Zinc powder or Zinc dust

Substance Data

Source: TOXNET

CAS-Number

7440-66-6

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 138

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

Packing Group I
Packing Group II
Packing Group III

(3) Hazard Class

4.3
Dangerous when wet materials

(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.

A19	Combination packagings consisting of outer fiber drums or plywood drums, with inner plastic packagings, are not authorized for transportation by aircraft. Browse special provision A19
IB4	Authorized IBCs: Metal (11A, 11B, 11N, 21A, 21B, 21N, 31A, 31B and 31N). Browse special provision IB4
IP1	IBCs must be packed in closed freight containers or a closed transport vehicle. Browse special provision IP1
N40	This material is not authorized in the following packagings: a. A combination packaging consisting of a 4G fiberboard box with inner receptacles of glass or earthenware; b. A single packaging of a 4C2 sift-proof, natural wood box; or c. A composite packaging 6PG2 (glass, porcelain or stoneware receptacles within a fiberboard box). Browse special provision N40
W31	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	211	see 49 CFR §173.211
(8C) Bulk	242	see 49 CFR §173.242

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	15 kg

(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

13	Keep as dry as reasonably practicable.
52	Stow “separated from” acids.¹ ²
53	Stow “separated from” alkaline compounds.²
148	see 49 CFR §176.84

¹For waste cyanides or waste cyanide mixtures or solutions, refer to §173.12(e) of this subchapter.

² Class 8 materials in PG II or III that otherwise are required to be segregated from one another may be transported in the same cargo transport unit, whether in the same packaging or not, provided the substances do not react dangerously with each other to cause combustion and/or evolution of considerable heat, or of flammable, toxic or asphyxiant gases, or the formation of corrosive or unstable substances; and the package does not contain more than 30 L (7.8 gallons) for liquids or 30 kg (66 lbs.) for solids.

Source: 49 CFR §176.84

(3) Hazard Class

4.3
Dangerous when wet materials

(4) Identification number

UN 1436

(5) Packing Group

Comparison View of PG

(6) Labels

Spontaneously combustible materials (4.2)

(7) Special Provisions (§172.102)

A19	Combination packagings consisting of outer fiber drums or plywood drums, with inner plastic packagings, are not authorized for transportation by aircraft. Browse special provision A19
IB7	Authorized IBCs: Metal (11A, 11B, 11N, 21A, 21B, 21N, 31A, 31B and 31N); Rigid plastics (11H1, 11H2, 21H1, 21H2, 31H1 and 31H2); Composite (11HZ1, 11HZ2, 21HZ1, 21HZ2 and 31HZ1); Wooden (11C, 11D and 11F). Additional Requirement: Liners of wooden IBCs must be sift-proof. Browse special provision IB7
IP2	When IBCs other than metal or rigid plastics IBCs are used, they must be offered for transportation in a closed freight container or a closed transport vehicle. Browse special provision IP2
T3	see 49 CFR §172.102
TP33	The portable tank instruction assigned for this substance applies for granular and powdered solids and for solids which are filled and discharged at temperatures above their melting point which are cooled and transported as a solid mass. Solid substances transported or offered for transport above their melting point are authorized for transportation in portable tanks conforming to the provisions of portable tank instruction T4 for solid substances of packing group III or T7 for solid substances of packing group II, unless a tank with more stringent requirements for minimum shell thickness, maximum allowable working pressure, pressure-relief devices or bottom outlets are assigned in which case the more stringent tank instruction and special provisions shall apply. Filling limits must be in accordance with portable tank special provision TP3. Solids meeting the definition of an elevated temperature material must be transported in accordance with the applicable requirements of this subchapter. Browse special provision TP33
W31	see 49 CFR §172.102
W40	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	212	see 49 CFR §173.212
(8C) Bulk	242	see 49 CFR §173.242

(9) Quantity Limits

(9A) Passenger aircraft/rail	15 kg
(9B) Cargo aircraft only	50 kg

(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

13	Keep as dry as reasonably practicable.
52	Stow “separated from” acids.¹ ²
53	Stow “separated from” alkaline compounds.²
148	see 49 CFR §176.84

¹For waste cyanides or waste cyanide mixtures or solutions, refer to §173.12(e) of this subchapter.

