Trivia

Hard

Naturally Occurring Rubber Is What Color?

White
Green
Black
Pink
Latex that is being collected from a rubber tree.
Mohd Hafiz Noor Shams/ Wikimedia

Answer: White

Natural rubber is created from latex fluids harvested from rubber trees and other plant species in various regions around the world. Latex is a milky colloidal fluid that, in its pure form, dries to form a white natural rubber—the pale color of latex gloves long used in the medical profession reflect this and early automobile tires were also a white tone in color.

Why, then, are so many rubber products today dark? Why are rubber stoppers, rubber feet on electronics, and rubber tires all charcoal black? While natural rubber is great for things like water resistance, it isn’t particularly durable. In fact, its default flexibility is actually a hindrance in applications, like tires, where durability is more important than extreme flexibility. In such cases, the rubber is vulcanized, a chemical process wherein the rubber is heated and sulfur, peroxide, or bisphenol is added to harden the rubber and increase its durability (carbon black was often used before World War II).

More Trivia Questions

Trivia

Hard

The Concept of “Type A” and “Type B” Personalities Was Injected Into Pop Culture Thanks To?

Trivia

Hard

The Introduction Of What Arcade Game Caused a Massive Coin Shortage?

Trivia

Hard

What Was The Oldest Living Organism Ever Discovered?

Trivia

Hard

Which Spacecraft Was The First To Autonomously Return Extraterrestrial Samples to Earth?

Trivia

Hard

Boulders Left Behind By Glaciers Are Known As?

Trivia

Hard

Which Iconic Sci-Fi Film Was Snubbed For An Academy Award Over CGI Effects?

Trivia

Hard

The Largest “Hidden Mickey” In The World Is A?

Trivia

Hard

The First Volunteer Computing Project Was Focused On?

Trivia

Very Hard

Spikes In Electrical Usage During Television Breaks Are Known As?