Trimethylamine, anhydrous

Trimethylamine (TMA) is an organic compound with the formula N(CH3)3. It is a trimethylated derivative of ammonia. TMA is widely used in industry. At higher concentrations it has an ammonia-like odor, and can cause necrosis of mucous membranes on contact. Wikipedia

Substance Data

Source: TOXNET

CAS-Number

75-50-3

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 118

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

2.1
Flammable gases

(4) Identification number

UN 1083

(5) Packing Group

n/a

(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.

N87	The use of copper valves on UN pressure receptacles is prohibited. Browse special provision N87
T50	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	306	see 49 CFR §173.306
(8B) Non-bulk	304	see 49 CFR §173.304
(8C) Bulk	314, 315	see 49 CFR §173.314, 315

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	150 kg

(10) Vessel stowage

(10A) Location

Stowage category “B” means

(i) The material may be stowed “on deck” or “under deck” on a cargo vessel and 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; and
(ii) “On deck only” on passenger vessels in which the number of passengers specified in paragraph (k)(2)(i) of this section is exceeded.

Source: 49 CFR §172.101(k)

(10B) Other

40	Stow “clear of living quarters”.

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 3165	Aircraft hydraulic power unit fuel tank (containing a mixture of anhydrous hydrazine and monomethyl hydrazine) (M86 fuel)	3
UN 1005	Ammonia, anhydrous	2.3
	Anhydrous ammonia, see Ammonia, anhydrous
	Chromic anhydride, see Chromium trioxide, anhydrous
UN 1768	Difluorophosphoric acid, anhydrous	8
UN 1032	Dimethylamine, anhydrous	2.1
NA 2927	Ethyl phosphonothioic dichloride, anhydrous	6.1
NA 2845	Ethyl phosphonous dichloride, anhydrous pyrophoric liquid	6.1
UN 1773	Ferric chloride, anhydrous	8
UN 1776	Fluorophosphoric acid anhydrous	8
UN 2029	Hydrazine, anhydrous	8
	Hydrobromic acid, anhydrous, see Hydrogen bromide, anhydrous
UN 1048	Hydrogen bromide, anhydrous	2.3
UN 1050	Hydrogen chloride, anhydrous	2.3
UN 1061	Methylamine, anhydrous	2.1
UN 1382	Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization	4.2
UN 3247	Sodium peroxoborate, anhydrous	5.1
UN 1385	Sodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization	4.2
UN 1083	Trimethylamine, anhydrous	2.1