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CAS numbers of solvents

C

CuriousBoy

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There are many guides of making DMT, but none are specifying the exact identifiers of the substances recommended.

I would like to know whether what is generally listed in the guides as Heptane for example, is exactly what I am ordering on a website which is presenting a product called n-heptan. Similarly for Naphtha, I am seeing products labelled as Cosmetic Naphtha. Apparently there are at least 5 types of Naphtha.

Can anyone please add the CAS numbers of these non-polar solvents to shed light on this? If there are multiple substances that are allowed, just list all of them there. I am finding some matches on the internet, but I would really trust someone more experienced to validate these instead. Here is the list I've found, please correct and complete it.

- Naphtha - unsure, there are many
- Heptane - 142-82-5
- Hexane - 110-54-3
- Xylene - 1330-20-7
- Toluene - 108-88-3
- d-Limonene - 5989-27-5
- Limonene (distilled d-Limonene) - not sure, same as above?
- Methylene chloride (DCM) - 75-09-2
- Octane (petrol) - 111-65-9
- Nonane (kerosene) - 111-84-2
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CuriousBoy said:
Heptane for example, is exactly what I am ordering on a website which is presenting a product called n-heptan
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Almost certainly. You definitely want n-heptane, and "heptan" is the spelling in German and some other languages.
Maybe you should be asking where to find the reliable sources of chemical information, like PubChem. Synonyms often get listed, too. Maybe it's trickier in a language other than English.

Things to watch out for in German:

"benzene/toluene/xylene" (English) >>> "benzol/toluol/xylol" (German)

Wikipedia can be helpful if and when the page is available in more than one language (ideally including ones native language plus English).
 
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Varallo said:
You should compile this list yourself by checking the CAS numbers in public databases or on the supplier’s SDS. It’s basic lookup work, not something to ask others to do for you. If you have a specific point of confusion once you’ve done that, then ask.
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I have updated the list with what I've found. The reason I did not do this ahead of time was because the person who corrects would have to go through the list anyways, and me pasting whatever was coming up on Google seemed dangerous to me. I hope I am not ordering some toxic stuff, so, if you don't mind, take a look at the list to double-check and fill in the gaps. Thanks. I would like all versions of Naphtha that are valid for this, in particular.
 
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In essence, all mixtures of hydrocarbons sold as Naphtha are usable. The main issue that can arise is the presence of things like rust inhibitors. These are not always listed on the label, though in most countries they should be, luckily this can be tested quite easily by evaporating a small amount on a clean glass surface.

You also need to be careful with substances like benzene, as it is a known carcinogen and its vapors should definitely not be present indoors. Other than that, all Naphthas will work, but some will evaporate cleanly and others not, depending on the bottle you get.

You can look up all the CAS numbers for the different types of Naphtha, but the general advice is to use a lighter one, not a heavy Naphtha. Heavy Naphtha evaporates very slowly and has a higher chance of leaving residue behind.

8032-32-4 is a light one and suitable.
 
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This is why I was reluctant to compile the list myself. How do I know it is correct now? I am not able to convince someone to check and validate them for me so that I don't order something toxic and pointless. The website I have found that delivers to my place has a Naphtha that has a CAS number of 8032-32-4. How do I know this is any good for DMT? How do I know that the CAS numbers of the other ones are the same ones of the solvents that you guys are talking about in other places? I also want to order Heptane with CAS 142-82-5. Is this good? How would I know? Can I have one of you edit my list and put some tickmarks or something against each item or enlist several versions for Naphtha? I would have had no idea that the one you suggested is suitable without you presenting it to me.
 
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Heptane is totally fine. Its actually leas toxic then hexane. The downside is it has a higher boiling point to slower to wvaporate. n-Heptane just means its linear alkane as opposide to an alkane with 7 carbons that is branched. Even if it was labeled as "heptanes" which is a mixture of n-heptane and branched versions its still fine. They all have similar polarity and solvent properties.
 
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Transform said:
There are a few other identification numbers to refer to besides CAS no., such as EINECS, EC no., and UFI.
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Yes, I know, but CAS is the most used one. Still, I did not get anybody to confirm the list item by item or provide more variants for those who don't have access to standard substances. For now, I've ordered Heptane (142-82-5) and Cosmetic Naphtha (64742-48-9). I don't think we need the other variants because anybody can search by CAS and find the equivalents in other systems. But we most certainly need the CAS numbers especially for Naphtha, because there are too many variants and products commercializing it.
 
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CuriousBoy said:
Yes, I know, but CAS is the most used one. Still, I did not get anybody to confirm the list item by item or provide more variants for those who don't have access to standard substances. For now, I've ordered Heptane (142-82-5) and Cosmetic Naphtha (64742-48-9). I don't think we need the other variants because anybody can search by CAS and find the equivalents in other systems. But we most certainly need the CAS numbers especially for Naphtha, because there are too many variants and products commercializing it.
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As you can see in the article attached CAS numbers are certainly not the way to go.
 

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There are many grades of solvents. Food grade, reagent grade, analytical grade etc. These can have different identifiers depending on chemical compositions or regulatory reasons. But cosmetic grade naotha just probably means its naptha thats approved for use in like nail salons or sale in pharmacies. If you really want to know whats in it youd want to read a certificate of analysis or what requirements are needed to meet a particular grade.
 
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I have quick and easy access to a variety of solvents which I can procure but I do not know which exactly I could use for my extraction. I am located in Italy and I am currently using Wundbenzin from Germany and it is pretty expensive so I would very much prefer, if possible, to substitute it with something else. I have access to Heptane (Not sure if N-Heptane, must check), Octane, Ethyl Acetate, Acetone, Cyclohexane and others. Do you guys think Heptane or maybe Octane could be a good substitute for Wundbenzin? I will try to provide the sheets for each one in the next coming days if you want to. As you can tell I am not very savvy but I am very eager to learn. Thank you very much in advance!

Sic parvis magna
 
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Birthdayboy said:
I have quick and easy access to a variety of solvents which I can procure but I do not know which exactly I could use for my extraction. I am located in Italy and I am currently using Wundbenzin from Germany and it is pretty expensive so I would very much prefer, if possible, to substitute it with something else. I have access to Heptane (Not sure if N-Heptane, must check), Octane, Ethyl Acetate, Acetone, Cyclohexane and others. Do you guys think Heptane or maybe Octane could be a good substitute for Wundbenzin? I will try to provide the sheets for each one in the next coming days if you want to. As you can tell I am not very savvy but I am very eager to learn. Thank you very much in advance!

Sic parvis magna
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Heptane is a good option, I believe it's better than octane. AFAIK it doesn't need to be n-heptane.
 
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Birthdayboy said:
I have quick and easy access to a variety of solvents which I can procure but I do not know which exactly I could use for my extraction. I am located in Italy and I am currently using Wundbenzin from Germany and it is pretty expensive so I would very much prefer, if possible, to substitute it with something else. I have access to Heptane (Not sure if N-Heptane, must check), Octane, Ethyl Acetate, Acetone, Cyclohexane and others. Do you guys think Heptane or maybe Octane could be a good substitute for Wundbenzin? I will try to provide the sheets for each one in the next coming days if you want to. As you can tell I am not very savvy but I am very eager to learn. Thank you very much in advance!

Sic parvis magna
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In Italy there's "Ligroina" that's Petroleum Ether, used in various application like woodworking, has numbers like 100 140, 80 120 that are boiling range, i don't know CAS numbers.
 
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