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sec-Butyl Acetate

General Description

  • Synonyms: sec-Butyl ester of acetic acid, 1-Methylpropyl acetate
  • OSHA IMIS Code Number: 0441
  • Chemical Abstracts Service (CAS) Registry Number: 105-46-4
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: AF7380000
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: 1123 129
  • NIOSH Pocket Guide to Chemical Hazards, sec-Butyl acetate: 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): 200 ppm, 950 mg/m3 TWA
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 200 ppm, 950 mg/m3 TWA

Health Factors

  • NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 1,700 ppm [LEL]
  • Potential Symptoms: Eye irritation; headaches, drowsiness; dry upper respiratory system, dry skin
  • Health Effects: Irritation-Eye, Nose, Throat---Moderate (HE15); Narcosis (HE8)
  • Affected Organs: Eyes, skin, respiratory system

Laboratory Sampling/Analytical Method:

  • Charcoal Tube (100/50 mg sections; 20/40 mesh)
  • maximum volume: 12 Liters
  • maximum flow rate: 0.05 L/min (TWA)
  • maximum volume: 0.75 Liters
  • maximum flow rate: 0.05 L/min (STEL)
  • current analytical method: Gas Chromatography; GC/FID
  • analytical solvent: Carbon Disulfide
  • method reference: OSHA Analytical Method (OSHA 1009)
  • method classification: Fully Validated
  • Diffusive Sampler:
    • 3M 3520 Organic Vapor Monitor;
    • SKC 575-002 Passive Sampler
  • minimum time: 15 to 240 minutes
  • current analytical method: Gas Chromatography; GC/FID
  • method reference: OSHA Analytical Method (OSHA 1009)
  • analytical solvent: Carbon Disulfide
  • method classification: Fully Validated
  • note: Persons using diffusive samplers to monitor workplace air must ensure that the sampling devices are properly closed before transporting such devices to the laboratory for analysis. The device will continue to sample until properly closed. Diffusive sampler accessories used for analysis of samplers must be included with transported samples. Persons using such devices must provide sampling-site station barometric pressure and temperature to the analytical laboratory to improve accuracy of sampling results.
  • 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: Carbon Disulfide
  • alternate analytical solvent: (99:1) Carbon Disulfide:Dimethylformamide
  • alternate analytical solvent: (95:5) Methylene Chloride:Methanol
  • method reference: NIOSH Analytical Method (NIOSH 1450 (PDF))
  • method classification: Fully Validated
  • note: Samples should be refrigerated as soon as possible after sampling and sent cold to the laboratory.

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