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Product Name: Sodium Perchlorate Monohydrate
Chemical Formula: NaClO₄·H₂O
Synonyms: Perchloric acid, sodium salt, monohydrate
CAS Number: 7791-07-3
Recommended Use: Laboratory reagent, explosives manufacturing, chemical synthesis, plating
Supplier: Detail current supplier name, address, emergency contact
Relevant Uses Advised Against: Do not use in food or pharmaceutical settings or where dust exposure is uncontrolled
Hazard Classification (GHS): Oxidizing solid (Category 1), Acute toxicity (Category 4, oral), Eye irritation (Category 2A)
Label Elements: Danger; flame over circle, exclamation mark pictograms
Hazard Statements: May cause fire or explosion; strong oxidizer. Harmful if swallowed. Causes serious eye irritation.
Precautionary Statements: Keep away from heat, sparks, and combustibles. Avoid breathing dust. Wear protective gear.
Exposure Routes: Inhalation, ingestion, skin/eye contact
Acute Health Effects: Irritation to respiratory system, eyes, and skin. Nausea, vomiting if ingested.
Chronic Effects: Possible effects on thyroid with prolonged or repeated exposure.
Other Risks: Sensitive to contamination by organic material, leading to possible explosion.
Chemical Name: Sodium Perchlorate Monohydrate
Common Name and Synonyms: Perchloric acid sodium salt monohydrate
CAS Number: 7791-07-3
EC Number: 231-882-4
Concentration: More than 98% by weight
Impurities: Generally contains trace sodium chloride and water
Inhalation: Move person to fresh air, keep at rest, seek medical attention if symptoms persist (wheezing, headache, coughing).
Ingestion: Rinse mouth with water; never give anything by mouth to an unconscious person. Do not induce vomiting. Get medical advice immediately.
Skin Contact: Remove contaminated clothing, wash skin gently with soap and water. Seek attention if irritation develops.
Eye Contact: Immediately flush with plenty of clean water while forcibly holding eyelids open. Continue flushing for at least 15 minutes. Seek urgent medical help.
Most Important Symptoms: Coughing, breathing difficulty, burning sensation, abdominal pain
Notes for Physician: Treat symptomatically, ensure airway and breathing. Consider risk of delayed pulmonary effects.
Suitable Extinguishing Media: Use dry chemical, CO₂ or water spray to extinguish fire nearby; avoid dry combustibles and organic materials.
Unsuitable Extinguishing Media: Do not use foam or dry chemical directly on the product.
Hazards from Combustion: May generate toxic gases such as chlorine, sodium oxides, perchorates when heated rapidly.
Special Firefighting Procedures: Wear full oxygen gear and self-contained breathing apparatus. Cool containers with water spray. Remove containers from fire area if safe.
Explosion Risk: Powerful oxidizer, risk of violent reaction with organic material or reducing agents.
Protective Actions: Approach from upwind, prevent run-off water from entering environment.
Personal Precautions: Evacuate non-essential staff, ventilate area. Wear respiratory protection, chemical goggles, gloves, and protective clothing.
Environmental Precautions: Prevent further leakage or spillage. Avoid discharge into drains, waterways or soil.
Spill Cleanup Methods: Sweep up using non-sparking tools. Avoid bulldust. Place material in suitable container for proper disposal.
Decontamination: Wash spill site with large amounts of water after material pickup.
Other Precautions: Avoid mixing with acids, reducing agents, combustibles.
Safe Handling: Use only with explosion-proof equipment. Minimize dust generation. Avoid contact with skin and eyes. Do not eat, drink, or smoke during handling.
Incompatible Materials: Keep away from wood, paper, cloth, organic chemicals, sulfur, powdered metals.
Safe Storage: Store in tightly closed original containers in a cool, dry, well-ventilated area. Protect from direct sunlight and incompatible materials. Separate from combustibles and reducing agents.
Storage Temperature: Store at ambient temperatures away from high heat sources. Avoid freezer or high humidity.
Packaging Materials: Use containers made of compatible plastic, glass, or stainless steel. Avoid fiber or wood.
Occupational Exposure Limits: No official limit for sodium perchlorate; minimize exposure under dust regulations (OSHA PEL for particulates not otherwise regulated is 15 mg/m³ total, 5 mg/m³ respirable fraction).
