UN/NA Number Reference

UN 1086: Vinyl chloride, stabilized

49 CFR 172.101 Hazardous Materials Table·ERG 2024

DOT Classification and Shipping

UN 1086 is assigned the proper shipping name Vinyl chloride, stabilized in the U.S. DOT Hazardous Materials Table (49 CFR 172.101). It is classified as a Class 2.1 Flammable Gas material. Required label(s): 2.1.

Packing group indicates the degree of danger within a hazard class: PG I is high danger, PG II medium, PG III low. The proper shipping name, hazard class, UN number, and packing group together form the basic shipping description that must appear on shipping papers and, where required, on the package and placard.

Emergency Response (ERG Guide 116)

Hazards: May polymerize explosively when heated or involved in fire. Extremely flammable. BLEVE risk.

Fire: Fight fire from maximum distance. Do not extinguish unless flow stopped. Cool containers with water.

Spill: Eliminate all ignition sources. Stop leak if safe.

Chemical and Physical Properties

Vinyl chloride appears as a colorless gas with a sweet odor. Easily ignited. Shipped as a liquefied gas under own vapor pressure. Contact with the unconfined liquid may cause frostbite by evaporative cooling. Leaks may be liquid or vapor. Vapors are heavier than air. May asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. Suspected carcinogen. Used to make plastics, adhesives, and other chemicals.

CAS Number: 75-01-4

Molecular Formula: C2H3Cl

Molecular Weight: 62.50 g/mol

Color / Form: Colorless gas or liquid (below 77 degrees F) [Note: Shipped as a liquefied compressed gas]

Odor: Ethereal odor

Boiling Point: 7°F (-14°C)

Melting Point: -245 °F (NTP, 1992)

Flash Point: -108°F (-78°C)

Autoignition: 882 °F (USCG, 1999)

Specific Gravity: 0.91 (liquid)

Vapor Pressure: 3877.5 mmHg (USCG, 1999)

Vapor Density: 2.16 (heavier than air)

Water Solubility: Slightly soluble

Log P: log Kow = 1.46

Regulatory Data

CERCLA RQ (40 CFR 302.4)

1 lb

OSHA PEL

[1910.1017] TWA 1 ppm C 5 ppm [15-minute]

NIOSH REL

IDLH

Ca [N

RCRA Waste Code(s)

[object Object], [object Object]

A release of this material at or above its CERCLA reportable quantity (1 lb) requires immediate notification to the National Response Center at 800-424-8802.

Special Provisions

49 CFR 172.102 special provision codes for this entry: 21, 387, B44, N86, T50. These codes modify the general requirements (packaging, quantity limits, exceptions) for this specific material. Look up each code in 49 CFR 172.102 for the full text.

Need the full interactive record? Open UN 1086 in the SpillNerd lookup tool for the live database entry with placard graphics, GHS pictograms, full segregation tables, and synonym search. For another material, use the UN number and chemical lookup.

Reference data compiled from the DOT Hazardous Materials Table (49 CFR 172.101), the 2024 Emergency Response Guidebook, and public chemical databases (PubChem, NIOSH, EPA). Always verify the correct shipping description against the current regulation and the manufacturer's SDS Section 14 before shipping.