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

Chlorate and magnesium chloride mixture solution

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 3407
Hazard class
5.1
Packing group
II (multiple — see tabs)
ERG guide
ERG 140
Special provisions
SP A9, SP IB2, SP N34, SP T4, SP TP1
Source
49 CFR §172 (15 June 2026)

Spot an error in this entry?

Chlorate and magnesium chloride mixture solution


Chlorate is the common name of the ClO−3 anion, whose chlorine atom is in the +5 oxidation state. The term can also refer to chemical compounds containing this anion, with chlorates being the salts of chloric acid. Other oxyanions of chlorine can be named "chlorate" followed by a Roman numeral in parentheses denoting the oxidation state of chlorine: e.g., the ClO−4 ion commonly called perchlorate can also be called chlorate(VII). As predicted by valence shell electron pair repulsion theory, chlorate anions have trigonal pyramidal structures Wikipedia

Emergency Response Guide No. 140

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard class

5.1
Oxidizers

(4) Identification number Help

UN 3407

(5) Packing Group Help

II

(6) Labels Help

Oxidizers (5.1)

(7) Special Provisions (§172.102) Help

×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.
A9
IB2
N34
T4
TP1

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions152see 49 CFR §173.152
(8B) Non-bulk202see 49 CFR §173.202
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail1 L
(9B) Cargo aircraft only5 L

(10) Vessel stowage Help

(10A) Location
(10B) Other

(3) Hazard class

5.1
Oxidizers

(4) Identification number Help

UN 3407

(5) Packing Group Help

III

(6) Labels Help

Oxidizers (5.1)

(7) Special Provisions (§172.102) Help

×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.
A9
IB2
N34
T4
TP1

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions152see 49 CFR §173.152
(8B) Non-bulk203see 49 CFR §173.203
(8C) Bulk241see 49 CFR §173.241

(9) Quantity Limits Help

(9A) Passenger aircraft/rail2.5 L
(9B) Cargo aircraft only30 L

(10) Vessel stowage Help

(10A) Location
(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 II PG III
1
2Chlorate and magnesium chloride mixture solutionChlorate and magnesium chloride mixture solution
35.15.1
4UN 3407UN 3407
5IIIII
65.15.1
7A9, IB2, N34, T4, TP1A9, IB2, N34, T4, TP1
8A152152
8B202203
8C242241
9A1 L2.5 L
9B5 L30 L
10AAA
10B56, 58, 13356, 58, 133

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.

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