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Chemical Sampling Information (CSI)
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General Description

Synonyms: Amyl aldehyde; Pentanal; Valeral; Valeraldehyde; Valeric aldehyde

OSHA IMIS Code Number: V108

Chemical Abstracts Service (CAS) Registry Number: 110-62-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: YV3600000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 2058 129

NIOSH Pocket Guide to Chemical Hazards, n-Valeraldehyde: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 50 ppm, 176 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 50 ppm, 175 mg/m3 TWA; Appendix C - Supplementary Exposure Limits (Aldehydes)

Health Factors

Potential Symptoms: Irritation of eyes, skin, nose, throat.

Health Effects: Irritation-Eyes, Nose, Throat, Skin---Moderate (HE15)

Affected Organs: Eyes, skin, respiratory system

Notes:
  1. OSHA does not have a PEL for n-valeraldehyde.
  2. Vapor/air mixtures of valeraldehyde may be explosive.
  3. Valeraldehyde is listed by the FDA as a synthetic flavoring substance that is permitted for direct addition to food for human consumption (21 CFR 172.515), and it occurs naturally in a wide variety of foods (e.g., alcoholic beverages, dairy products, cocoa, popcorn, potato chips).
  4. Valeraldehyde was one of several aldehydes that evoked erythema of the skin in volunteers when applied to the skin as a patch containing 25 µl of a 75% solution in water for five minutes.
Date Last Revised: 03/08/2007

Literature Basis:
  • NIOSH Pocket Guide to Chemical Hazards: n-Valeraldehyde.
  • International Chemical Safety Cards (WHO/IPCS/ILO): Valeraldehyde.
  • Pohanish, R.P. (editor): Valeraldehyde. In, Sittig’s Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 2307-2308.
  • Wilkin, J.K. and Fortner, G.: Cutaneous vascular sensitivity to lower aliphatic alcohols and aldehydes in Orientals. Alcohol Clin. Exp. Res. 9(6): 522-525, 1985.
Monitoring Methods used by OSHA

Laboratory Sampling/Analytical Method:
  • sampling media: Three Coated Glass Fiber Filters (Open Face) in one cassette, two back-to-back the third separated by a spacer. The filters are coated with 2,4-Dinitrophenylhydrazine (DNPH) and Phosphoric Acid.
    analytical solvent: Acetonitrile
    maximum volume: 3 Liters
    maximum flow rate: 0.05 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UV
    method reference: OSHA Analytical Method (OSHA 85)
    method classification: Fully Validated
    note: Keep samples in dark after sampling.
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Page last updated: 12/21/2007

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