Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
 Pages:  1  ..  53    55    57  ..  60
Author: Subject: Latest chemical order?
Piroz
Harmless
*




Posts: 19
Registered: 15-12-2020
Location: Poland
Member Is Offline


[*] posted on 24-12-2020 at 04:26


I don't remember what was the last order, I got 4 boxes in short time in March/April:
1st box:
-oxalic acid 1kg
-glucose 3kg
-cerium oxide 50g
-borax 1kg
-nickel sulfate 500g
2nd box:neodymium magnets
3rd box:
potassium iodide 50g
lithium sulfate 50g
cobalt sulfate 100g
potassium hexacyanoferrate(II)- 500g
EDTA acid 500g
manganese sulfate 250g
chromium(III) sulfate 50g
iron(III) chloride solution 1L
4th box: glassware

Unboxing packs: https://youtu.be/_nTbEbuCkCs






[Edited on 24-12-2020 by Piroz]

[Edited on 24-12-2020 by Piroz]
View user's profile View All Posts By User
Cou
National Hazard
****




Posts: 958
Registered: 16-5-2013
Member Is Offline

Mood: Mad Scientist

[*] posted on 24-12-2020 at 17:29


500 grams of potassium permanganate from amazon, for making elemental bromine.



my youtube channel, organic chemistry videos: https://www.youtube.com/channel/UC0qzaRyHxLUOExwagKStYHw
View user's profile View All Posts By User
valeg96
Hazard to Others
***




Posts: 254
Registered: 6-4-2014
Location: Italy
Member Is Offline

Mood: Moodless

[*] posted on 25-12-2020 at 07:56


Quote: Originally posted by Piroz  

3rd box:
potassium iodide 50g
lithium sulfate 50g
cobalt sulfate 100g
potassium hexacyanoferrate(II)- 500g
EDTA acid 500g
manganese sulfate 250g
chromium(III) sulfate 50g
iron(III) chloride solution 1L


Lucky polish boy! Warchem won't ship to Italy, so the most I can get from poland is Hadron Scientific stuff from Allegro... which is nowhere near what they offer on their polish website...





View user's profile Visit user's homepage View All Posts By User
DBX Labs
Hazard to Self
**




Posts: 57
Registered: 24-12-2020
Member Is Offline


[*] posted on 25-12-2020 at 08:19


Zinc Dust - 2 micron flake
3 lbs Guanidine Nitrate




View user's profile View All Posts By User
Cou
National Hazard
****




Posts: 958
Registered: 16-5-2013
Member Is Offline

Mood: Mad Scientist

[*] posted on 25-12-2020 at 14:12


25 grams of indole - for fragrance collection
100 grams of zinc granules - for reducing ketones to alcohols
340 grams of potassium carbonate - for williamson ether synthesis




my youtube channel, organic chemistry videos: https://www.youtube.com/channel/UC0qzaRyHxLUOExwagKStYHw
View user's profile View All Posts By User
roXefeller
Hazard to Others
***




Posts: 463
Registered: 9-9-2013
Location: 13 Colonies
Member Is Offline

Mood: 220 221 whatever it takes

[*] posted on 25-12-2020 at 16:57


Haha DBX I think I know where you're going. I went with guanidine thiocyanate it was easily available.



One must forego the self to attain total spiritual creaminess and avoid the chewy chunks of degradation.
View user's profile View All Posts By User
violet sin
International Hazard
*****




Posts: 1482
Registered: 2-9-2012
Location: Daydreaming of uraninite...
Member Is Offline

Mood: Good

[*] posted on 4-1-2021 at 18:42


I ordered a bit of Strontium, and a tad of Iodine for my collection. Only had mixed compounds for examples of those elements in my collection up untill a couple hours ago.

IMG_20210104_182523984.jpg - 2.6MB

:D don't know why it shows the thumbnail upside down, pic is correct.
View user's profile View All Posts By User
Fery
International Hazard
*****




Posts: 1026
Registered: 27-8-2019
Location: Czechoslovakia
Member Is Offline


[*] posted on 14-1-2021 at 07:15


Quote: Originally posted by woelen  
I purchased 100 grams of arsenic sulfide, As2S3, for the amazingly low price of just $9.99 (appr. EUR 8.50), including shipping. The order arrived last week and today I tested its purity. I am really impressed about the purity of this product of natural origin. This material easily dissolves in dilute warm NaOH, and the solution is completely clear, and very pale yellow. No insoluble crap or turbid solution as one normally would expect from natural minerals.
https://nl.aliexpress.com/item/33017545866.html

Today I received 200 g of the orpiment ore (As2S3), woelen thank you very much for the info and link you provided.




