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Author: Subject: Latest chemical order?
woelen
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[*] posted on 14-3-2019 at 08:03


Some rare chemicals:
- P4S10
- Re2O7
- Lu2O3

Besides that, I stocked up on some common chemicals:
- 450 grams of P.A. grade KMnO4
- 400 grams of very pure S (99.98%)
- 500 grams of Mg, small granules (around 1 mm size).

The latter I will use for making H2. Fine powders are too reactive, the small granules have good reactivity and provide a nice flow of H2 when added to 5% or so HCl.




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DavidJR
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[*] posted on 24-3-2019 at 17:19


Well, I've had a few goodies arrive recently, now that I'm able to order from Sigma Aldrich:

  • Acetyl chloride, 500g
  • Dimethyl carbonate, 500ml
  • Dicyclopentadiene, 100g
  • Acetophenone, 100ml
  • Phthalic anhydride, 1kg
  • Bromobenzene, 100ml
  • Bromoethane, 250ml
  • 1-Bromobutane, 500g
  • Sodium amide, 25g
  • Hydroquinone, 100g
  • Catechol, 100g
  • Butyric anhydride, 250ml
  • Propionic anhydride, 250ml
  • Benzaldehyde, 250ml
  • Magnesium turnings, 100g
  • Butadiene sulfone, 100g
  • 2-Chloroacetamide, 250g
  • Sodium anthraquinone-2-sulfonate, 100g
  • Thionyl chloride, 500ml


Best bit is... they accidentally sent me a litre of thionyl chloride instead of the 500ml I paid for.

[Edited on 25-3-2019 by DavidJR]
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[*] posted on 25-3-2019 at 00:38


That order must have cost you a fortune :D
Good to see what kind of chemicals you can order. Especially thionyl chloride is a good one to have.

My P4S10 arrived last weekend. It is a free flowing yellow powder and it really smells awful!! It came in a glass bottle with plastic cap, and this bottle in turn is in a metal can (the type in which paint usually is stored), which I had to open with a big screw driver. When I opened this metal can, a really horrible waft of rotten egg odour escaped from it.

I did some first experiments with P4S10 and it is quite reactive. In hot water it bubbles vigorously, the bubbles being H2S. It is less flammable than I expected. When you keep a flame at the chemical, then it does not ignite immediately. You really have to keep it in a flame for several seconds before it starts burning. Once it burns, it keeps on burning, with a dense white smoke (P4O10) and a pungent odour (SO2).
Compared to P4S3 it is much less flammable. The latter immediately catches fire, even if conly brought in contact with a flame very briefly. P4S3 also behaves differently when brought in contact with alkaline solutions. P4S3 gives phosphine gas, P4S10 does not give any gas at all. It dissolves, giving phosphate and sulfide in alkaline solution.

The Re2O7 also arrived. It is a very nice greenish/yellow compound. It looks very nice.




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[*] posted on 25-3-2019 at 02:38


Quote: Originally posted by woelen  

My P4S10 arrived last weekend. It is a free flowing yellow powder and it really smells awful!! It came in a glass bottle with plastic cap, and this bottle in turn is in a metal can (the type in which paint usually is stored), which I had to open with a big screw driver. When I opened this metal can, a really horrible waft of rotten egg odour escaped from it.


Oooh be careful with that one. I remember reading about a case of an industrial accident where a worker inhaled P4S10 dust and ended up brain damaged.
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[*] posted on 25-3-2019 at 04:26


Quote: Originally posted by DavidJR  

  • Phthalic anhydride, 1kg
    [Edited on 25-3-2019 by DavidJR]


  • I only know of a couple of uses but that seems like a massive amount.
    Now I'm massively curious :)
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    [*] posted on 25-3-2019 at 09:54


    Quote: Originally posted by Herr Haber  
    Quote: Originally posted by DavidJR  

  • Phthalic anhydride, 1kg
    [Edited on 25-3-2019 by DavidJR]


  • I only know of a couple of uses but that seems like a massive amount.
    Now I'm massively curious :)
    For making phenolphthalein?



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    DavidJR
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    [*] posted on 25-3-2019 at 09:55


    Actually I'm mainly interested in making phthalocyanines. The 1kg was really cheap.
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    DavidJR
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    [*] posted on 26-3-2019 at 18:01


    Quote: Originally posted by woelen  
    That order must have cost you a fortune :D


    Well that was four separate orders but I added up the total cost including shipping and VAT and I’ve spent about £380.
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    [*] posted on 26-3-2019 at 18:53


    whats the best places to order besides Sigma, there is a list?

    Thanks
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    DavidJR
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    [*] posted on 26-3-2019 at 19:53


    Quote: Originally posted by ipwn  
    whats the best places to order besides Sigma, there is a list?

    Thanks


    Yep, check the wiki: http://www.sciencemadness.org/smwiki/index.php/Lab_suppliers
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    [*] posted on 26-3-2019 at 20:30


    what about basic equipment?
    for example basic equipment for basic tasks?

    there is anything such as one portable equipment that can be used to perform many tasks? eg. tool box or swiss army knife equipment

    Thanks
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    [*] posted on 26-3-2019 at 21:03


    Quote: Originally posted by ipwn  
    what about basic equipment?
    for example basic equipment for basic tasks?

    there is anything such as one portable equipment that can be used to perform many tasks? eg. tool box or swiss army knife equipment

    Thanks

    Yes. Definitely use basic equipment for basic tasks.
    For example, I am using a basic keyboard to type basic words.

