HazMat Tool — substance information

Sodium chlorite

HMT May 2026
UN / ID
UN 1496
Hazard class
5.1
Packing group
II
ERG guide
ERG 143
Special provisions
SP A9, SP IB8, SP IP2, SP IP4, SP N34, SP T3, SP TP33
Source
49 CFR §172 (2026/05)

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Sodium chlorite


Sodium chlorite (NaClO2) is a chemical compound used in the manufacturing of paper and as a disinfectant. Wikipedia

Substance Data

Source: PubChem (HSDB, 02.12.2019)

CAS-Number

7758-19-2

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 143

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

5.1
Oxidizers

(4) Identification number Help

UN 1496

(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
IB8
IP2
IP4
N34
T3
TP33

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

(8A) Exceptions152see 49 CFR §173.152
(8B) Non-bulk212see 49 CFR §173.212
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail5 kg
(9B) Cargo aircraft only25 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

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.