Powered by GoogleTranslate

sec-Butyl Alcohol

General Description

  • Synonyms: 2-Butanol; sec-Butanol; Methyl ethyl carbinol; Butylene hydrate; 2-Hydroxybutane
  • OSHA IMIS Code Number: 0461
  • Chemical Abstracts Service (CAS) Registry Number: 78-92-2
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: EO1750000
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: 1120 129
  • NIOSH Pocket Guide to Chemical Hazards, sec-Butyl alcohol: chemical description, physical properties, potentially hazardous incompatibilities, and more

Exposure Limits

  • OSHA Permissible Exposure Limit (PEL):
  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 100 ppm, 303 mg/m3 TWA - listed under sec-Butanol
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 100 ppm, 305 mg/m3 TWA; 150 ppm, 455 mg/m3 STEL

Health Factors

  • NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 2,000 ppm
  • Potential Symptoms: Eye irritation (redness, pain, blurred vision); dry skin, dermatitis; headache; dizziness, drowsiness, narcosis.
  • Health Effects: Irritation-Eye, Nose, Throat, Skin---Mild (HE16); Narcosis (HE8); Explosive, Flammable, Safety (HE18)
  • Affected Organs: Eyes, skin, respiratory system, CNS
  • Notes:
    1. Above 24°C, explosive vapor/air mixtures may be formed.
    2. Listed among FDA's "food additives permitted for direct addition to food for human consumption" (21CFR 172.515)
  • Literature Basis:
  • Date Last Revised: 01/21/2004

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Charcoal Tube (100/50 mg sections, 20/40 mesh)
  • maximum volume: 10 Liters
  • maximum flow rate: 0.2 L/min
  • current analytical method: Gas Chromatography; GC/FID
  • analytical solvent: (99:1) Carbon Disulfide/Isopropanol
  • alternative solvent: (99:1) Carbon Disulfide/Dimethylformamide
  • method reference: NIOSH Manual of Analytical Methods (NIOSH 1401 (PDF))
  • method classification: Fully Validated
On-Site Sampling Techniques/Methods:
  • Detector Tube
  • manufacturer: AUER/MSA
  • model/type: Ethanol-100, MSA P/N 804136, AUER P/N 5086-818
  • sampling information: follow manufacturer's instructions
  • upper measurement limit: 5100 ppm
  • detection limit: approximately 150 ppm
  • overall uncertainty: unknown
  • method reference: on-site air secondary (manufacturer)
  • Detector Tube
  • manufacturer: Gastec
  • model/type: 115
  • sampling information: 3 strokes
  • upper measurement limit: 150 ppm
  • detection limit: 1 ppm
  • overall uncertainty: 25% for 5 to 50 ppm, 16% for 50 to 150 ppm
  • method reference: on-site air secondary (manufacturer)
  • Detector Tube
  • manufacturer: Matheson-Kitagawa
  • model/type: 8014-189U
  • sampling information: 2 or 4 strokes
  • upper measurement limit: 300 ppm
  • detection limit: approximately 4 ppm
  • overall uncertainty: unknown
  • method reference: on-site air secondary (manufacturer)

** All Trademarks are the property of their respective owners.

*Accessibility Assistance: Contact OSHA's Directorate of Technical Support and Emergency Management at (202) 693-2300 for assistance accessing PDF materials.

All other documents, that are not PDF materials or formatted for the web, are available as Microsoft Office® formats and videos and are noted accordingly. If additional assistance is needed with reading, reviewing or accessing these documents or any figures and illustrations, please also contact OSHA's Directorate of Technical Support and Emergency Management at (202) 693-2300.

**eBooks - EPUB is the most common format for e-Books. If you use a Sony Reader, a Nook, or an iPad you can download the EPUB file format. If you use a Kindle, you can download the MOBI file format.

Back to Top

Thank You for Visiting Our Website

You are exiting the Department of Labor's Web server.

The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Users must request such authorization from the sponsor of the linked Web site. Thank you for visiting our site. Please click the button below to continue.