View user's profile Visit user's homepage View All Posts By User
Cou
National Hazard
****




Posts: 958
Registered: 16-5-2013
Member Is Offline

Mood: Mad Scientist

[*] posted on 23-1-2021 at 01:24


for making ethers:
500 grams of bromobutane

solvent:
250 mL of methyl tert-butyl ether




my youtube channel, organic chemistry videos: https://www.youtube.com/channel/UC0qzaRyHxLUOExwagKStYHw
View user's profile View All Posts By User
paulll
Hazard to Others
***




Posts: 112
Registered: 1-5-2018
Member Is Offline

Mood: It's fine. Really.

[*] posted on 26-1-2021 at 14:14




Extractions and esters coming up. (Thanks for the lead, SHADYCHASE54!)
View user's profile View All Posts By User
woelen
Super Administrator
*********




Posts: 8027
Registered: 20-8-2005
Location: Netherlands
Member Is Offline

Mood: interested

[*] posted on 27-1-2021 at 00:11


Quote: Originally posted by woelen  
I now also ordered 100 grams of realgar, the red arsenic sulfide As4S4. Also from AliExpress for a really low price.

https://nl.aliexpress.com/item/1005001309126232.html

It will take a few weeks before it arrives, but I am not in a hurry. Always good to have a little more of this as well. I now only have 10 grams or so of this compound (very expensive on eBay).

The realgar also arrived after quiite a few weeks of waiting. But, again, I am quite happy with the material. It is in the form of big red/brown 'stones', as shown on the picture. The 'stones' are covered by orange powder (pararealgar, an allotrope, which is formed on exposure to light). I crushed some of the material and dissolved it in NaOH. It dissolves, as shown in my webpage, and gives dark brown, nearly black, elemental arsenic. So, this realgar also is a good buy for a good price!




The art of wondering makes life worth living...
Want to wonder? Look at https://woelen.homescience.net
View user's profile Visit user's homepage View All Posts By User
vano
National Hazard
****




Posts: 661
Registered: 22-3-2019
Location: Georgia
Member Is Offline


[*] posted on 10-2-2021 at 10:55


Not for element collection.

received_282665669589082.jpeg - 185kB




View user's profile View All Posts By User
Lion850
National Hazard
****




Posts: 517
Registered: 7-10-2019
Location: Australia
Member Is Offline

Mood: Great

[*] posted on 20-2-2021 at 01:45


Today I got the following - most old stock at low prices and some free.
- Chloroform 500ml
- Selenium powder 25g
- L-Cystine 500g
- Aluminium potassium sulphate (potash alum) 500g
- Lead dioxide 500g
- Potassium chromate 500g
- Copper (ii) sulphide 100g
- Sodium borohydride 100g. This is old stock: when I saw the rusty tin I was sceptical of the condition of the contents but the product is in a plastic bag in the tin and the inside of the tin is in good condition. Anyway, NaBH4 is not easy to get hold off so I was not going to pass it by :)


10.jpg - 834kB 11.jpg - 874kB
View user's profile View All Posts By User
vano
National Hazard
****




Posts: 661
Registered: 22-3-2019
Location: Georgia
Member Is Offline


[*] posted on 3-3-2021 at 04:28


Quote: Originally posted by Lion850  

- Selenium powder 25g


Mmm... Selenium is good. What will you make of it?




View user's profile View All Posts By User
arkoma
Redneck Overlord
*******




Posts: 1763
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
Member Is Offline

Mood: украї́нська

[*] posted on 10-3-2021 at 12:00


My cousin works as maintenance at a large poultry plant owned by a real recognizable brand from Arkansas, and bless his heart, he brought me a five gallon poly bucket of 98% H2SO4. I hear that there is some quite concentrated H2O2 there too..............

Now I have to SAFELY get it into smaller, manageable containers.




"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social status, nationality, citizenship, etc" z-lib

View user's profile View All Posts By User
AvBaeyer
National Hazard
****




Posts: 651
Registered: 25-2-2014
Location: CA
Member Is Offline

Mood: No Mood

[*] posted on 10-3-2021 at 18:11


Just purchased 1.5 pounds of 1,3-dibromo-5,5-dimethylhydantoin (DBDMH). Even though it has been off the market for a few years there still are a few places that have it. It does take a good bit of searching to find it.

AvB
View user's profile View All Posts By User
Fery
International Hazard
*****




Posts: 1026
Registered: 27-8-2019
Location: Czechoslovakia
Member Is Offline


[*] posted on 15-3-2021 at 07:43


I have to highly recommend S3 chemicals, a Germany-based company. They sell also to individuals some limited amount of reagents.
http://es-drei.de/
They ship to EU too.
Shipping cost to the neighboring country (from Germany to Czech republic) was 16,90 EUR for 9,5 kg parcel using DHL courier.

