Thread: Mineral Spirits? ?

According to Wikipedia it is "White spirit (UK) or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ)"

Also called naphtha, shellite etc.

Mineral spirit is generic term for lots of things as you have found out
You need to get the MSDS for whatever you have purchased and that should tell you what's in it - well maybe not.

C7 to C12 refers to the number of carbon atoms on the molecule.
C7 molecules will have 7 atoms of Carbon on it.
Simple version: Mineral oil from the ground comes out with a wide range of molecules ranging from
Methane (C1), Ethane(C2) . . . . .. Heptane (C7) Octane (C8), . . . . . . Dodecane (C12) etc
The first few are gasses, then the C5, C8s and up to C17s are liquids and the C20's are solids like tar but melt at around 40-50C

When oil is refined refineries can extract all permutations and combos of molecules and they mix and match these to sell as petroleum products
Suppliers of mineral spirit will mix and match from those according to price, availability and what they think is right.

If you look on Wikipedia you will see that in scientific terms there are 6 CAS (Chemical Abstracts Service) definitions used for mineral or white spirit so that chemists around the world can talk to each other but in the commercial world there's no common naming convention that applies.
One way to think of it is as the "beer" of petroleum products.

Originally Posted by Bohdan

According to Wikipedia it is "White spirit (UK) or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ)"

To me that sounds like another example of fake information on Wikipedia where anyone can edit it.
If British call Turps 'white spirits' then what do they call white spirits?
And Americans don't use the word Terpentine to refer to mineral terpentine? Then what do they call Turps?
I'm not sure but I thought I heard an American talk about terpentine before. What were they talking about if it wasn't turps?
Don't think I'll take that Wikipedia page too seriously.


Sent from my SM-G935F using Tapatalk

In Canada mineral mineral spirits is most commonly sold as paint thinner ( for oil based enamels). The Esso brand is varsol. Other solvents we can buy in the hardware store are naphtha (aka white gas also used for Colman stoves & lanterns), lacquer thinner, xylene, toluene, turpentine and methyl hydrate (alcohol).


Sent from my iPad using Tapatalk

Hi,
Turpentine Comes from pine trees and is not the stuff we call turpentine here.
Some times you see it stressed when it matters in some formulas.
Regards
The terminology is Gum Turpentine and Mineral Turpentine. Does not matter for thinning paint and varnish but can be crucial in some finishing concoctions.

Originally Posted by DaveVman

To me that sounds like another example of fake information on Wikipedia where anyone can edit it.
If British call Turps 'white spirits' then what do they call white spirits?
And Americans don't use the word Terpentine to refer to mineral terpentine? Then what do they call Turps?
I'm not sure but I thought I heard an American talk about terpentine before. What were they talking about if it wasn't turps?
Don't think I'll take that Wikipedia page too seriously.

The names are largely irrelevant because all they are really saying is beer, p1$$, grog, hooch, juice, and booze.
This drives chemists nuts so they deal in CAS or EC (european) chemical numbers
If you want to read a 72 page technical document where the Europeans are trying to "harmonise" the naming of white spirit then here it is
https://echa.europa.eu/documents/101..._spirit_en.pdf

Anyway while I'm not an expert in organic chemistry I do know enough to say the science on the WIkipedia page looks correct.

The reality about the names is they they are just labels used interchangeably for stuff that contain a bunch of different/similar solvents.
Thats's why you have to consult the MSDS (and their CAS numbers) and even some of those are a bit contradictory

Here's an extract from Diggers turps - this is "low aromatic turps" so its main constituent "low aromatic white spirit" has a CAS number (64742-82-1).
This is not even listed on the Wikipedia page on White Spirit but I believe its a variant of T1 white spirit, CAS number 64475-85-0

Chemical Entity	CAS Number	Proportion (%)
Low Aromatic White Spirit	64742-82-1	100
With components:
1,2,4-Trimethylbenzene	95-63-6	< 10
1,3,5-Trimethylbenzene	108-67-8	< 10
Xylene, Mixed Isomers	1330-20-7	< 10
Note – contains < 0.1% benzene

