A resource for emergency response and safety personnel for over two decades, the DVD-based program Sodium Hydroxide & Potassium Hydroxide has been updated and re­released by the Edgartown company Emergency Film Group.

Sodium hydroxide and potassium hydroxide are the two most widely used caustics, strong alkaline chemicals corrosive to many materials including human tissue. These caustics also have been used in the illegal manufacture of homemade bottle bombs, a recent problem for first responders.

Emergency Film Group uses professionals in emergency response and film production to create authoritative and accurate training programs for fire departments, hazmat teams, emergency management, police, EMS, the military and other emergency responders. Winner of more than 140 awards, the company provides training on incident management, terrorism response, homeland security, hazardous materials, protective clothing and air monitoring for its more than 14,000 customers.