    But I am beginning to think I am responding to a troll.
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    [*] posted on 26-3-2019 at 22:17


    im sorry :)

    can you tell a bit which equipment is located on basic labs?

    do you know if any of these suppliers provide samples?
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    [*] posted on 26-3-2019 at 23:20


    What equipment are you talking about. A teaspoon is equipment. So is a mass spectromter.

    How about *you* figure out what you want to do and then research the methods available and the required equipment.
    Then, if you need some help with, say, configuring your setup or choosing a solvent you will be able to ask specific questions.

    At the moment it is like you are saying, I want food. What equipment is there on a farm?* There is no way anyone can help you.
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    [*] posted on 30-3-2019 at 11:32


    A few items from yet another defunct tech startup.
    The phenylmethylsulfonyl fluoride is a new one for me.
    Lots of amino acids and other biochemistry type stuff.

    Not sure what all is in there. It was one of those, "Take everything because I need to get rid of it."situations.

    I may end up selling much of it off to defray the purchase price.
    This is about 1/2 of it.

    Edit: Geez, make that 1/3rd.
    Oxaloacetic acid?
    Hepes? I sure hope that isn't contagious...




    DSC04113.JPG - 2.5MB DSC04110.JPG - 2.7MB DSC04108.JPG - 2.8MB

    [Edited on 30-3-2019 by SWIM]





    Do you want red P?
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    [*] posted on 30-3-2019 at 16:43


    25g of methylene blue, I just needed a small amount but the 1% solution was 10 times the price of the pure powder, now I can happily make 2.5L of indicator solution :D




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    [*] posted on 2-4-2019 at 15:52


    Well, it finally happened to me!

    MEK Substitute showed up at the local big box.

    Ethyl Acetate, 1 gal




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    [*] posted on 2-4-2019 at 16:16


    Great find! Was the store orange or blue?
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    [*] posted on 2-4-2019 at 17:03


    Quote: Originally posted by CharlieA  
    Great find! Was the store orange or blue?


    Yep, it was the blue one.




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    [*] posted on 3-4-2019 at 16:02


    Thanks. I'll go look for some. I was thinking about synthesizing a small for amount for some TLC experiments that I was thinking about. If I can find at the blue box, I'm sure it will be cheaper, and hopefully not require to much purification.
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    [*] posted on 9-4-2019 at 15:23


    Bought some 'instant cold packs' 140 gm of 'calcium ammonium nitrate' for 3usd. dissolves in water, leaving a brown sludge of chalk and some other impurities. Purification is in order:P



    Put that in your pipe and smoke it!
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    [*] posted on 24-4-2019 at 03:11


    Another sigma order:

    • Phosphorus pentachloride, 500g
    • Sodium methoxide (powder), 100g
    • Trimethyl orthoformate, 250ml
    • Aniline, 1L



    I decided the £33 for PCL5 was good value - cheap, even - after trying to make a small amount from the elements and having two small lab fires in the process. The replacement extinguisher and replacement for the flask that now has an extra hole (which spewed out flaming phosphorus) together cost more than £33.

    [Edited on 24-4-2019 by DavidJR]
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    [*] posted on 5-5-2019 at 07:15
    UK EPP OTC


    Although I've just got rid of my liquids prior to migrating,
    I could not resist buying this
    AcidFront.jpg - 1009kB AcidRear1.jpg - 1.1MB
    £6 OTC, cash, no questions asked.

    The liquid is red rather than the usual brown,
    it chars tissue paper but more slowly than 96% acid,
    a quick density measurement indicates about 92% w/w.
    I'll try to use it up in the next few weeks.




    CAUTION : Hobby Chemist, not Professional or even Amateur
    (suffering from separation of me and my chemistry stuff)
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    woelen
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    [*] posted on 6-5-2019 at 07:10


    Weird that you can buy compounds for which an EPP-license is needed. I think that you had some luck. In another shop it may be that they politely ask for a paper/proof of license and do not sell the bottle. It may even be dependent on a single person, who is not aware of the regulations and does not read all labels on bottles which customers buy.

    In the Netherlands this would be impossible. Any somewhat more risky material is behind a glass wall or behind a desk and you need to ask for it. For some items the people behind the desk certainly will know that a license is needed and they will not sell if you do not explicitly show them the correct papers.
    Risky items also can be obtained online and then in the purchase process the company certainly has a built-in guard for accidental delivery of licensed goods to non-licensed people. Many supply-sites for private persons (e.g. hobby-suppliers) have removed certain items completely from their webshops, such as HNO3, H2O2 in more than 10% concentration. Fortunately, in NL, the list of licensed compounds is short, only the 7 reagents which are regulated EU-wide.




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    DavidJR
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    [*] posted on 6-5-2019 at 16:33


    Slightly scary one on order now- 100ml of dimethyl sulphate. I paid a little extra to get it in a Sure/Seal septum bottle because this will facilitate safer handling.
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