CAS number 64742-82-1 is sold by dozens of companies around the world under the following names
PetroleuM benzine
Naphtha (petroleum),hydrodesulfurized heavy
PETROLEUM ETHER
TIANFU-CHEM PETROLEUM ETHER
Aromatic White Spirit Solvent
TIANFU-CHEM PETROLEUM ETHER
CSR160805-26244

Included in the 100% of the Diggers turps could be up to 10% Xylene, a C8 molecule as are the 3 other possible benzene like components.
The claim is Less than 0.1% pure benzene which is good, as it is a class A1 carcinogen.

I'll bet you are sorry you asked.

Originally Posted by Jrm02

In Canada mineral mineral spirits is most commonly sold as paint thinner ( for oil based enamels). The Esso brand is varsol. Other solvents we can buy in the hardware store are naphtha (aka white gas also used for Colman stoves & lanterns), lacquer thinner, xylene, toluene, turpentine and methyl hydrate (alcohol).


Sent from my iPad using Tapatalk

To me, this is the best evidence yet that their mineral spirits is our white spirits or close to it.
White spirits can be used as a paint thinner. It is a less powerful solvent than mineral terpentine but it is almost odourless and is less irritable to the skin.

I once was using a lot turps and so without thinking I left the turps soaked rag in my side pocket as I worked at a marina. At first it just felt damp. Then slowly I felt this strange sensation annoying me while I was trying to concentrate. Then came the burn! By then my whole hip side of my jeans was soaked in the stuff. Ooch! And I was 20km from a change of clothes! Hhahaha!
Now I wash my hands pretty much straight after using turps.




Sent from my SM-G935F using Tapatalk

Originally Posted by BobL

The names are largely irrelevant because all they are really saying is beer, p1$$, grog, hooch, juice, and booze.
This drives chemists nuts so they deal in CAS or EC (european) chemical numbers
...

The reality about the names is they they are just labels used interchangeably for stuff that contain a bunch of different/similar solvents.
....

I'll bet you are sorry you asked.

Yes and no.
At least I understand why the confusion and roughly what these things are thanks to your post.
Thanks.

So does the UN number establish what it is or is that something else like its volatility?

Sent from my SM-G935F using Tapatalk

Originally Posted by DaveVman

Yes and no.
At least I understand why the confusion and roughly what these things are thanks to your post.
Thanks.

So does the UN number establish what it is or is that something else like its volatility?

I assume you mean CAS or EC number?

These numbers more tightly define the contents, and its the contents will usually determine its physical properties like volatility.

Originally Posted by DaveVman

To me, this is the best evidence yet that their mineral spirits is our white spirits or close to it.
White spirits can be used as a paint thinner. It is a less powerful solvent than mineral terpentine but it is almost odourless and is less irritable to the skin.

I once was using a lot turps and so without thinking I left the turps soaked rag in my side pocket as I worked at a marina. At first it just felt damp. Then slowly I felt this strange sensation annoying me while I was trying to concentrate. Then came the burn! By then my whole hip side of my jeans was soaked in the stuff. Ooch! And I was 20km from a change of clothes! Hhahaha!
Now I wash my hands pretty much straight after using turps.

It's not. Looking at the MSDS of mineral spirits, the constituents is the Stoddard solvent CAS# 64475-85-0. While the white spirits is actually Naphtha CAS 64742-82-1 which is also the constituents of low odour turpentine. The normal turps is a mixture of mostly the same Naptha mixed with with another Naptha CAS 64742-95-6.

White spirit and turps have by and large the same ingredients and low odour turps is white spirit by another name. So if mineral spirits is close to white spirits as you epoused then Wikipedia's "fake information" is actually saying the same thing.

Originally Posted by justonething

It's not. Looking at the MSDS of mineral spirits, the constituents is the Stoddard solvent CAS# 64475-85-0. While the white spirits is actually Naphtha CAS 64742-82-1 which is also the constituents of low odour turpentine.

