© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Product Name: Sodium 1-Pentanesulfonate Monohydrate
Chemical Formula: C5H11SO3Na · H2O
Synonyms: Pentanesulfonic acid sodium salt hydrate, Sodium pentane-1-sulfonate monohydrate
CAS Number: 22767-49-3
EC Number: 245-210-8
Recommended Use: Laboratory chemical, ion-pairing reagent in liquid chromatography
Manufacturer Details: Provided upon inquiry, always check label for up-to-date supplier information
Emergency Telephone Number: Refer to country or region-specific chemicals information center
GHS Classification: Not classified as hazardous according to current regulation (review SDS details for updates)
Label Elements: Not required for this chemical under GHS/CLP standards
Potential Health Effects: Dust may irritate eyes, skin and respiratory tract; repeated exposure might cause dryness or discomfort
Environmental Hazards: Spillage into surface waters should be avoided to prevent aquatic irritation
Other Hazards: Fine particles could form combustible dust concentrations in air under rare defective conditions
Chemical Identity: Sodium 1-Pentanesulfonate Monohydrate
PURITY: >98% as supplied; verify lot-specific certificate of analysis when needed
Impurities: Minor fractions may include unhydrated form or related sulfonate chain homologs; presence usually below regulatory concern
Component Breakdown:
- Sodium 1-Pentanesulfonate: 98–100%
- Water of hydration: up to 3%
Eye Contact: Rinse eyes gently but thoroughly with water for at least 10 minutes, remove contact lenses if possible; seek assessment if irritation does not resolve
Skin Contact: Wash skin with mild soap and flowing water, remove contaminated clothing and wash before reuse; persistent irritation calls for medical advice
Inhalation: Move to area with fresh air, keep subject at rest and monitor for respiratory distress; if coughing or breathing difficulty occur, seek professional care
Ingestion: Rinse mouth and give water if conscious; do not induce vomiting; get medical evaluation if signs of discomfort develop or if ingested improperly
Notes for Medical Personnel: Treat symptomatically; no special antidotes are required
Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, or carbon dioxide are suitable
Hazards Arising: Decomposition releases carbon oxides and sulfur oxides; avoid inhaling combustion fumes
Protective Equipment: Firefighters should use self-contained breathing apparatus and protective suit
Advice for Fire Responders: Use precaution when handling pressurized fire runoff; try to contain fire-fighting water to prevent environmental release
Personal Precautions: Ventilate area, limit exposure by wearing gloves, goggles, and mask as situation demands
Methods for Cleanup: Sweep up without creating dust, collect in container for disposal; wash spill area with plenty of water if needed
Environmental Precautions: Block entry into sewers or public waterways; prevent product from spreading or reaching soil or vegetation
Reference for Emergency Services: Maintain safety perimeter until area is decontaminated, contain dust with damping if feasible
Safe Handling: Work in a well-ventilated space, avoid breathing dust and contact with eyes or skin; use care when pouring powder
Storage Recommendations: Store in tightly closed container in a cool, dry place, away from incompatible materials like oxidizing agents
Incompatibilities: Strong acids and bases, strong oxidizers
Hygiene Practices: Wash hands before breaks and after handling, do not eat or drink around open chemicals
Occupational Exposure Limits: No established specific regulatory limits; general dust exposure monitoring applies
Engineering Controls: Use local exhaust ventilation to control airborne particles
Protective Equipment: Safety goggles or face shield, nitrile gloves, laboratory coat recommended
Respiratory Protection: Dust mask or suitable particulate respirator for handling spills or transferring bulk amounts
Environmental Controls: Avoid release to environment; use containment wherever large quantities are processed
Appearance: White to off-white crystalline powder
Odor: Slight fatty odor or odorless
pH (1% sol): 6.5–8.5
Melting Point: Not well-defined due to dehydration; decomposes above 200°C
Boiling Point: Not applicable
Flash Point: Not flammable under standard test conditions
Solubility: Freely soluble in water
Relative Density: Approximately 1.2 g/cm3
Vapor Pressure: Not determined, negligible at ambient
Partition Coefficient (log Kow): Not expected to bioaccumulate
Autoignition Temperature: No autoignition risk observed
Chemical Stability: Stable under normal conditions and recommended handling environments
Hazardous Reactions: No significant danger from hazardous polymerization
Conditions to Avoid: Moisture and excessive heat accelerate decomposition
Materials to Avoid: Strong acids, alkalis, oxidizers
Decomposition Products: Under strong heat may release sulfur oxides, carbon oxides, sodium compounds
Reactivity Note: Not known for violent or rapid reactions in normal laboratory scenarios
Acute Toxicity: Data limited for this specific salt; related sulfonate salts display low acute oral and dermal toxicity
Skin Irritation: May cause mild or moderate temporary irritation in sensitive cases
Eye Irritation: Dust may trigger discomfort, redness or watering
Respiratory Effects: Inhaling fine particulates for prolonged periods may irritate mucous membranes
Chronic Effects: No evidence of carcinogenicity or significant chronic toxicity; long-term misuse could foster dermatitis
Sensitization: Not classified as a skin sensitizer under typical use
Mutagenicity/Teratogenicity: No mutagenic or teratogenic concerns documented for this substance
Aquatic Toxicity: Data lacking for exact compound; sodium alkylsulfonates present low toxicity to aquatic life at incidental release levels
Persistence and Degradability: Likely biodegradable in natural environments
Bioaccumulation: Not anticipated due to water solubility and high polarity
Mobility in Soil: High water solubility suggests migration potential; spillage may move rapidly in wet ground
Other Ecological Notes: Avoid bulk discharges to waterways; no chronic bioaccumulation documented
Waste Treatment Methods: Dispose as laboratory chemical waste in accordance with local, regional, and national regulations
Container Disposal: Rinse and triple-wash plastics or glassware before recycling or authorized disposal
Environmental Precautions: Prevent uncontrolled disposal into drains or natural settings
Recommended Disposal: Incineration in chemical waste facility where allowed, otherwise landfill via authorized waste management contractor
UN Number: Not regulated for road, air, sea, or rail transport under standard codes
Proper Shipping Name: Not classified as dangerous goods
Hazard Class: None
Packing Group: None assigned
Marine Pollutant: No
Transport Precautions: Prevent container damage; secure bag or drum to prevent accidental spillage
Label Requirements: Follow general laboratory chemical safety labeling
Federal/State Regulations: Not specifically listed under US TSCA, Canada DSL, EU REACH Annex XVII restrictions
Workplace Regulation: Use in line with standard occupational chemical hygiene practices
Other Rules: Product compliance with RoHS, REACH and other chemical directives may be checked for specific applications in critical sectors
Inventory Status: Typically listed or exempt under global inventories, confirm for your jurisdiction
