Chemical Name: Sodium Octane-1-Sulphonate Monohydrate
Synonyms: Octanesulfonic Acid Sodium Salt Monohydrate
CAS Number: 22767-49-3
EC Number: 245-210-8
Molecular Formula: C8H17NaO3S · H2O
Molecular Weight: 238.30 g/mol
Intended Use: Laboratory reagent, HPLC ion pairing agent, industrial application
Supplier Identification: Manufacturer’s name and contact – address, phone, emergency phone number
Recommended Use Restrictions: Process limited to professionals trained in chemical handling
Emergency Contact: National poison control contact, local emergency fire department
Date of Preparation/Revision: Most recent update listed
GHS Classification: Not classified for acute toxicity, skin corrosion, or environmental hazard under GHS
Hazard Statements: May cause mild skin or eye irritation on prolonged contact; not expected to cause respiratory irritation under normal conditions; low acute toxicity profile
Signal Word: None required for routine use
Pictogram: No pictogram based on current hazard data
Precautionary Statements: Avoid unnecessary contact with skin, eyes, or clothing; use appropriate ventilation; wash exposed skin thoroughly; avoid inhalation of dust
Physical hazards: Powder can create slippery surfaces on floors; mild dust may disrupt breathing for sensitive individuals
Chronic Health Hazards: Repeated exposure may lead to minor irritation but not recognized as carcinogenic, mutagenic, or as a reproductive toxin
Environmental Hazards: Minimal environmental impact in typical working concentrations; non-persistent in aquatic systems
Chemical: Sodium Octane-1-Sulphonate Monohydrate
Content (%): >98% (purity typical for laboratory and scientific grade)
Impurities: Trace moisture, possible small amounts of sodium chloride, negligible for hazard
Chemical Family: Alkylsulfonates
EC Index: 245-210-8
Sodium ion: Present as part of the molecular structure, no separate hazard
Monohydrate: Crystalline solid with one molecule water of crystallization per molecule of organic salt
Inhalation: Remove exposed person to fresh air, keep warm and at rest; seek medical attention if symptoms persist
Skin Contact: Wash skin thoroughly with soap and water; remove contaminated clothing; seek medical advice if irritation develops
Eye Contact: Flush eyes with plenty of water for 15 minutes; remove contact lenses if present; consult a doctor if irritation remains
Ingestion: Rinse mouth with water; do not induce vomiting unless directed by medical personnel; seek medical advice
Advice to Physician: Treat symptomatically; provide supportive measures for irritation or discomfort
Suitable Extinguishing Media: Use carbon dioxide, dry chemical powder, foam, or water spray to extinguish surrounding materials
Unsuitable Extinguishing Media: Do not use high-pressure water jets; may spread dry powders
Special Hazards: Combustion can produce irritating and toxic gases including oxides of sulfur and sodium compounds
Protective Equipment: Firefighters require self-contained breathing apparatus and full protective clothing
Cooling Measures: Apply water spray to cool containers exposed to flames
Explosion Data: Not known as an explosion hazard; fine dust could present a minor dust explosion risk in unventilated spaces
Hazardous Combustion Products: Irritant smoke, sulfur oxides, sodium oxide
Personal Precautions: Wear protective gloves, eye protection, and dust mask; avoid contact with skin and eyes; prevent dust formation
Environmental Precautions: Prevent large spills from entering drains or natural waters; contain for appropriate disposal
Cleanup Methods: Sweep up or vacuum spilled material, place in a tightly closed container for disposal; ventilate area; wash spill site after material pickup is complete
Disposal of Contaminated Materials: Place waste and cleanup materials in suitable labeled containers for disposal by authorized waste handlers
Spill Reporting: Report significant releases to local environmental authorities if above reportable quantities
Precautions for Safe Handling: Use in well-ventilated areas; avoid inhaling dust or contact with skin and eyes; wear appropriate PPE; keep container tightly closed and labeled
Personal Hygiene: Wash hands and exposed skin after handling; do not eat, drink, or smoke while handling
Conditions for Safe Storage: Store in a cool, dry, well-ventilated place away from heat or direct sunlight; maintain container integrity
Incompatible Materials: Strong oxidizers, acidic materials, moisture (for extended storage)
Packaging Materials: Store in original packaging or chemical-resistant container
Specific End Uses: Limit use to applications approved by chemical safety manager or protocol
Control Parameters: No occupational exposure limits set by OSHA, ACGIH, NIOSH, or EU for this substance
Engineering Controls: Use process enclosures, local exhaust ventilation, or work in a chemical hood to control airborne dust
Personal Protective Equipment:
- Respiratory: Approved dust respirator if exposure limits are exceeded or dust levels are high
- Skin: Nitrile or neoprene gloves to prevent skin contact
- Eye: Chemical safety goggles or face shield for splash protection
- Clothing: Long-sleeved lab coat, closed-toe shoes
Workplace Hygiene: Remove contaminated clothing; follow standard decontamination practices for reusable PPE
Appearance: White to off-white crystalline powder
Odor: Odorless or faint characteristic scent
Odor Threshold: Not determined
pH (1% Solution): Around 6.5 – 8.5
Melting Point: Not well defined due to water of crystallization; > 200°C (decomposes)
Boiling Point: Not applicable
Flash Point: Not applicable, non-flammable
Flammability: Not classified as flammable
Upper/Lower Explosion Limit: Not applicable
Vapor Pressure: Negligible at room temperature
Density: 1.1 – 1.3 g/cm³ at 20°C
Water Solubility: Freely soluble in water
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: Above 200°C
Viscosity: Not applicable (solid)
Chemical Stability: Stable under recommended storage conditions, not prone to rapid degradation
Reactivity: Does not react vigorously with most substances under standard handling
Conditions to Avoid: Extreme heat, exposure to strong acids or oxidizing agents
Incompatible Materials: Strong oxidizers (can cause exothermic reactions), mineral acids (may liberate toxic fumes)
Hazardous Decomposition Products: Production of sulfur dioxide or hydrogen sulfide under high-temperature decomposition
Polymerization: Not known to undergo hazardous polymerization
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Oral LD50 (rat): > 2000 mg/kg (low acute toxicity)
Skin Corrosion/Irritation: Mild irritation possible after prolonged or repeated contact
Serious Eye Damage/Irritation: May cause mild transient eye irritation
Respiratory Sensitization: Not expected to produce allergic respiratory responses
Skin Sensitization: Not classified as a skin sensitizer
Germ Cell Mutagenicity: No evidence of mutagenic potential from available data
Carcinogenicity: Not listed by IARC, NTP, OSHA as carcinogenic
Reproductive Toxicity: No data indicating reproductive or developmental toxicity
Specific Target Organ Toxicity: No significant effects identified; effects limited to irritation
Other Information: Persons with existing skin conditions may experience increased sensitivity
Ecotoxicity: Not considered acutely toxic to aquatic organisms based on structure-activity relationships and available analog data
Persistence and Degradability: Readily biodegradable in standard activated sludge tests
Bioaccumulation Potential: Low; significant bioaccumulation in aquatic or terrestrial species not expected
Mobility in Soil: Expected to be mobile due to water solubility; unlikely to persist in soils
Results of PBT and vPvB Assessment: Not considered persistent, bioaccumulative, or toxic
Additional Comments: Avoid uncontrolled release to waterways to reduce unnecessary environmental loading
Waste Disposal Methods: Collect and place in clearly labeled containers; dispose of through licensed hazardous waste contractors as non-hazardous laboratory waste, unless mixed with dangerous chemicals
Contaminated Packaging: Empty containers thoroughly rinse with water before disposal; follow local regulations
Disposal Authorization: Comply with federal, state, and local regulations for chemical substances; consult local environmental agency
Additional Measures: Avoid discharge of washing water and bulk waste to sewers or natural waters; ensure all chemical residue landfill meets environmental standards
UN Number: Not regulated as a dangerous good under ADR, RID, IMDG, IATA
UN Proper Shipping Name: Not applicable
Transport Hazard Class: Not assigned
Packing Group: Not regulated
Environmental Hazards: No specific hazard identified
Special Precautions for User: Transport in sealed, sturdy containers; prevent dispersal of dust during handling; keep away from incompatible cargo
Transport in Bulk: Not intended for bulk transport as defined in Annex II of MARPOL 73/78 and the IBC Code
Additional Observations: Routine transport within the laboratory or industrial premises requires closed and labeled containers, with spill containment practices followed
Safety, Health and Environmental Regulations: Subject to regulation under standard workplace safety standards (OSHA, COSHH, EU REACH beginning registration); no major risk classification under GHS
Chemical Inventory Status: Listed on inventories in US (TSCA), EU (EINECS/ELINCS), Canada (DSL), Australia (AICS), Japan (ENCS), South Korea (KECL)
Labeling Requirements: Require labeling with product identity and standard chemical hazard symbols, even if not acutely toxic
Restrictions: No chemical restriction for sale or use for standard laboratory/industrial applications where risk-managed
Other Regulations: Observe local, regional, and national controls; keep safety documentation available to personnel handling material