Engineering Controls: Local exhaust ventilation, safety shower, eyewash station in immediate area.
Personal Protective Equipment (PPE): Protective goggles or face shield. Chemical-resistant gloves (butyl rubber, neoprene). Lab coat and long pants. In dusty environments, NIOSH-approved particulate respirator.
Hygiene Measures: Wash hands and face thoroughly after handling. Avoid ingestion or inhalation.
Environmental Protection: Prevent release into environment, especially water systems.
Appearance: White crystalline solid
Odor: Odorless
Molecular Weight: 156.44 g/mol
pH: 4–9 (aqueous solution)
Melting Point: 48 °C (decomposes above this temperature)
Boiling Point: Not applicable (decomposes)
Solubility: Soluble in water; slightly soluble in alcohol
Vapor Pressure: Not significant
Density: About 2.02 g/cm³
Partition Coefficient (n-octanol/water): Not determined
Flash Point: Not flammable
Explosive Properties: Not itself explosive, but enhances combustion/reactivity of other materials
Chemical Stability: Stable under normal ambient and anticipated storage and handling conditions.
Conditions to Avoid: Excess moisture, heat, open flame, friction, impact, contact with organic materials.
Incompatible Materials: Organic substances, strong reducing agents, acids, sulfur, powdered metals.
Hazardous Decomposition Products: Sodium oxide, chlorine, other toxic gases under fire/decomposition conditions.
Hazardous Reactions: May ignite or explode if exposed to incompatible materials.
Reactivity: Strong oxidizer, supports combustion.
Likely Routes of Exposure: Inhalation, ingestion, skin, eyes
Acute Toxicity: LD50 (oral, rat): About 1100 mg/kg
Short-term Effects: Irritation to mucus membranes, stomach pain, vomiting, diarrhea, headache, dizziness
Long-term Effects: Possible impact on thyroid gland due to interference with iodine uptake
Skin and Eye Contact: Irritation, redness, burning
Carcinogenicity: Not listed by NTP, IARC, OSHA as carcinogen
Mutagenicity/Teratogenicity: No significant findings in standard studies
Sensitization: No established data
Aquatic Toxicity: Harmful to aquatic organisms in larger quantities
Persistence and Degradability: Inorganic compound, not biodegradable. Perchlorates are persistent ions in the environment.
Bioaccumulative Potential: Low bioaccumulation for sodium and perchlorate ions
Mobility in Soil: Highly mobile due to water solubility – can leach into groundwater
Other Hazards: Risk of contaminating drinking water sources, affects aquatic life by interfering with thyroid function
Precautions: Prevent spillage to watercourses or soil, comply with wastewater regulations.
Waste Methods: Dispose of contents in accordance with local/regional/national/international regulations. Dilute substantially, neutralize if possible, and treat as hazardous waste.
Disposal of Packaging: Clean containers thoroughly before recycling or disposal. Unwashed packaging requires hazardous waste treatment.
Special Precautions: Do not discharge to surface water, storm sewers, or groundwater.
Recommended Treatment: Consult hazardous waste specialist. Incineration under controlled conditions may be possible, but avoid using organic fuels.
UN Number: 1502
Proper Shipping Name: Sodium Perchlorate, Monohydrate
Class: 5.1 (Oxidizing substances)
Packing Group: II
Labels Required: Oxidizer (5.1)
Marine Pollutant: Not classified as such, but avoid marine discharge
Transport Precautions: Protect from physical damage, moisture, extreme temperatures, and incompatible substances during transport.
Special Provisions: Ensure trained handlers, emergency response guide available
Global Inventories: Listed in TSCA, EINECS, AICS, DSL, Japan ENCS, Korea ECL systems
OSHA Hazard: Classified as hazardous, strong oxidizer under OSHA Hazard Communication Standard
SARA Title III: Section 302: Not Extremely Hazardous. Section 313: Not subject to reporting.
Clean Water Act: Perchlorates recognized as emerging contaminants, local limits may apply.
California Proposition 65: Not listed
Other Regulations: Subject to chemical safety and environmental protection acts—check federal, state, and local regulations for discharge and uses.
Workplace Controls: Ensure training in hazardous chemical handling, emergency response, and safe storage.
