Synonyms: Acrylic acid, butyl ester; Butyl 2-propenoate; n-Butyl Acrylate

OSHA IMIS Code Number: 0450

Chemical Abstracts Service (CAS) Registry Number: 141-32-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: UD3150000; 67199

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2348 129P Flammable Liquid

Chemical Description and Physical Properties:

molecular weight: 128.17
boiling point: 145°C

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 ppm TWA; SEN; Appendix A4 (Not Classifiable as a Human Carcinogen) (TLV listed for n-Butyl Acrylate)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 ppm TWA

Carcinogenic Classification:

International Agency for Research on Cancer (IARC): Group 3, not classifiable as to its carcinogenicity to humans (n-Butyl Acrylate)

Primary Laboratory Sampling/Analytical Method (SLC1):

• sampling media: Coated Charcoal Tube (100/50 mg sections, 20/40 mesh); coating is 10% (w/w) 4-t-Butylcatechol.
  analytical solvent: Carbon Disulfide
  maximum volume: 12 Liters
  maximum flow rate: 0.05 L/min
  current analytical method: Gas Chromatography; GC/FID
  method reference: 2 (OSHA In-House File)
  method classification: Partially Validated
  

Secondary Sampling/Analytical Method (SAM2):

• device: Detector Tube
  company: Kitagawa
  part #: 211U
  range: 5-60 ppm
  class: Mfg
  


• device: Instrumentation
  company: Organic Vapor Analyzer
  part #: Organic Vapor Analyzer
  class: Mfg