Source: 49 CFR §176.84

(3) Hazard Class

4.3
Dangerous when wet materials

(4) Identification number

UN 1436

(5) Packing Group

III

Comparison View of PG

(6) Labels

(7) Special Provisions (§172.102)

IB8	Authorized IBCs: Metal (11A, 11B, 11N, 21A, 21B, 21N, 31A, 31B and 31N); Rigid plastics (11H1, 11H2, 21H1, 21H2, 31H1 and 31H2 ); Composite (11HZ1, 11HZ2, 21HZ1, 21HZ2 and 31HZ1); Fiberboard (11G); Wooden (11C, 11D and 11F); Flexible (13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3, 13L4, 13M1 or 13M2). Browse special provision IB8
IP4	Flexible, fiberboard or wooden IBCs must be sift-proof and water-resistant or be fitted with a sift-proof and water-resistant liner. Browse special provision IP4
T1	see 49 CFR §172.102
TP33	The portable tank instruction assigned for this substance applies for granular and powdered solids and for solids which are filled and discharged at temperatures above their melting point which are cooled and transported as a solid mass. Solid substances transported or offered for transport above their melting point are authorized for transportation in portable tanks conforming to the provisions of portable tank instruction T4 for solid substances of packing group III or T7 for solid substances of packing group II, unless a tank with more stringent requirements for minimum shell thickness, maximum allowable working pressure, pressure-relief devices or bottom outlets are assigned in which case the more stringent tank instruction and special provisions shall apply. Filling limits must be in accordance with portable tank special provision TP3. Solids meeting the definition of an elevated temperature material must be transported in accordance with the applicable requirements of this subchapter. Browse special provision TP33
W31	see 49 CFR §172.102

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	213	see 49 CFR §173.213
(8C) Bulk	242	see 49 CFR §173.242

(9) Quantity Limits

(9A) Passenger aircraft/rail	25 kg
(9B) Cargo aircraft only	100 kg

(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

13	Keep as dry as reasonably practicable.
52	Stow “separated from” acids.¹ ²
53	Stow “separated from” alkaline compounds.²
148	see 49 CFR §176.84

¹For waste cyanides or waste cyanide mixtures or solutions, refer to §173.12(e) of this subchapter.

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	Zinc powder or Zinc dust	Zinc powder or Zinc dust	Zinc powder or Zinc dust
3	4.3	4.3	4.3
4	UN 1436	UN 1436	UN 1436
5	I	II	III
6	4.3, 4.2	4.3, 4.2	4.3, 4.2
7	A19, IB4, IP1, N40, W31	A19, IB7, IP2, T3, TP33, W31, W40	IB8, IP4, T1, TP33, W31
8A	None	None	None
8B	211	212	213
8C	242	242	242
9A	Forbidden	15 kg	25 kg
9B	15 kg	50 kg	100 kg
10A	A	A	A
10B	13, 52, 53, 148	13, 52, 53, 148	13, 52, 53, 148

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 1309	Aluminum powder, coated	4.1
UN 2871	Antimony powder	6.1
UN 0028	Black powder, compressed or Gunpowder, compressed or Black powder, in pellets or Gunpowder, in pellets	1.1D
NA 0027	Black powder for small arms	4.1
UN 0027	Black powder or Gunpowder, granular or as a meal	1.1D
	Bleaching powder, see Calcium hypochlorite mixtures, etc
	Cordite, see Powder, smokeless
UN 0094	Flash powder	1.1G
UN 2545	Hafnium powder, dry	4.2
UN 1326	Hafnium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns	4.1
UN 1418	Magnesium, powder or Magnesium alloys, powder	4.3
UN 3189	Metal powder, self-heating, n.o.s	4.2
UN 3089	Metal powders, flammable, n.o.s	4.1
UN 0160	Powder, smokeless	1.1C
UN 0433	Powder cake, wetted or Powder paste, wetted with not less than 17 percent alcohol by mass	1.1C
UN 0159	Powder cake, wetted or Powder paste, wetted with not less than 25 percent water, by mass	1.3C
	Powder paste, see Powder cake, etc
UN 1345	Rubber scrap or shoddy, powdered or granulated, not exceeding 840 microns and rubber contend exceeding 45%	4.1
UN 1346	Silicon powder, amorphous	4.1
NA 3178	Smokeless powder for small arms (100 pounds or less)	4.1
UN 2546	Titanium powder, dry	4.2
UN 1352	Titanium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns	4.1
UN 2878	Titanium sponge granules or Titanium sponge powders	4.1
UN 1436	Zinc powder or Zinc dust	4.3
UN 2008	Zirconium powder, dry	4.2