HazMat Tool — substance information

Fulminating silver

HMT May 2026
UN / ID
n/a
Hazard class
Forbidden
Packing group
ERG guide
Special provisions
Source
49 CFR §172 (2026/05)

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Fulminating silver


Fulminating silver is a historic name which may apply to a number of silver based explosives which "fulminate" or detonate easily and violently. It has no exact chemical or dictionary definition, but may refer to: silver fulminate (which, confusingly, is the only "fulminating silver" to be a silver compound with the fulminate anion) silver azide, AgN3 a mixture, a decomposition product of Tollens' reagent silver nitride, Ag3N - one of the earliest silver based explosives the alchemical substance "Argentum Fulminans" The stability of many of these compounds can vary depending on how they are stored or handled, with levels of hydration often being a major factor. Wikipedia

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

(4) Identification number Help

n/a

(5) Packing Group Help

n/a

(6) Labels Help

n/a

(7) Special Provisions (§172.102) Help

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

(8A) Exceptions n/asee 49 CFR §173. n/a
(8B) Non-bulk n/asee 49 CFR §173. n/a
(8C) Bulk n/asee 49 CFR §173. n/a

(9) Quantity Limits Help

(9A) Passenger aircraft/rail n/a
(9B) Cargo aircraft only n/a

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

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.

Similar substances

UN / IDProper shipping nameHazard class
UN 0135Mercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass1.1A
Fulminate of mercury (dry)Forbidden
Fulminating goldForbidden
Fulminating mercuryForbidden
Fulminating platinumForbidden
Silver fulminate (dry)Forbidden