Making a dye from scratch and coloring socks!
445.8 هزار بار بازدید -
7 سال پیش
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Today, I'm going to be exploring the science of azo dyes. This class of dyes is one of the most popular and it is used to dye clothing in a unique way. It is based on a reaction known as "azo coupling" where two dye components are developed directly on/in the textile fibers. The Para Red is not the best though and it is very prone to rubbing off and washing away. Because of this, other dyes are often used instead. Also, I used only one dye here, but combinations can sometimes be used to increase the vibrancy and "richness" of the color.
Both of the main starting chemicals can be made completely from scratch:
• p-nitroaniline: sodium benzoate -- benzene -- nitrobenzene -- aniline -- acetanilide -- p-nitroaniline
• 2-naphthol: naphthalene (moth balls) -- 2-naphthol
For the p-nitroaniline, I've done all the reactions in various videos over the years. The sodium benzoate that I start with is a very cheap and easy to get food preservative. I might make the 2-naphthol in a future video.
References:
• p-nitroaniline video: Making a Mysterious Foam
• Sulfuric acid video: Purifying Sulfuric Acid Drain Cleaner
• Procedure reference: https://goo.gl/U9iDKb
Giveaway winners have been drawn and all packages have already been shipped out. Thanks to everyone who participated!
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(when signing up with this link, a portion of your membership directly supports the channel)
Join the community:
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Nile talks about lab safety: Chemistry is dangerous.
Music in credits (Walker by SORRYSINES): SoundCloud: walker
Today, I'm going to be exploring the science of azo dyes. This class of dyes is one of the most popular and it is used to dye clothing in a unique way. It is based on a reaction known as "azo coupling" where two dye components are developed directly on/in the textile fibers. The Para Red is not the best though and it is very prone to rubbing off and washing away. Because of this, other dyes are often used instead. Also, I used only one dye here, but combinations can sometimes be used to increase the vibrancy and "richness" of the color.
Both of the main starting chemicals can be made completely from scratch:
• p-nitroaniline: sodium benzoate -- benzene -- nitrobenzene -- aniline -- acetanilide -- p-nitroaniline
• 2-naphthol: naphthalene (moth balls) -- 2-naphthol
For the p-nitroaniline, I've done all the reactions in various videos over the years. The sodium benzoate that I start with is a very cheap and easy to get food preservative. I might make the 2-naphthol in a future video.
References:
• p-nitroaniline video: Making a Mysterious Foam
• Sulfuric acid video: Purifying Sulfuric Acid Drain Cleaner
• Procedure reference: https://goo.gl/U9iDKb
Giveaway winners have been drawn and all packages have already been shipped out. Thanks to everyone who participated!
-------------------------------------------------------------------------------
Merch - https://nilered.tv/store
-------------------------------------------------------------------------------
■ NileRed is now available on Nebula! https://go.nebula.tv/nilered
(when signing up with this link, a portion of your membership directly supports the channel)
Join the community:
Patreon - Patreon: nilered
Discord - Discord: discord
NileRed Newsletter - https://nile.red/home#newsletter
You can also find me here:
Facebook - Facebook: NileRed2
Instagram - Instagram: nile.red
Twitter - Twitter: NileRed2
Nile talks about lab safety: Chemistry is dangerous.
Music in credits (Walker by SORRYSINES): SoundCloud: walker
7 سال پیش
در تاریخ 1396/07/23 منتشر شده
است.
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