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Author: Subject: Latest chemical order?
outer_limits
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[*] posted on 6-8-2020 at 05:11


Benzene, magnesium, chromic anhydride, diethyl ether, acetone

It's time to do some Grignard reactions :D

Currently I don't have currently any idea for chromic anhydride but sometimes strange things happen and I bought it somehow :D




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JJay
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[*] posted on 6-8-2020 at 17:43


I have been meaning to get some lithium.... It's not cheap, but a little goes a long way.
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B(a)P
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[*] posted on 7-8-2020 at 02:26


As j_sum1 indicates, you can obtain lithium from batteries. It is relatively straight forward to do.
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[*] posted on 7-8-2020 at 06:42


Quote: Originally posted by B(a)P  
As j_sum1 indicates, you can obtain lithium from batteries. It is relatively straight forward to do.

Can't batteries explode under certain conditions that could occur when you are opening one?




Collected elements:
Al, Cu, Ga, C (coal), S, Zn, Na

Collected compounds:

Inorganic:
NaOH; NaHCO3; MnCl2; MnCO3; CuSO4; FeSO4; aq. 30-33% HCl; aq. NaClO; aq. 9,5% ammonia; aq. 94-96% H2SO4; aq. 3% H2O2

Organic:
citric acid, sodium acetate, sodium citrate, petroleum, mineral oil
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B(a)P
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[*] posted on 7-8-2020 at 11:50


Quote: Originally posted by Draeger  

Can't batteries explode under certain conditions that could occur when you are opening one?


Yes they can. To mitigate the risk use batteries that are low on charge, understand what the positive and negative terminals are and avoid shorting them and wear nitrile gloves and monitor the temperature of the battery frequently. If it starts to get hot put it outside or in the hood on a flame proof dish.
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[*] posted on 13-8-2020 at 20:48


Picked up today at Science Essentials in Brisbane:
- Formic acid 90%, AR grade, 500ml.
- Cobalt sulphate CoSO4.7H2O about 200g
- Cobalt oxide CoO 25g
- Cobalt oxide mix of Co2O3 and Co3O4 25g
For local members: Science Essentials received new stock of Formic acid. More or less A$50 for 500ml or $170 for 2.5L.
Glycine already on order from eBay, 200g. But I should have got it from Science Essentials it would have been a bit cheaper.

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[*] posted on 19-8-2020 at 10:02


This week:
- 80 TLC plates
- 50 keck clips from ebay (in "normal" online shops they are 4-6 times more expensive than from China)
- stronger fume hood blower - this one sucks giving almost 0.6m/s of face velocity with sash fully opened (50cm). This will make everything a bit more comfortable. Previous one was only 0.3 m/s at same sash positionig



[Edited on 19-8-2020 by outer_limits]
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[*] posted on 24-8-2020 at 20:30


Tribasic calcium phosphate
Sodium bromide
Tartaric acid
Tin (ingot)
Zinc oxide
3A molecular seives
Strontium carbonate
Sodium borohydride
Nickel chloride
Sodium acetate
Sodium bisulfate
4-hydroxy TEMPO
Formalin
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[*] posted on 31-8-2020 at 03:30


I ordered 4 liters of clean colorless H2SO4 (96%). I still have some H2SO4, but I want to be sure to have some stock for the upcoming years. These 4 liters, together with the well over 2 liters I still have will last a long time for me.

I also purchased a whole set of rather tame chemicals. I have no real application for them in mind, but they were so cheap (so-called new old stock, just a few euros per chemical, all of them A.R. grade in original, still sealed bottle) that I decided to buy the lot:
1 kg of sodium monochloroacetate
1 kg of sodium hydrogen succinate
500 grams of monosodium dihydrogen orthophosphate
500 grams of disodium monohydrogen orthophosphate
500 grams of disodium dihydrogen pyrophosphate
500 grams of sodium metabisulfite
500 grams of sodium thiosulfate 5-hydrate
250 grams of dibutylhydroxytoluene (BHT)
All of these chemicals are quite unreactive. The bottles had tattered labels, but the contents of the bottles is nearly pristine.

If any of you have some interesting ideas for applications of these chemicals, that would be nice.

[Edited on 31-8-20 by woelen]




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[*] posted on 31-8-2020 at 07:10


Phosphate and pyrophosphate can be used as complexing agent for Mn(III). Just dissolve phosphate/pyrophosphate with MnSO4 and sulfuric acid and then add some permanganate. You'll obtain red solution. Pyrophosphate is better for this purpose, you need just a small amount of acid for reaction go forward. With phosphate you need much more acid. These complexes are one of few Mn(III) complexes stable in aqueous solution.

Pyrophosphate is also good complexing agent for divalent cations.

Try synthesis of cobalt phosphate, ammonium cobalt phosphate and cobalt pyrophosphate. First is violet, second is purple and third is pink.




If you are interested in aqueous inorganic chemistry look at https://colourchem.wordpress.com/main-page/

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[*] posted on 31-8-2020 at 10:43


Sodium thiosulfate is good for neutralizing halogens. BHT is good for stabilizing ether. Sodium metabisulfite has several uses... generating sulfur dioxide, neutralizing hexavalent chromium, purifying aldehydes and ketones.

The orthophosphates are good for making buffer solutions. You could make succinic acid and succinimide from the sodium hydrogen succinate.

I forgot to mention that I also got some platinum, one troy ounce.



[Edited on 31-8-2020 by JJay]
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[*] posted on 5-9-2020 at 07:01


I recently obtained some old lab stuff.

KBrO3

100g NaClO4

250g NaBiO3

500g KSCN

KSb tartrate

1kg Borax

500g Phenol

100g Glycine

1kg Na2H2edta

5g CsCl

[Edited on 5-9-2020 by Bedlasky]




If you are interested in aqueous inorganic chemistry look at https://colourchem.wordpress.com/main-page/

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[*] posted on 11-9-2020 at 08:08


500g Na2S2O8

Lets make some sodium orthoperiodate :P.




If you are interested in aqueous inorganic chemistry look at https://colourchem.wordpress.com/main-page/

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[*] posted on 13-9-2020 at 20:42


Just received 500 mL of cyclohexanol from mario. I'll be using it to make cyclohexyl esters and follow some fun Vogel's procedures like preparation of cyclohexene.

I was surprised to find out from MSDS that cyclohexanol is slightly toxic, compared to straight chain alcohols. It's even a possible co-carcinogen. Now I'm wondering if cyclohexyl esters are safe.

Edit: sigma aldrich sells cyclohexyl esters as food grade flavoring agents so they are safe.

[Edited on 9-15-2020 by Cou]




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[*] posted on 14-9-2020 at 10:53


Cou, also allylalcohol is much more toxic than other alcohols.
My latest acquisition: 5,0 g AuCl3 (10 ampoules x 0,5g) intended mostly for gold electroplating.

IMG_20200914_204546_3_sm.jpg - 43kB




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[*] posted on 22-9-2020 at 12:21


Just received confirmation of an order I made last night. Clearly I was more tired than I thought.
I saw a special on 100 nm Al powder and jumped on it, only $9.95AU for what I thought was 50 g. Turns out I purchased 1 g :P
What I was really after was 500 g of Barium chloride dihydrate AR, which apparently, I was successful in purchasing :D.

Edit: fixed spelling

[Edited on 22-9-2020 by B(a)P]
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[*] posted on 22-9-2020 at 13:57


250 mL of nonanoic acid



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[*] posted on 23-9-2020 at 10:08


Cou, which ester are you planning to synthesize from your nonanoic acid?



If there is a heaven, it seems not to be materially based. Does chemistry exist there and if yes, how does it look like? Are there good souls well supplied with laboratory equipment, glass, chemicals and information?
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[*] posted on 23-9-2020 at 10:28


Quote: Originally posted by Fery  
Cou, which ester are you planning to synthesize from your nonanoic acid?

Probably pentyl nonanoate. It's supposed to smell like apricot or roses.




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[*] posted on 23-9-2020 at 12:47


Quote: Originally posted by Cou  

Probably pentyl nonanoate. It's supposed to smell like apricot or roses.


That will definitely be an improvement on nonanoic acid :D
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[*] posted on 23-9-2020 at 12:53



Propionyl chloride, 100g
Isobutyryl chloride 100g
Acetyl chloride, 250ml
Benzoyl chloride, 250g
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU), 25g



[Edited on 9-23-2020 by Cou]




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[*] posted on 24-9-2020 at 08:48


Cou, did you buy those from mario?

edit: just checked out your website, the page where you can chose the components of an ester is really cool!

[Edited on 9-24-2020 by njl]
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[*] posted on 25-9-2020 at 13:17


Quote: Originally posted by B(a)P  
Quote: Originally posted by Cou  

Probably pentyl nonanoate. It's supposed to smell like apricot or roses.


That will definitely be an improvement on nonanoic acid :D


the low vapor pressure of nonanoic acid makes it not so horrible (unlike a bottle of butyric acid, which will stink up a whole room even if kept in a sealed bottle). Nonanoic acid has a faint rancid cheese smell, or dirty socks

[Edited on 9-25-2020 by Cou]




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[*] posted on 25-9-2020 at 13:25


Quote: Originally posted by Cou  


the low vapor pressure of nonanoic acid makes it not so horrible (unlike a bottle of butyric acid, which will stink up a whole room even if kept in a sealed bottle). Nonanoic acid has a faint rancid cheese smell, or dirty socks



That is interesting thanks, I always thought it was much worse than that.
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[*] posted on 29-9-2020 at 11:31


20 liters of concentrated bleach
1 liter of 50% benzalkonium chloride

Ready for another lockdown :)

And some sodium thiosulfate, sodium bromide, H2SO4...




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