Molar Mass
- 106.44 g/mol
- IUPAC Name
- sodium chlorate
Chemical Identifiers
- InChI
- InChI=1S/ClHO3.Na/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
- InChI Key
- YZHUMGUJCQRKBT-UHFFFAOYSA-M
Overview
Sodium chlorate (CAS 7775-09-9) is an inorganic oxidizing salt with strong oxidizing properties and high solubility in water. This white crystalline compound serves as a critical industrial chemical in various manufacturing processes, particularly valued for its powerful oxidizing capabilities. Sodium chlorate belongs to the chlorate family of compounds, sharing similar properties with related substances like potassium chlorate, though it offers distinct advantages in specific applications due to its superior water solubility and handling characteristics. The compound presents significant safety considerations due to its classification as Oxidizing Solid Category 1 and Acute Toxicity Category 3, requiring careful handling protocols. Its strong oxidizing nature means it can intensify fires and may cause combustible materials to ignite more readily. The GHS03 and GHS06 pictogrammes reflect these oxidizing and toxic properties, while its ADR Class 5.1 classification governs its transportation requirements. Proper storage away from combustible materials, reducing agents, and incompatible substances is essential for safe handling. Industrially, sodium chlorate finds primary application in the production of chlorine dioxide, a powerful bleaching and disinfection agent used extensively in pulp and paper manufacturing. The compound also serves as an important intermediate in the synthesis of other chlorine compounds and finds use in certain herbicide formulations. Additionally, it plays a role in specialized chemical manufacturing processes where controlled oxidation reactions are required. OYSI maintains reliable supply chains for sodium chlorate, ensuring consistent availability of this essential industrial oxidizing agent to meet diverse European market requirements across multiple industrial sectors.
Safety & Classification
Ox. Sol. 1; Acute Tox. 3
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
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
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 Number | 1495 |
| ADR Class | 5.1 |
| Packing Group | II |
| Tunnel Code | E |
| Proper Shipping Name | Natriumchlorat, fest |
| Marine Pollutant | No |
Frequently Asked Questions
What is sodium chlorate?
Sodium chlorate is an inorganic chemical compound with the formula ClNaO3 and CAS number 7775-09-9. It appears as a white crystalline solid with a molecular weight of 106.44 g/mol. This substance is classified as a strong oxidizing agent (Ox. Sol. 1) and poses acute toxicity risks (Acute Tox. 3). Sodium chlorate is widely used in industrial applications due to its powerful oxidizing properties and high solubility in water.
What are the physicochemical properties of sodium chlorate?
Sodium chlorate is a white, odorless crystalline solid that is highly soluble in water. It has a molecular weight of 106.44 g/mol and exhibits strong oxidizing properties. The compound is stable under normal conditions but can decompose when heated, releasing oxygen. It readily dissolves in water to form clear solutions and can form hydrates. Due to its ionic nature, it conducts electricity when dissolved in water.
What is sodium chlorate used for?
Sodium chlorate is primarily used as a herbicide for non-selective weed control and vegetation management. It serves as an oxidizing agent in various industrial processes, including the production of chlorine dioxide for water treatment and pulp bleaching. The compound is also utilized in the manufacture of matches, explosives, and pyrotechnics. Additionally, it finds applications in textile processing and as a laboratory reagent for analytical chemistry purposes.
How to handle sodium chlorate safely?
Sodium chlorate requires careful handling due to its oxidizing and toxic properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas to avoid inhalation of dust particles. Avoid contact with combustible materials, reducing agents, and organic substances as they may cause fire or explosion. Use non-sparking tools and ensure proper grounding to prevent static electricity buildup during handling operations.
How to store sodium chlorate correctly?
Sodium chlorate must be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly sealed and segregated from combustible materials, organic substances, acids, and reducing agents. Store in original containers made of compatible materials and ensure proper labeling. The storage area should be equipped with appropriate fire suppression systems and maintained below 25°C to prevent decomposition and maintain product stability.
What to do in case of contact with sodium chlorate?
Immediate action is required upon contact with sodium chlorate. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15 minutes while holding eyelids open. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician after any significant exposure.
How to dispose of sodium chlorate appropriately?
Sodium chlorate disposal must comply with local and national environmental regulations as hazardous waste. The substance cannot be disposed of in regular waste streams due to its oxidizing properties and toxicity. Contact licensed waste management companies for proper collection and treatment. Small quantities may be neutralized through controlled chemical reduction under professional supervision. Always consult local authorities and follow REACH regulation guidelines for waste classification and disposal procedures.
How to transport sodium chlorate?
Sodium chlorate is classified under ADR transport regulations as Class 5.1 (oxidizing substances), Packing Group II. Transport requires UN-approved packaging and proper hazard labeling with GHS03 and GHS06 pictograms. Vehicles must carry appropriate emergency equipment and drivers need ADR certification. The substance must be segregated from incompatible materials during transport and accompanied by proper shipping documentation including safety data sheets and emergency response procedures.
Is sodium chlorate subject to specific regulations?
Sodium chlorate is subject to comprehensive European regulations under REACH and CLP frameworks. It requires safety data sheet provision and proper hazard classification as Ox. Sol. 1 and Acute Tox. 3 with danger signal word. The substance is not currently listed as SVHC (Substance of Very High Concern). Users must comply with occupational exposure limits, worker protection requirements, and environmental discharge restrictions as specified in national implementations of EU chemical legislation.
Where to buy sodium chlorate in Europe?
Sodium chlorate is available through OYSI, a specialized European distributor of technical chemicals. As an established chemical supplier, OYSI provides high-quality sodium chlorate with proper documentation including safety data sheets and certificates of analysis. The company ensures compliance with European regulations and offers reliable supply chain management across European markets. Contact OYSI directly for specific grades, packaging options, and availability in your region.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.