<< Back to Chemical Sampling Information

Chemical Sampling Information (CSI)
Search (use word(s)/phrase)
Table of Contents
By Name
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

By CAS Number
Quick Links

General Description

Synonyms: Tetraethyl pyro-phosphate; Commercial 40%; Ethyl pyrophosphate; Bladan; Nifost; Vapotone; Tetron; Killax; Moropal

OSHA IMIS Code Number: 2334

Chemical Abstracts Service (CAS) Registry Number: 107-49-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: UX6825000; 73348

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 2783 152 (solid), 3018 152 (liquid) ; UN2784

NIOSH Pocket Guide to Chemical Hazards, TEPP: chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
colorless to amber liquid with a faint, fruity odor
molecular weight: 290
boiling point: Decomposes
vapor pressure: (284°F) 1 mm
melting point: 32°F
Incompatibilities: Strong oxidizers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 0.05 mg/m3 (Skin)

Construction Industry: 0.05 mg/m3 TWA (Skin)
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.05 mg/m3 TWA (Skin)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.05 mg/m3 TWA (Skin)


Health Factors

Potential Symptoms: Eye pain, blurred vision, lacrimation, rhinorrhea; headaches; tight chest; cyanosis; anorexia; nausea, vomiting, diarrhea; local sweating; weakness; twitching; paralysis; Cheyne-Stokes respiration; convulsions; low blood pressure, cardiac irregularities

Health Effects: Cholinesterase inhibition (HE6)

Affected Organs: CNS, respiratory system, CVS, GI tract

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
    analytical solvent: Toluene
    maximum volume: 480 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/FPD
    method reference: 2 (OSHA In-House File)
    method classification: Partially Validated
    note: OSHA personnel may obtain sampling tubes from the Salt Lake Technical Center.

Wipe Sampling Method:

  • sampling media: Glass Fiber Filter

Bulk Method:

  • Limit the amount of bulk submitted to one gram or one mL.
** All Trademarks are the property of their respective owners.