Help!!
I've had methylene blue spilt on my prep room floor. I've soaked up all the liquid, but how do i get rid of the nasty stain. Any suggestions?
Methylene Blue Spill
- Wayne
- Posts: 305
- Joined: 17 May 2006, 10:00
- School: Mount Carmel College
- Suburb: Sandy Bay
- State/Location: TAS
Methylene Blue Spill
Last edited by Wayne on 21 Jun 2006, 15:35, edited 1 time in total.
Methylene blue stains
Spinkle area with zinc dust. Then add some 1M HCl. Puddle this around with your fingers (use gloves if you are worried by 1M HCl), rubbing the surface of the floor. If it stops fizzing add a bit more HCl. Keep it up until stain goes. You may be left with a slight residual colouring, depending how strongly the dye is adsorbed on the flooring material. The hydrogen produced from acid on zinc acts to reduce double bonds in the dye molecule. This method can be used to decolour or "bleach" many dyes.
Good Luck
Wombat
Good Luck
Wombat
- Mother
- Posts: 275
- Joined: 17 May 2006, 10:00
- Job Title: Science lab. technician
- School: Dubbo College/Senior Campus
- Suburb: Dubbo
- State/Location: NSW
Methylene Blue stains
Hi Wombat
Just a question-Do you mean zinc powder?
Just a question-Do you mean zinc powder?
Methylene blue stains
Mother
Yes, I meant zinc powder
Wombat
Yes, I meant zinc powder
Wombat
Methylene Blue Spill
Any dilute acid will be suffice, 0.5M HCl will certainly do the trick.
Dr Robert Crosdale. MRACI. NSS. NSSA. NASA.
Ph.D (Chem), Post Grad Ph.D (Physics), M.Ed, B.Sc (Hons), Dip. Appl. Sc. (Chem)
Lake Munmorah High School.
University of New England.
University of New South Wales.
University of Newcastle.
To understand the Universe from our perspective, we need to look towards our own backyard first for answers.
** AD ASTRA PER ASPERA - SEMPER EXPLORO **
Ph.D (Chem), Post Grad Ph.D (Physics), M.Ed, B.Sc (Hons), Dip. Appl. Sc. (Chem)
Lake Munmorah High School.
University of New England.
University of New South Wales.
University of Newcastle.
To understand the Universe from our perspective, we need to look towards our own backyard first for answers.
** AD ASTRA PER ASPERA - SEMPER EXPLORO **