Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass

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. 132

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

Packing Group I
Packing Group II
Packing Group III

(3) Hazard Class

3
Flammable liquids

(4) Identification number

UN 1297

(5) Packing Group

I

Comparison View of PG

(6) Labels

Flammable liquids (3)

Corrosive liquids (8)

(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.

T11	see 49 CFR §172.102
TP1	The maximum degree of filling must not exceed the degree of filling determined by the following: 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	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

40	Stow “clear of living quarters”.
135	Stow “Separated from” mercury and mercury compounds.

Source: 49 CFR §176.84

(3) Hazard Class

3
Flammable liquids

(4) Identification number

UN 1297

(5) Packing Group

II

Comparison View of PG

(6) Labels

Flammable liquids (3)

Corrosive liquids (8)

(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.

B1	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
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 [deg]C (1.1 bar at 122 [deg]F), or 130 kPa at 55 [deg]C (1.3 bar at 131 [deg]F) are authorized. Browse special provision IB2
T7	see 49 CFR §172.102
TP1	The maximum degree of filling must not exceed the degree of filling determined by the following: 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	202	see 49 CFR §173.202
(8C) Bulk	243	see 49 CFR §173.243

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 L
(9B) Cargo aircraft only	5 L

(10) Vessel stowage

(10A) Location

B

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”.
41	Stow “away from” mercury and its compounds.

Source: 49 CFR §176.84

(3) Hazard Class

3
Flammable liquids

(4) Identification number

UN 1297

(5) Packing Group

III

Comparison View of PG

(6) Labels

Flammable liquids (3)

Corrosive liquids (8)

(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.

B1	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 [deg]C (1.1 bar at 122 [deg]F), or 130 kPa at 55 [deg]C (1.3 bar at 131 [deg]F) are authorized, except for UN2672 (also see Special Provision IP8 for UN2672). Browse special provision IB3
T7	see 49 CFR §172.102
TP1	The maximum degree of filling must not exceed the degree of filling determined by the following: 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	5 L
(9B) Cargo aircraft only	60 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

40	Stow “clear of living quarters”.
41	Stow “away from” mercury and its compounds.

Source: 49 CFR §176.84

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	PG III
1
2	Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass	Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass	Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass
3	3	3	3
4	UN 1297	UN 1297	UN 1297
5	I	II	III
6	3, 8	3, 8	3, 8
7	T11, TP1	B1, IB2, T7, TP1	B1, IB3, T7, TP1
8A	None	150	150
8B	201	202	203
8C	243	243	242
9A	0.5 L	1 L	5 L
9B	2.5 L	5 L	60 L
10A	D	B	A
10B	40, 135	40, 41	40, 41

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 2693	Bisulfites, aqueous solutions, n.o.s.	8
UN 2626	Chloric acid aqueous solution, with not more than 10 percent chloric acid	5.1
UN 2270	Ethylamine, aqueous solution with not less than 50 percent but not more than 70 percent ethylamine	3
UN 3293	Hydrazine, aqueous solution, with not more than 37 percent hydrazine, by mass	6.1
UN 3484	Hydrazine aqueous solution, flammable with more than 37% hydrazine, by mass	8
UN 2030	Hydrazine aqueous solution, with more than 37% hydrazine, by mass	8
UN 1613	Hydrocyanic acid, aqueous solutions or Hydrogen cyanide, aqueous solutions with not more than 20 percent hydrogen cyanide	6.1
UN 2014	Hydrogen, peroxide, aqueous solutions with more than 40 percent but not more than 60 percent hydrogen peroxide (stabilized as necessary)	5.1
UN 2984	Hydrogen, peroxide, aqueous solutions with not less than 8 percent but less than 20 percent hydrogen peroxide (stabilized as necessary)	5.1
UN 2015	Hydrogen peroxide, stabilized or Hydrogen peroxide aqueous solutions, stabilized with more than 60 percent hydrogen peroxide	5.1
	Magnesium bisulfite solution, see Bisulfites, aqueous solutions, n.o.s.
UN 1235	Methylamine, aqueous solution	3
	Morpholine, aqueous, mixture, see Corrosive liquids, n.o.s.
UN 3218	Nitrates, inorganic, aqueous solution, n.o.s.	5.1
UN 3219	Nitrites, inorganic, aqueous solution, n.o.s	5.1
UN 3211	Perchlorates, inorganic, aqueous solution, n.o.s.	5.1
UN 3216	Persulfates, inorganic, aqueous solution, n.o.s	5.1
UN 2427	Potassium chlorate, aqueous solution	5.1
UN 1686	Sodium arsenite, aqueous solutions	6.1
UN 2428	Sodium chlorate, aqueous solution	5.1
UN 1297	Trimethylamine, aqueous solutions with not more than 50 percent trimethylamine by mass	3