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Author: Subject: Laboratoriumdiscounter.nl ratings
DraconicAcid
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[*] posted on 3-9-2025 at 08:22


Quote: Originally posted by teodor  
My experience with them over the last several months is quite positive. I've got a lot of high quality not easy-to-get chemicals. It has packing made by manufacturers, not usual rectangular bottles used by many stores without any trace of who made what is inside. My life is much easier when Laboratoriumdiscounter is in the list of suppliers.

I can recommend this store!

I take it you got the fluosilicate you mentioned in your previous post?




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Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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teodor
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[*] posted on 3-9-2025 at 10:08


I've got the fluorosilicate on 20th of March. I didn't update this thread that time. Today I've got something ordered on 11th of Aug, including malononitrile, cerium (III) acetate and few other organics. All 2 orders went smooth. The packaging is of the first class. But more chemicals I've bought during that time on S3. Also smooth, a bit faster but not so big selection and bottles are typical of german style - you known, it's hard to distinguish between 2 bottles, the label is not practical in the term of understanding what is it and also so boring look ...

If I will go to my storage today I will just attach the picture here what I mean.



S3vsLD.jpg - 278kB

(It's only color of Ce (IV) sulfate which makes S3 chemicals to look slightly different here)

[Edited on 3-9-2025 by teodor]
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Keras
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[*] posted on 4-9-2025 at 00:56


I have had some issues with them recently. They couldn't find a proper transporter to send me the bottles of carbon disulphide I had ordered (six months ago?) and they still did not refund me (neither the bottle, nor the astronomical price they charge you for dangerous goods transportation). I have other backlog items, btw, that seem to have been lost over time though I pay for them. I should check.
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Fery
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[*] posted on 4-9-2025 at 19:46


I got my CS2 in february after ordering 1 month prior. They sent my parcel although I asked them not to do that in period of 10 days when I was abroad. I had to complicately contact the courier to postpond its delivery. The delivery was scheduled at the first day I was out. All emails sent to this NL supplier address from my country domain were rejected and bounced back as undeliverable. At the end I succeeded with email sent from .com domain which did not cause any error backmassage so it seemed to be delivered to them. Although that they sent the parcel. CS2 was in aluminium bottles. I ordered 2,5 L package and they divided it into 2x 1 L + 1x 0,5 L very likely for safety reason. I experienced something similar with HCl from other country supplier where delivery of 5 L plastic barrel was much more expensive than 5 glass bottles of 1 L volume.
This was my second order from them, somewhat less terrible experience than the first one. Definitely my last order from them. So much wasted time attempting to contact them and zero result.
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Keras
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[*] posted on 5-9-2025 at 00:41


I agree they’re becoming sloppy. I have basic items like a 0…360°C thermometer in backorder from last November. I can’t really figure out why it takes so long to get a somewhat unusual, but still ordinary thermometer. As for the bottles of CS2, apparently their usual transporter for France refused to take them (for whatever reason they were unable to find out) and since then, nothing. Not that I was expecting them for a particular project, but yet.

They have a large choice of chemicals, that what renders them attractive. What are your other sources?

[Edited on 5-9-2025 by Keras]
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Fery
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[*] posted on 7-9-2025 at 09:08


They used Stad Alkmaar Logistic and then Raben (very likely in this order, because Raben operates in my country) - I can see their stickers on the cardbox.
Their CS2 is quite high purity 99,98%.
If they cancel or do not deliver you CS2 then I can give you one CS2 bottle as a gift for free if you are living inside EU (any country where PPL or DPD delivers from my country). You posted here a lot of experiments with plenty of photos so you'll be able to do some organic chemistry with CS2 too. If you need only a little of CS2 then I should have somewhere one very old (like >50 years) bottle with something like 100-200 ml (again for free). If you would like to recrystallize S then I have also enough of Xylene (from chemland.pl, they also use Raben as a courier for bulky parcels into my country) and 1,2 dibromoethane (I've bought only 1 L bottle but got second one as a gift for free).
DOI:10.2166/9781789060966_0011
Solubility of α-S 8 in organic solvents at 25°C unless otherwise indicated (in wt%).
Solubility-of-a-S-8-in-organic-solvents-at-25C-unless-otherwise-indicated-in-wt.png - 102kB
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Keras
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[*] posted on 8-9-2025 at 00:22


Quote: Originally posted by Fery  
They used Stad Alkmaar Logistic and then Raben (very likely in this order, because Raben operates in my country) - I can see their stickers on the cardbox.

