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Bromine solutions

HMT 15 June 2026

UN / ID: UN 1744
Hazard class: 8
Packing group: I (multiple — see tabs)
ERG guide: ERG 154
Special provisions: SP 1, SP B9, SP B85, SP N34, SP N43, SP T22, SP TP2, SP TP10, more…
Source: 49 CFR §172 (15 June 2026)

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Bromine solutions

Substance Data

Source: PubChem (HSDB, 04.12.2019)

CAS-Number

7726-95-6

Flash Point

—

Boiling Point

—

Emergency Response Guide No. 154

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

Packing group I
Packing group II

(3) Hazard class

8
Corrosive liquids

This entry is signed with plus (+). The plus (+) sign fixes the proper shipping name, hazard class and packing group for that entry without regard to whether the material meets the definition of that class, packing group or any other hazard class definition. When the plus sign is assigned, it means that the material is known to pose a risk to humans. When a plus sign is assigned to mixtures or solutions containing a material where the hazard to humans is significantly different from that of the pure material or where no hazard to humans is posed, the material may be described using an alternative shipping name that represents the hazards posed by the material. An appropriate alternate proper shipping name and hazard class may be authorized by the Associate Administrator.

(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.

This material is poisonous by inhalation (see § 171.8 of this subchapter) in Hazard Zone A (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 1

Bottom outlets are not authorized.

Browse special provision B9

B85

Cargo tanks must be marked with the name of the lading in accordance with the requirements of § 172.302(b).

Browse special provision B85

N34

Aluminum construction materials are not authorized for any part of a packaging which is normally in contact with the hazardous material.

Browse special provision N34

N43

Metal drums are permitted as single packagings only if constructed of nickel or monel.

Browse special provision N43

T22

Minimum test pressure (bar)	10
Minimum shell thickness	10 mm
Pressure-relief requirements	§ 178.275(g)(3)
Bottom opening requirements	Prohibited

Browse special provision T22

TP2

a. The maximum degree of filling must not exceed the degree of filling determined by the following:
TP2a

Where:
t_r is the maximum mean bulk temperature during transport,
t_f is the temperature in degrees celsius of the liquid during filling, and
α is the mean coefficient of cubical expansion of the liquid between the mean temperature of the liquid during filling (t_f) and the maximum mean bulk temperature during transportation (t_r) both in degrees celsius.
b. For liquids transported under ambient conditions α may be calculated using the formula:
TP2b

Where:
d₁₅ and d₅₀ are the densities (in units of mass per unit volume) of the liquid at 15 °C (59 °F) and 50 °C (122 °F), respectively.

Browse special provision TP2

TP10

A lead lining, not less than 5 mm thick, which shall be tested annually, or another suitable lining material approved by the competent authority, is required. A portable tank may be offered for transport after the date of expiry of the last lining inspection for a period not to exceed three months for purposes of performing the next required test or inspection, after emptying but before cleaning.

Browse special provision TP10

TP13

Self-contained breathing apparatus must be provided when this hazardous material is transported by sea.

Browse special provision TP13

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	226	see 49 CFR §173.226
(8C) Bulk	249	see 49 CFR §173.249

(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

12	see 49 CFR §176.84
25	see 49 CFR §176.84
40	see 49 CFR §176.84
53	see 49 CFR §176.84
58	see 49 CFR §176.84
66	see 49 CFR §176.84
74	see 49 CFR §176.84
89	see 49 CFR §176.84
90	see 49 CFR §176.84

Source: 49 CFR §176.84

(3) Hazard class

8
Corrosive liquids

(4) Identification number

UN 1744

(5) Packing Group

Comparison View of PG

(6) Labels

(1) Symbols

(7) Special Provisions (§172.102)

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

Bottom outlets are not authorized.

Browse special provision B9

B85

Cargo tanks must be marked with the name of the lading in accordance with the requirements of § 172.302(b).

Browse special provision B85

N34

Aluminum construction materials are not authorized for any part of a packaging which is normally in contact with the hazardous material.

Browse special provision N34

N43

Metal drums are permitted as single packagings only if constructed of nickel or monel.

Browse special provision N43

T22

Minimum test pressure (bar)	10
Minimum shell thickness	10 mm
Pressure-relief requirements	§ 178.275(g)(3)
Bottom opening requirements	Prohibited

Browse special provision T22

TP2

a. The maximum degree of filling must not exceed the degree of filling determined by the following:
TP2a

Where:
d₁₅ and d₅₀ are the densities (in units of mass per unit volume) of the liquid at 15 °C (59 °F) and 50 °C (122 °F), respectively.

Browse special provision TP2

TP10

Browse special provision TP10

TP13

Self-contained breathing apparatus must be provided when this hazardous material is transported by sea.

Browse special provision TP13

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	227	see 49 CFR §173.227
(8C) Bulk	249	see 49 CFR §173.249

(9) Quantity Limits

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

(10) Vessel stowage

(10A) Location

Source: 49 CFR §172.101(k)

(10B) Other

12	see 49 CFR §176.84
25	see 49 CFR §176.84
40	see 49 CFR §176.84
53	see 49 CFR §176.84
58	see 49 CFR §176.84
66	see 49 CFR §176.84
74	see 49 CFR §176.84
89	see 49 CFR §176.84
90	see 49 CFR §176.84

Source: 49 CFR §176.84

Packing group comparison

Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.

	PG I	PG I
1	+	+
2	Bromine solutions	Bromine solutions
3	8	8
4	UN 1744	UN 1744
5	I	I
6	8, 6.1	8, 6.1
7	1, B9, B85, N34, N43, T22, TP2, TP10, TP13	2, B9, B85, N34, N43, T22, TP2, TP10, TP13
8A	None	None
8B	226	227
8C	249	249
9A	Forbidden	Forbidden
9B	Forbidden	Forbidden
10A	D	D
10B	12, 25, 40, 53, 58, 66, 74, 89, 90	12, 25, 40, 53, 58, 66, 74, 89, 90

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 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

	Must not be loaded, transported, or stored together in the same vehicle or facility.
	May be loaded, transported, or stored together.
	May be loaded, transported, or stored together only with restrictions.