What risk arises from exposing silicone lubricants to high concentrations of oxygen under pressure?

When silicone lubricants are exposed to high concentrations of oxygen under pressure, they can become a fire and explosion risk. This is primarily due to the fact that oxygen-rich environments can drastically alter the properties of the lubricant, especially at elevated pressures. In these conditions, the silicone material can degrade or react, potentially leading to combustion.

Silicone lubricants are not inherently flammable, but the presence of high levels of oxygen can change that dynamic. In scuba diving environments, where oxygen levels can significantly increase, using inappropriate lubricants can result in dangerous situations. Thus, the appropriate choice regarding this risk involves acknowledging that silicone lubricants can pose a significant fire and explosion hazard when improperly utilized in situations involving high-pressure oxygen.