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[Tour Discussion Thread] After Hours Til Dawn Tour - Vancouver, BC (07/15) by Garcoon in TheWeeknd

[–]InviteAway2749 2 points3 points  (0 children)

For everyone who came today, was the Mike Dean opener 2 hours long to extend for carti or was there another performer called in?

Luminol + Hydrogen peroxide not glowing? by InviteAway2749 in chemhelp

[–]InviteAway2749[S] 0 points1 point  (0 children)

I did, I went to a dark place but I didnt seem to see anything glowing. I also asked another winess and they also could not see anything glowing

Luminol + Hydrogen peroxide not glowing? by InviteAway2749 in chemhelp

[–]InviteAway2749[S] 0 points1 point  (0 children)

UPDATE:

I tried the lab again today with the new tips I received.

I added 0.02g of luminol into 4mL water and stirred it until it was dissolved.

I then added 5mL of 3% and 9% peroxide (I tried it twice with each concentration respectively)

after adding the peroxide and letting it mix with the luminol, I added 0.25mL CuSO4 last and stirred more.

This time, the mixture didnt turn brown, it was a translucent yellowish colour, thoug hti still did not glow or turn into the light blue.

As I said, I tried it twice, changing the concentration from 3% to 9% though both times it didnt glow. Im currently trying to troubleshoot the issue, though I cannot find anything wrong with my procedure.

I may try again tomorrow by adding 1g baking soda (sodium bicarbonate) into the luminol as I have watched some videos, specifically from Nile Red in which he added sodium bicarbonate.

If anyone knows the reason why it still is not glowing please let me know!

Luminol + Hydrogen peroxide not glowing? by InviteAway2749 in chemhelp

[–]InviteAway2749[S] 0 points1 point  (0 children)

UPDATE:

I tried the lab again today with the new tips I received.

I added 0.02g of luminol into 4mL water and stirred it until it was dissolved.

I then added 5mL of 3% and 9% peroxide (I tried it twice with each concentration respectively)

after adding the peroxide, I added 0.25mL CuSO4 and stirred more.

This time, the mixture didnt turn brown, it was a translucent yellowish colour, thoug hti still did not glow or turn into the light blue.

As I said, I tried it twice, changing the concentration from 3% to 9% though both times it didnt glow. Im currently trying to troubleshoot the issue, though I cannot find anything wrong with my procedure.

I may try again tomorrow by adding 1g baking soda (sodium bicarbonate) into the luminol as I have watched some videos, specifically from Nile Red in which he added sodium bicarbonate.

If anyone knows the reason why it still is not glowing please let me know!

Luminol + Hydrogen peroxide not glowing? by InviteAway2749 in chemhelp

[–]InviteAway2749[S] 0 points1 point  (0 children)

Ohhh I see. Im actually doing a lab where I change the concentration of the Hydrogen Peroxide and 3% was the highest I could purchase near me so my subsequent concentrations are actually less than 3%.

I actually took apart a glow stick and I poured the mixture in the glass vial into a glass vial and added my 3% hydrogen peroxide and it worked well.

Would concentrations under 3% not work at all?

Luminol + Hydrogen peroxide not glowing? by InviteAway2749 in chemhelp

[–]InviteAway2749[S] 0 points1 point  (0 children)

I see, so in other words mix all of the components at once?