Referring to one MSDS and assuming it applies across all products with that name can lead to problems that's why you need to look at the MSDS for the product you have in your hand

Stoddard solvent is CAS# 8052-41-3 , and just to add to the confusion CAS# 64475-85-0 is White Spirit Type1
Those and 4 other CAS# are technically White spirit (see https://en.wikipedia.org/wiki/White_spirit)




The Wikipedia pages has the right CAS#

I looked up a few other MSDS and here's what they have listed for Mineral sprits ; 64742-47-8, 8052-41-3 , 68551-17-7While for White spirits I came across 64742-88-7 , 64742-95-6, 64742-89-8, 8052-41-3, 64742-82-1
Note that 8052-41-3 appears in both lists.

The Europeans are trying to standardise the name white spirit to only contain one or more of

8052-41-3, 64742-82-1, and 64742-88-7.

Originally Posted by BobL

Referring to one MSDS and assuming it applies across all products with that name can lead to problems that's why you need to look at the MSDS for the product you have in your hand

Stoddard solvent is CAS# 8052-41-3 , and just to add to the confusion CAS# 64475-85-0 is White Spirit Type1
Those and 4 other CAS# are technically White spirit (see https://en.wikipedia.org/wiki/White_spirit)




The Wikipedia pages has the right CAS#

I looked up a few other MSDS and here's what they have listed for Mineral sprits ; 64742-47-8, 8052-41-3 , 68551-17-7While for White spirits I came across 64742-88-7 , 64742-95-6, 64742-89-8, 8052-41-3, 64742-82-1
Note that 8052-41-3 appears in both lists.

The Europeans are trying to standardise the name white spirit to only contain one or more of

8052-41-3, 64742-82-1, and 64742-88-7.

I don't have a problem with what you say and like you say previously, "names are largely irrelevant". But however I do have an issue to when one says mineral spirit is the same as white spirit but white spirit is not the same as mineral turpentine. Either you should consider their equivalence strictly irrespective of their names. Or they are closed enough to say that information on Wikipedia that "White spirit (UK)^{[note 1]} or mineral spirits (US, Canada),^[1][2][3] also known as mineral turpentine (AU/NZ), turpentine substitute, petroleum spirits, solvent naphtha (petroleum), varsol, Stoddard solvent,^[4][5] or, generically, "paint thinner", is a petroleum-derived clear liquid used as a common organic solvent in painting and decorating." is correct and not fake.

Originally Posted by justonething

I don't have a problem with what you say and like you say previously, "names are largely irrelevant". But however I do have an issue to when one says mineral spirit is the same as white spirit but white spirit is not the same as mineral turpentine. Either you should consider their equivalence strictly irrespective of their names. Or they are closed enough to say that information on Wikipedia that "White spirit (UK)^{[note 1]} or mineral spirits (US, Canada),^[1][2][3] also known as mineral turpentine (AU/NZ), turpentine substitute, petroleum spirits, solvent naphtha (petroleum), varsol, Stoddard solvent,^[4][5] or, generically, "paint thinner", is a petroleum-derived clear liquid used as a common organic solvent in painting and decorating." is correct and not fake.

Well I know folks that are in your camp because they buy their white spirit from a supplier and it contains X (their MSDS says that) they say it's definitely not the same as turps which it's MSDS confirms because it says it contains somethings else. They appreciate the differences because for a particular application they need it just so and that's fine,

However, just down the road if they bothered to look they might find someone flogging a different turps containing the same X as their local white spirit. Then if you extend that to all around the world it's all over the place - there are no standard contents for any of those products. Which is why the Wikipedia statement is mostly correct. In your corner of Melbourne there may may indeed be a difference.

It's a bit like petrol - its not a single brew.
Wikipedia. says, It is a mixture of paraffins (alkanes), cycloalkanes(naphthenes), and olefins (alkenes) and ethers and other additives,
It's called gasoline, petrol, juice, gas etc - is it all the same - no it isn't but all these names are still used for it.