Corrosive liquid, self-heating, n.o.s

A corrosive material is a liquid or solid that causes full thickness destruction of human skin at the site of contact within a specified period of time. A liquid that has a severe corrosion rate on steel or aluminum based on the criteria in 49CFR 173.137(c)(2) is also a corrosive material. More Information

Emergency Response Guide No. 136

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

Packing Group I
Packing Group II

(3) Hazard Class

8
Corrosive liquids

(4) Identification number

UN 3301

(5) Packing Group

Comparison View of PG

(6) Labels

Spontaneously combustible materials (4.2)

(1) Symbols

This entry is signed with "G". The letter "G" identifies proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses, in association with the basic description. (See §172.203(k)).

(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.

B10	MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo tanks, and DOT 57 portable tanks are not authorized. Browse special provision B10

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	201	see 49 CFR §173.201
(8C) Bulk	243	see 49 CFR §173.243

(9) Quantity Limits

(9A) Passenger aircraft/rail	0.5 L
(9B) Cargo aircraft only	2.5 L

(10) Vessel stowage

(10A) Location	D 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	n/a

(3) Hazard Class

8
Corrosive liquids

(4) Identification number

UN 3301

(5) Packing Group

Comparison View of PG

(6) Labels

(1) Symbols

(7) Special Provisions (§172.102)

B2	MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo tanks are not authorized. Browse special provision B2
IB1	Authorized IBCs: Metal (31A, 31B and 31N). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 kPa at 50 °C (1.1 bar at 122 °F), or 130 kPa at 55 °C (1.3 bar at 131 °F) are authorized. Browse special provision IB1

(8) Packing Authorizations (§173.***)

(8A) Exceptions	154	see 49 CFR §173.154
(8B) Non-bulk	202	see 49 CFR §173.202
(8C) Bulk	242	see 49 CFR §173.242

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 L
(9B) Cargo aircraft only	30 L

(10) Vessel stowage

(10A) Location	D 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	n/a

Comparison View of Different Packing Groups

More than one packing group is indicated for this entry. Criteria for assignment see 49 CFR §173 Subpart D. You can find specific details in the tabs above. Differences are highlighted.

	PG I	PG II
1	G	G
2	Corrosive liquid, self-heating, n.o.s	Corrosive liquid, self-heating, n.o.s
3	8	8
4	UN 3301	UN 3301
5	I	II
6	8, 4.2	8, 4.2
7	B10	B2, IB1
8A	None	154
8B	201	202
8C	243	242
9A	0.5 L	1 L
9B	2.5 L	30 L
10A	D	D
10B	n/a	n/a

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

Note: In this segregation and separation chart are HazMat of hazard class 8 considered depending if there are liquid. Currently HazMat Tool is not able to to check if a HazMat is liquid or not. Therefore it is assumed as liquid. See PHMSA Interpretation #09-0252.

Hazard Class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

	May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
	Load, transport, storage together is not restricted.
	Load, transport, storage together is allowed under restrictions.

Substances with similar name

UN-Number	Name	Hazard Class
UN 3206	Alkali metal alcoholates, self-heating, corrosive, n.o.s.	4.2
	Aluminum phosphate solution, see Corrosive liquids, etc
UN 3547	Articles containing corrosive substance, n.o.s.	8
	Bis (Aminopropyl) piperazine, see Corrosive liquid, n.o.s.
UN 3505	Chemical under pressure, flammable, corrosive, n.o.s	2.1
UN 2742	Chloroformates, toxic, corrosive, flammable, n.o.s	6.1
UN 3362	Chlorosilanes, toxic, corrosive, flammable, n.o.s	6.1
UN 3264	Corrosive liquid, acidic, inorganic, n.o.s	8
UN 3265	Corrosive liquid, acidic, organic, n.o.s	8
UN 3266	Corrosive liquid, basic, inorganic, n.o.s	8
UN 3301	Corrosive liquid, self-heating, n.o.s	8
UN 2920	Corrosive liquids, flammable, n.o.s.	8
UN 2922	Corrosive liquids, toxic, n.o.s.	8
UN 3263	Corrosive solid, basic, organic, n.o.s.	8
UN 2921	Corrosive solids, flammable, n.o.s.	8
UN 1759	Corrosive solids, n.o.s.	8
UN 2923	Corrosive solids, toxic, n.o.s.	8
UN 1774	Fire extinguisher charges, corrosive liquid	8
UN 3180	Flammable solid, corrosive, inorganic, n.o.s.	4.1
UN 2925	Flammable solids, corrosive, organic, n.o.s.	4.1
	Isopentanoic acid, see Corrosive liquids, n.o.s.
UN 3308	Liquefied gas, toxic, corrosive, n.o.s. Inhalation Hazard Zone A	2.3
UN 3085	Oxidizing solid, corrosive, n.o.s	5.1
UN 3185	Self-heating liquid, corrosive, organic, n.o.s	4.2
UN 3131	Water-reactive solid, corrosive, n.o.s	4.3