This episode is all about corrosives - we chat about what they are, the different names they go by, and how to deal with them safely. We’re putting the spotlight on how to transport these substances, so if you’re curious about the ins and outs, you’re in the right place. And if you want more background, check out our earlier deep-dive episodes!

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Episode Overview

In this episode, the team delves deep into the world of Class 8 hazardous materials—Corrosives. From the DOT’s technical definitions to real-world case examples and tactical response strategies, the hosts walk through everything you need to know about acids, bases, and their potentially devastating impacts. Whether you're a seasoned hazmat responder or a student learning the ropes, this episode brings corrosives to life with educational insights, field anecdotes, and safety tips.

Segment Breakdown & Timestamps

00:00 – Intro Banter

Casual opening and show setup.

04:16 – Class 8 Overview

Introduction to Class 8: What qualifies as a corrosive under DOT rules and how to identify them.

05:40 – Common Corrosive Materials

Discussion of typical corrosives: sulfuric acid, sodium hydroxide, hydrochloric acid, nitric acid.

06:08 – Placards, Labels & Identification

Visual and numeric identifiers: what Class 8 placards look like and how UN numbers work.

07:10 – Containers and Clues

Storage and transport methods, plus physical warning signs such as fumes or metal corrosion.

08:33 – Predictive Modeling & Terminology

Understanding chemical reactions and the importance of proper terminology (burns vs. corrosion).

09:35 – Acids vs. Bases

The chemistry, hazards, and behaviors of acids and bases, including real-world uses and dangers.

11:22 – Reactivity & Secondary Hazards

Potential for violent reactions, toxic gas releases, and incompatibility issues.

13:14 – Real-Life Lab Mistakes

Personal story about improper acid-water mixing in lab leading to thermal burns.

16:44 – Acid Attacks & Real-World Trauma

Discussion of acid attacks in NYC and the long-term effects on victims.

18:52 – pH Measurement & Extreme Examples

Exploration of pH, including unusual cases like Iron Mountain’s ultra-low pH spring.

20:12 – Forms, Vapors, and Reactions

How corrosives behave in gas, liquid, and solid form. Importance of thermal imaging.

22:01 – The Outlier: Hydrofluoric Acid

Unique dangers of hydrofluoric acid and its calcium-seeking properties.

23:04 – Strategy & Tactics for Responders

Best practices for monitoring, PPE, zone setup, and dealing with contaminated scenes.

26:22 – Neutralization & Decon

Use of dry agents, soda ash, and dry decon methods—do's and don’ts.

28:18 – Hot Zone Setup and Evacuation Considerations

How topography and chemical behavior influence hot zone strategy.

30:46 – Final Decon & Tool Use

Summary of decon strategies, monitoring advice, and proper equipment handling.