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

1,2-Dinitroethane

HMT 15 June 2026

UN / ID: —
Hazard class: Forbidden
Packing group: — (multiple — see tabs)
ERG guide: —
Special provisions: —
Source: 49 CFR §172 (15 June 2026)

Spot an error in this entry?

On this page

1,2-Dinitroethane

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

Packing group
Packing group
Packing group

(3) Hazard class

Forbidden

(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.

—	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	—
(8B) Non-bulk	—
(8C) Bulk	—

(9) Quantity Limits

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

(10) Vessel stowage

(10A) Location	—
(10B) Other	—

(3) Hazard class

Forbidden

(4) Identification number

—

(5) Packing Group

—

Comparison View of PG

(6) Labels

—

(7) Special Provisions (§172.102)

—	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	—
(8B) Non-bulk	—
(8C) Bulk	—

(9) Quantity Limits

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

(10) Vessel stowage

(10A) Location	—
(10B) Other	—

(3) Hazard class

6.1
Poisonous Material

(4) Identification number

UN 2650

(5) Packing Group

Comparison View of PG

(6) Labels

(7) Special Provisions (§172.102)

IB2

_{Authorized IBCs:} Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1).
_{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 IB2

Minimum test pressure (bar)	4
Minimum shell thickness	§ 178.274(d)(2)
Pressure-relief requirements	Normal
Bottom opening requirements	§ 178.275(d)(3)

Browse special provision T7

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

(8) Packing Authorizations (§173.***)

(8A) Exceptions	153	see 49 CFR §173.153
(8B) Non-bulk	202	see 49 CFR §173.202
(8C) Bulk	243	see 49 CFR §173.243

(9) Quantity Limits

(9A) Passenger aircraft/rail	5 L
(9B) Cargo aircraft only	60 L

(10) Vessel stowage

(10A) Location

Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel.

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
74	see 49 CFR §176.84

Source: 49 CFR §176.84

(3) Hazard class

3
Flammable liquids

(4) Identification number

UN 2842

(5) Packing Group

III

Comparison View of PG

(6) Labels

(7) Special Provisions (§172.102)

If the material has a flash point at or above 38 °C (100 °F) and below 93 °C (200 °F), then the bulk packaging requirements of § 173.241 of this subchapter are applicable. If the material has a flash point of less than 38 °C (100 °F), then the bulk packaging requirements of § 173.242 of this subchapter are applicable.

Browse special provision B1

IB3

_{Authorized IBCs:} Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1 and 31HA2, 31HB2, 31HN2, 31HD2 and 31HH2).
_{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, except for UN2672 (also see special provision IP8 in Table 2 for UN2672).

Browse special provision IB3

Minimum test pressure (bar)	1.5
Minimum shell thickness	§ 178.274(d)(2)
Pressure-relief requirements	Normal
Bottom opening requirements	§ 178.275(d)(3)

Browse special provision T2

TP1

The maximum degree of filling must not exceed the degree of filling determined by the following:
TP1

Where:
t_r is the maximum mean bulk temperature during transport, and t_f is the temperature in degrees celsius of the liquid during filling.

Browse special provision TP1

(8) Packing Authorizations (§173.***)

(8A) Exceptions	150	see 49 CFR §173.150
(8B) Non-bulk	203	see 49 CFR §173.203
(8C) Bulk	242	see 49 CFR §173.242

(9) Quantity Limits

(9A) Passenger aircraft/rail	60 L
(9B) Cargo aircraft only	220 L

(10) Vessel stowage

(10A) Location	A Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel. Source: 49 CFR §172.101(k)
(10B) Other	—

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 —	PG —	PG II	PG III
1
2	1,2-Dinitroethane	Hexanitroethane	1,1-Dichloro-1-nitroethane	Nitroethane
3	Forbidden	Forbidden	6.1	3
4	—	—	UN 2650	UN 2842
5	—	—	II	III
6	—	—	6.1	3
7	—	—	IB2, T7, TP2	B1, IB3, T2, TP1
8A	—	—	153	150
8B	—	—	202	203
8C	—	—	243	242
9A	—	—	5 L	60 L
9B	—	—	60 L	220 L
10A	—	—	A	A
10B	—	—	12, 25, 40, 74	—

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.

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.

Similar substances

UN / ID	Proper shipping name	Hazard class
	1,1-Dinitroethane (dry)	Forbidden
UN 2650	1,1-Dichloro-1-nitroethane	6.1
	1,2-Dinitroethane	Forbidden
	Hexanitroethane	Forbidden