Not over here, it’s more like DHL or DPD, IIRC.
Quote: Originally posted by Fery  

Their CS2 is quite high purity 99,98%.
If they cancel or do not deliver you CS2 then I can give you one CS2 bottle as a gift for free if you are living inside EU (any country where PPL or DPD delivers from my country).

Thanks! ♡ That’s really super kind of you. Yes I’m living in France, so no worries about customs and such.
Quote: Originally posted by Fery  

You posted here a lot of experiments with plenty of photos so you'll be able to do some organic chemistry with CS2 too.

One of the first things I wanted to do is simply to use the disulphide to make carbon tetrachloride (and SCl₂ which can later be used to make acetic anhydride. Although they are cheaper ways to make sulphur chlorides just by reacting the elements, I assume that SCl₂ is formed together with carbon tetrachloride).

Quote: Originally posted by Fery  

If you need only a little of CS2 then I should have somewhere one very old (like >50 years) bottle with something like 100-200 ml (again for free). If you would like to recrystallize S then I have also enough of Xylene (from chemland.pl, they also use Raben as a courier for bulky parcels into my country) and 1,2 dibromoethane (I've bought only 1 L bottle but got second one as a gift for free).
DOI:10.2166/9781789060966_0011


I’m not sure exactly how much I need. I had ordered two bottles of one litre each, but that’s way beyond what I was planning to use in the near future (to make CCl₄). I ordered too much, because I feared some stupid future directive prohibiting its selling.

I have xylene, thanks for that. As for dibromoethane, I’m not sure what I could do with it rn.

But thanks a bunch for your offer!

Also, apparently carbon disulphide can be formed by decomposing thiourea under inert atmosphere. The temperature must be closely monitored, but it seems, at least theoretically, to be a viable process?
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[*] posted on 8-9-2025 at 12:28


I have also thiourea something like 10 kg.
Some old CCl4 in like 4-5 bottles less than quarte-half full so about 1 L together.
Also some (CH3CO)2O
Not worth of producing them.
I intended to use CS2 for some organosulfur chemistry like xanthates. Maybe thiourea could be more useful for more reactions, then P4S10 (I have few packages, some are in a form of lumps, others are in a form of dust), also Lawesson's reagent. I have some organosulfur commercial reagents (with thiol groups, heterocycles, chelating agents).
I synthesized yet only trithiane (trimer of thioformadehyde) and a thiazole derivate and would like to do more organosulfur chemistry.
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Keras
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[*] posted on 9-9-2025 at 00:07


Quote: Originally posted by Fery  
I have also thiourea something like 10 kg.
Some old CCl4 in like 4-5 bottles less than quarte-half full so about 1 L together.
Also some (CH3CO)2O
Not worth of producing them.
P4S10 (I have few packages, some are in a form of lumps, others are in a form of dust), also Lawesson's reagent. I have some organosulfur commercial reagents (with thiol groups, heterocycles, chelating agents).


Lol, your lab seems to be a real treasure trove!
In any case, diekwe! Sorry, my Czech is all but non-existent.
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teodor
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[*] posted on 17-9-2025 at 12:29


So far so good. Ordered on 10 Sep, delivered on 17 Sep.

benzonitril.jpg - 605kB
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Keras
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[*] posted on 17-9-2025 at 23:58


Well, I have send them another mail about the carbon disulphide, zero answer after one week.
They have other items on backlog, same silence…

[EDIT] I have left a mixed review on Trust Pilot following this experience (I have two things in backlog for about a year now) and they reacted… I sent them back the list of items still unreceived. Let's see if they can do something.

[Edited on 18-9-2025 by Keras]
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