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Chemical Sampling Information (CSI)
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General Description

Synonyms: Diisopropyl ether; 2-Isopropoxy propane; Isopropylether

OSHA IMIS Code Number: 1565

Chemical Abstracts Service (CAS) Registry Number: 108-20-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TZ5425000; 66053

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1159 Flammable Liquid

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

Chemical Description and Physical Properties:

colorless liquid with a sharp, sweet, ether-like odor
molecular weight: 102
vapor pressure: 119 mm
boiling point: 156°F
melting point: -121°F

Incompatibilities: Strong oxidizers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 500 ppm, 2100 mg/m3

Construction Industry: 500 ppm, 2100 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 250 ppm, 1040 mg/m3 TWA; 310 ppm, 1300 mg/m3 STEL

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 500 ppm TWA

Health Factors

Potential Symptoms: Eye, nose irritation; respiratory discomfort; dermatitis; In animals: drowsiness, dizziness, unconsciousness; narcosis

Health Effects: Irritation-Eye, Nose, Throat, Skin---Mild (HE15)

Affected Organs: Respiratory system, skin

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (100/50 mg sections; 20/40 mesh)
    analytical solvent: Carbon Disulfide
    maximum volume: 3 Liters
    maximum flow rate: 0.05 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (NIOSH 1618 [107 KB PDF, 4 pages])
    sampling analytical error: 0.09
    method classification: Fully Validated

Secondary Laboratory Sampling/Analytical Method (SAM2):

  • device: Instrumentation
    company:
    Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range: 0.2 ppm @ 9.0 um
    class: Mfg

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