Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Miscellaneous

Why is laundry detergent blue?

1 Answer

Laundry detergent is blue, due to Optical Brightening Agents, which leave a light blue tint, because blue emits more visible light than white does alone, preventing an appearance of dinginess. This is a concept which dates to at least the mid-1800s, when it was called “bluing”.

{{ relativeTimeResolver(1645049829476) }}

LIVE
Points points 66
Rating

Similar Questions
Miscellaneous 1 Answer
Miscellaneous 1 Answer
Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE
Miscellaneous 2 Answers
Miscellaneous 1 Answer
Miscellaneous 1 Answer
Miscellaneous 1 Answer
Miscellaneous 1 Answer
Miscellaneous 1 Answer
Miscellaneous 1 Answer

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE