In the CRW exercise with Sodium Aluminum Sulphate and water, which hazard is predicted?

In the CRW exercise with Sodium Aluminum Sulphate and water, which hazard is predicted?

• A. Reaction products may be toxic
• B. Reaction products may be corrosive
• C. Exothermic reaction at ambient temperatures
• D. Reaction generates gas that may cause pressurization

Answer: (D)

Gas generation during the reaction with water can build up pressure in a closed vessel. When Sodium Aluminum Sulphate interacts with water, gaseous products can evolve, and in a constrained container that gas increases internal pressure. This pressurization risk is what the CRW scenario targets, because a sealed or poorly vented system can vent or even rupture as gas accumulates. So the main concern here is the potential for gas evolution to cause pressure buildup, rather than just heat release or formation of corrosive products. Other hazards could occur in different conditions, but gas-driven pressurization is the key takeaway for this scenario.

Gas generation during the reaction with water can build up pressure in a closed vessel. When Sodium Aluminum Sulphate interacts with water, gaseous products can evolve, and in a constrained container that gas increases internal pressure. This pressurization risk is what the CRW scenario targets, because a sealed or poorly vented system can vent or even rupture as gas accumulates. So the main concern here is the potential for gas evolution to cause pressure buildup, rather than just heat release or formation of corrosive products. Other hazards could occur in different conditions, but gas-driven pressurization is the key takeaway for this scenario.