Barium azide, wetted with not less than 50 percent water, by mass

Barium azide is an inorganic azide with the formula Ba(N3)2. It is a barium salt of hydrazoic acid. Like most azides, it is explosive. It is less sensitive to mechanical shock than lead azide. Wikipedia

Emergency Response Guide No. 113

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

4.1
Flammable solids

(4) Identification number

UN 1571

(5) Packing Group

(6) Labels

Cargo Aircraft Only (Cargo Aircraft Only)

(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.

162	This material may be transported under the provisions of Division 4.1 only if it is packed so that at no time during transport will the percentage of diluent fall below the percentage that is stated in the shipping description. Browse special provision 162
A2	Single packagings are not permitted on aircraft. Browse special provision A2
W31	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	182	see 49 CFR §173.182
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	0.5 kg

(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

28	Stow “away from” flammable liquids.
36	Stow “away from” heavy metals and their compounds.

Source: 49 CFR §176.84

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.

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 1854	Barium alloys, pyrophoric	4.2
UN 0224	Barium azide, dry or wetted with less than 50 percent water, by mass	1.1A
UN 1571	Barium azide, wetted with not less than 50 percent water, by mass	4.1
UN 2719	Barium bromate	5.1
UN 1445	Barium chlorate, solid	5.1
UN 1564	Barium compounds, n.o.s	6.1
UN 2741	Barium hypochlorite with more than 22 percent available chlorine	5.1
UN 1884	Barium oxide	6.1
UN 3406	Barium perchlorate, solution	5.1
UN 1448	Barium permanganate	5.1
UN 1449	Barium peroxide	5.1
	Barium selenate, see Selenates or Selenites