Nice catch on the NFPA Diamond. It's rated as 3 (Health) - 4 (Fire) - 1 (Instability) - W "Use no water" This is a very odd NFPA code, because instability 2 is automatic when it chemically reacts to water. In order to be "1" it can only have a reaction under high heat. In otherwords combining W and instability 1 means it will react to water, but only when there is high heat.

I found no common chemicals that meets a 3-4-1-W code:

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-A-C.htm

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-D-I.htm

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-J-R.htm

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-S-Z.htm

Nice catch on the NFPA Diamond. It's rated as 3 (Health) - 4 (Fire) - 1 (Instability) - W "Use no water" This is a very odd NFPA code, because instability 2 is automatic when it chemically reacts to water. In order to be "1" it can only have a reaction under high heat. In otherwords combining W and instability 1 means it will react to water, but only when there is high heat.

I found no common chemicals that meets a 3-4-1-W code: https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-A-C.htm https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-D-I.htm https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-J-R.htm https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-S-Z.htm

Nice catch on the NFPA Diamond. It's rated as 3 (Health) - 4 (Fire) - 1 (Instability) - W "Use no water"

This is a very odd NFPA code, because instability 2 is automatic when it chemically reacts to water. In order to be "1" it can only have a reaction under high heat. In otherwords combining W and instability 1 means it will react with high heat AND water.

I found no common chemicals that meets a 3-4-1-W code:

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-A-C.htm

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-D-I.htm

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-J-R.htm

https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-S-Z.htm

Nice catch on the NFPA Diamond. It's rated as 3 (Health) - 4 (Fire) - 1 (Instability) - W "Use no water"

This is a very odd NFPA code, because instability 2 is automatic when it chemically reacts to water. In order to be "1" it can only have a reaction under high heat. In otherwords combining W and instability 1 means it will react with high heat AND water.

I found no common chemicals that meets a 3-4-1-W code: https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-A-C.htm https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-D-I.htm https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-J-R.htm https://www.northeastern.edu/ehs/wp-content/uploads/2016/04/NFPA-Hazard-Rating-Information-for-Common-Chemicals-S-Z.htm