IMG_20210315_111505_8_sm.jpg - 35kB IMG_20210315_111623_7_sm.jpg - 34kB IMG_20210315_112727_1_sm.jpg - 31kB




View user's profile Visit user's homepage View All Posts By User
itsallgoodjames
Hazard to Others
***




Posts: 276
Registered: 31-8-2020
Location: America Lite
Member Is Offline


[*] posted on 15-3-2021 at 08:30


Quote: Originally posted by Refinery  
Not necessarily on this topic, but is it forbidden to trade stuff on this forum or request any specific items from other users?

Buying and selling stuff here is allowed and is pretty common if that's what you're asking




Nuclear physics is neat. It's a shame it's so regulated...

Now that I think about it, that's probably a good thing. Still annoying though.
View user's profile View All Posts By User
itsallgoodjames
Hazard to Others
***




Posts: 276
Registered: 31-8-2020
Location: America Lite
Member Is Offline


[*] posted on 16-3-2021 at 14:16


I just ordered 250ml of azeotropic nitric acid from chemship1978. I'll post a picture when it arrives. I know it's not the liters that some people have, but it's exciting, as I can finally do silver chem on scales larger than a few ml.



Nuclear physics is neat. It's a shame it's so regulated...

Now that I think about it, that's probably a good thing. Still annoying though.
View user's profile View All Posts By User
DraconicAcid
International Hazard
*****




Posts: 4355
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline

Mood: Semi-victorious.

[*] posted on 16-3-2021 at 14:53


I got 50 g of gallium, some for playing with, and some to use as a replacement for mercury in amalgam reductions.



Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
View user's profile View All Posts By User
Fery
International Hazard
*****




Posts: 1026
Registered: 27-8-2019
Location: Czechoslovakia
Member Is Offline


[*] posted on 17-3-2021 at 06:51


Hi DraconicAcid, pls post then your experiments, I'm very interested in them. I've bought a little of gallium as you, but it is yet only sitting in the vial, not yet time either experience to perform these reductions. I've bought also 1 kg of Sm as an alternative reducing agent, again I did not yet try anything with it. I have a lot of Hg but its toxicity discourages me so I would prefer less toxic ways.



View user's profile Visit user's homepage View All Posts By User
woelen
Super Administrator
*********




Posts: 8027
Registered: 20-8-2005
Location: Netherlands
Member Is Offline

Mood: interested

[*] posted on 19-3-2021 at 03:05


A full 2.5 kg of extra pure copper sulfate pentahydrate.

I intend to revisit copper chemistry in more detail now, with really pure reagents, and make new compounds, and also make all kinds of colorful complexes. I think it is possible to make a whole rainbow of colors with only copper as transition metal. If I have iteresting results, I certainly will make a web page about that.




The art of wondering makes life worth living...
Want to wonder? Look at https://woelen.homescience.net
View user's profile Visit user's homepage View All Posts By User
arkoma
Redneck Overlord
*******




Posts: 1763
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
Member Is Offline

Mood: украї́нська

[*] posted on 19-3-2021 at 23:23


10lbs of Potassium Nitrate powder from Walmart of all places. $34US delivered. Be worth a recrystallization, but won't need that for stuff like making Nitric Acid. Go nicely with the bucket of Sulfuric Acid I have.



"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social status, nationality, citizenship, etc" z-lib

View user's profile View All Posts By User
itsallgoodjames
Hazard to Others
***




Posts: 276
Registered: 31-8-2020
Location: America Lite
Member Is Offline


[*] posted on 20-3-2021 at 05:20


Quote: Originally posted by arkoma  
10lbs of Potassium Nitrate powder from Walmart of all places. $34US delivered. Be worth a recrystallization, but won't need that for stuff like making Nitric Acid. Go nicely with the bucket of Sulfuric Acid I have.


I'm jealous of you all in the US able to get chems so cheaply. I pay more than that for 1kg of potassium nitrate.




Nuclear physics is neat. It's a shame it's so regulated...

Now that I think about it, that's probably a good thing. Still annoying though.
View user's profile View All Posts By User
Fery
International Hazard
*****




Posts: 1026
Registered: 27-8-2019
Location: Czechoslovakia
Member Is Offline


[*] posted on 20-3-2021 at 08:11


in my country you can buy 25 kg KNO3 food grade for 71 EUR
https://fichema.cz/dusinan-draseln-kno3/2064-dusicnan-drasel...
or less pure (but still 99,8% which is very nice) for 55 EUR
https://fichema.cz/dusinan-draseln-kno3/591-dusicnan-draseln...




View user's profile Visit user's homepage View All Posts By User
 Pages:  1  ..  53    55    57  ..  60

  Go To Top