HazMat Tool — substance information
Sodium permanganate
HMT 15 June 2026Sodium permanganate
Sodium permanganate is the inorganic compound with the formula NaMnO4. It is closely related to the more commonly encountered potassium permanganate, but it is generally less desirable, because it is more expensive to produce. It is mainly available as the monohydrate. This salt absorbs water from the atmosphere and has a low melting point Wikipedia
Substance Data
Source: PubChemCAS-Number10101-50-5 |
Flash Pointn/a | Boiling Pointn/a |
| Emergency Response Guide No. 140 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard Class5.1Oxidizers |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(7) Special Provisions (§172.102)
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| IB6 | |
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| IP2 | |
| T3 | |
| TP33 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | 152 | see 49 CFR §173.152 |
|---|---|---|
| (8B) Non-bulk | 212 | see 49 CFR §173.212 |
| (8C) Bulk | 242 | see 49 CFR §173.242 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | 5 kg |
|---|---|
| (9B) Cargo aircraft only | 25 kg |
(10) Vessel stowage 
| (10A) Location | |
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| (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.
| 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![]() |
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8 ![]() |
| Must not be loaded, transported, or stored together in the same vehicle or facility. | |
| May be loaded, transported, or stored together. | |
| May be loaded, transported, or stored together only with restrictions. |
Similar substances
| UN / ID | Proper shipping name | Hazard class |
|---|---|---|
| UN 3214 | Permanganates, inorganic, aqueous solution, n.o.s | 5.1 |
| UN 1482 | Permanganates, inorganic, n.o.s | 5.1 |
| Ammonium permanganate | Forbidden | |
| UN 1448 | Barium permanganate | 5.1 |
| UN 1456 | Calcium permanganate | 5.1 |
| UN 1490 | Potassium permanganate | 5.1 |
| UN 1515 | Zinc permanganate | 5.1 |