HazMat Tool — substance information Reference only — not a shipping paper, placard mandate, or CVI record.

Chloropicrin and methyl chloride mixtures

HMT 15 June 2026

UN / ID: UN 1582
Hazard class: 2.3
Packing group: — (multiple — see tabs)
ERG guide: ERG 119
Special provisions: SP 2, SP N86, SP T50
Source: 49 CFR §172 (15 June 2026)

Chloropicrin and methyl chloride mixtures

Chloropicrin, also known as PS (from Port Sunlight) and nitrochloroform, is a chemical compound currently used as a broad-spectrum antimicrobial, fungicide, herbicide, insecticide, and nematicide. It was used as a poison gas in World War I. Its chemical structural formula is Cl3C−NO2 Wikipedia

Emergency Response Guide No. 119

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

Packing group
Packing group

(3) Hazard class

2.3
Poisonous gas

(4) Identification number

UN 1582

(5) Packing Group

—

Comparison View of PG

(6) Labels

(7) Special Provisions (§172.102)

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

2	This material is poisonous by inhalation (see § 171.8 of this subchapter) in Hazard Zone B (see § 173.116(a) or § 173.133(a) of this subchapter), and must be described as an inhalation hazard under the provisions of this subchapter. Browse special provision 2
N86	UN pressure receptacles made of aluminum alloy are not authorized. Browse special provision N86
T50	When portable tank instruction T50 is indicated in Column (7) of the § 172.101 Hazardous Materials Table, the applicable liquefied compressed gas and chemical under pressure descriptions are authorized to be transported in portable tanks in accordance with the requirements of § 173.313 of this subchapter. Browse special provision T50

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	193	see 49 CFR §173.193
(8C) Bulk	245	see 49 CFR §173.245

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	Forbidden

(10) Vessel stowage

(10A) Location

Stowage category “D” means the material must be stowed “on deck only” on a cargo vessel or on a passenger vessel carrying a number of passengers limited to not more than the larger of 25 passengers or one passenger per each 3 m of overall vessel length, but the material is prohibited on a passenger vessel in which the limiting number of passengers is exceeded.

Source: 49 CFR §172.101(k)

(10B) Other

25	see 49 CFR §176.84
40	see 49 CFR §176.84

Source: 49 CFR §176.84

Methyl chloride and chloropicrin mixtures,
see Chloropicrin and methyl chloride mixtures