1st question - does Sulfuric Acid meet the definition (NFPA) as "Water Reactive?"
From NFPA 400 Water-reactive material. A material that explodes, violently reacts, produces flammable, toxic or other hazardous gases; or evolves enough heat to cause self-ignition of nearby combustibles upon exposure to water or moisture.
Select items from the SDS:
2.1 Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
Corrosive to Metals (Category 1), H290
Skin corrosion (Category 1A), H314
Serious eye damage (Category 1), H318
2.3 Hazards not otherwise classified (HNOC) or not covered by GHS - none
5.1 Extinguishing media
Suitable extinguishing media
Use extinguishing measures that are appropriate to local circumstances and the
surrounding environment.
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.
10.3 Possibility of hazardous reactions
A risk of explosion and/or of toxic gas formation exists with the following substances:
[Lots of stuff, but water not one of them]
2.1 Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
Acute toxicity, Inhalation (Category 2), H330
Skin corrosion (Category 1A), H314
Serious eye damage (Category 1), H318
Specific target organ toxicity - single exposure (Category 3), Respiratory system, H335
2.3 Hazards not otherwise classified (HNOC) or not covered by GHS
Reacts violently with water.
5.1 Extinguishing media
Suitable extinguishing media
Dry powder
10.3 Possibility of hazardous reactions
Reacts violently with water.
Jeff