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#257881 - 07/15/04 09:48 AM MSDS' and CAS'
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
For you MSDS watchers, here are some base oils and additives with CAS numbers with descriptions:

Mineral Paraffininc Base Oil - 64742-54-7; VI of +94 to 120, any group.

Mineral Naphthenic Base Oil - 64741-96-4; VI of -15, any group.

Mineral Aromatic Base Oil - 64742-03-7; VI of -185, any group.

Hydrotreated paraffininc, heavy - 64742-52-5
Hydrotreated paraffinic, light - 64742-53-6

PAO's: 68649-12-7, 68037-01-4, 163149-29-9, 151006-63-2, 151006-62-1, 151006-60-9. VII's of +155 or greater.

Diester - 28472-97-1; VII's average +170.

VII Copolymers - 127883-08-3


Additives:
ZDDP Type Adds: 68649-42-3, XXXXX-46-6.

Calcium Sulfonates: 61789-86-4

Moly Dithiophosphate - 68958-92-7 or 68958-92-9

Moly Disulfide Powders - 1317-33-5

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#257882 - 07/14/04 10:31 PM Re: MSDS' and CAS'
T-Keith Offline


Registered: 01/20/04
Posts: 4869
Loc: MN
How would one distiguish a Group I oil from a Group II or III?

-T

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#257883 - 07/14/04 10:36 PM Re: MSDS' and CAS'
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
You can't unless you know the extent of the processing of the oil.

As stated elsewhere, an MSDS does not tell you much about the formulation. An MSDS is primarily for Medical and Environmental purposes.

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#257884 - 07/15/04 12:11 AM Re: MSDS' and CAS'
T-Keith Offline


Registered: 01/20/04
Posts: 4869
Loc: MN
I understand the point of the MSDS. [Big Grin] But it's also a good tool to get an idea of an oil's content, although not to a great extent. Correct?

The MSDS for Chevron ATF says 80-100% 64742-54-7 Distillates, hydrotreated heavy paraffinic.

Would the term "hydrotreated" be enough to assume this oil was a Group II? Or is this not specific enough.

-T

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#257885 - 07/15/04 08:37 PM Re: MSDS' and CAS'
G-MAN Offline


Registered: 11/15/02
Posts: 8936
Loc: SC
Far be it from me to disagree with Molakule, but in my early days of "oil mania" when I did extensive research on CAS#s, I determined that 64742-54-7 was in fact the number for hydrocracked/hydrotreated base oils, be they Group II, II+, or III. Solvent extracted/dewaxed oils had a different CAS#. I got this directly off one of the database services listed on the Chemical Abstract Service (CAS) website.

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#257886 - 07/15/04 10:36 PM Re: MSDS' and CAS'
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
64742-54-7 is a generic CAS number for paraffininc base oils; I don't disagree with you Gman and you may be correct.

The CAS numbers I listed are not all inclusive, but are basic CAS numbers.

Here is what happens: EM, Chevron or Shell or whomever will come out with an oil (hydrotreated, isomerized, etc) and have it CAS registered with a different (new) number.

I.E., New oils produced under a specific process may have new CAS numbers.

If any BITOG members have documented information of new CAS numbers and their Process/Group Types, please feel free to post. BITOG is an informational exchange and educational site.

For example, I recently received a mineral base oil for evaluation that carries 8 CAS numbers for a mix of various Group Oils with many new CAS numbers. Unfortunately, the CAS number is not equated to the specific process type.

[ July 16, 2004, 01:52 PM: Message edited by: MolaKule ]

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#257887 - 10/21/04 04:55 AM Re: MSDS' and CAS'
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
New CAS Numbers for Group III


hydrocracked hydroisomerized Group III
178603-64-0,
178603-65-1,
178603-66-2

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#257888 - 10/22/04 08:29 AM Re: MSDS' and CAS'
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
BTW,

The designation of Paraffinic, Naphthenic, or Aromatic simply describes the structure of the mineral oil molecule. It has nothing to do with waxes, solvents, or being smelly.

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#257889 - 12/30/04 04:21 AM Re: MSDS' and CAS'
Motorbike Offline


Registered: 11/25/03
Posts: 2602
Loc: The Tropics of Antartica
Arrggg

Approximately 75 CAS numbers for mineral base oils , Parraffinic Hydrocarbons "PAO " and various lube Esters would not line up .

I'll try again later

[ December 30, 2004, 08:36 PM: Message edited by: Motorbike ]

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#257890 - 07/25/06 05:48 AM Re: MSDS' and CAS'
joee12 Offline


Registered: 07/04/02
Posts: 4106
I wanted to bump this topic up, it contains some great information. Thanks Molakule, Joe

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#257891 - 07/26/06 07:23 AM Re: MSDS' and CAS'
buster Offline


Registered: 11/16/02
Posts: 30282
Loc: NJ
Thanks for bumping this back up joee. I'm one of those freaks that looks for things like this. lol. [Cheers!]

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#3709085 - 04/23/15 08:27 PM Re: MSDS' and CAS' [Re: MolaKule]
benjy Offline


Registered: 08/23/10
Posts: 447
Loc: pa
looking to learn more to determine the oil group used. is PAO group IV described as a parraffinic hydrocarbons. looking at an Amsoil MSDS for 5-30 signature series showing CAS 64742-54-7 + 64742-65-0 base oils 30% 60%. is that the percentages of each base oil listed? thanks in advance, this is very interesting!!!


Edited by benjy (04/23/15 08:33 PM)

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#3709210 - 04/23/15 10:55 PM Re: MSDS' and CAS' [Re: benjy]
OVERKILL Online   content


Registered: 04/28/08
Posts: 33463
Loc: Ontario, Canada
Originally Posted By: benjy
looking to learn more to determine the oil group used. is PAO group IV described as a parraffinic hydrocarbons. looking at an Amsoil MSDS for 5-30 signature series showing CAS 64742-54-7 + 64742-65-0 base oils 30% 60%. is that the percentages of each base oil listed? thanks in advance, this is very interesting!!!


No, PAO is not Paraffinic hydrocarbons.

PAO, at least on the Mobil MSDS shows up as:

1-DECENE, HOMOPOLYMER HYDROGENATED and has a CAS # of 68037-01-4
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#3709543 - 04/24/15 11:00 AM Re: MSDS' and CAS' [Re: MolaKule]
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
Actually, PAO is a synthesized paraffinic hydrocarbon.
_________________________
Assume the reader knows a certain amount but don't assume too much. smile

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#3709544 - 04/24/15 11:01 AM Re: MSDS' and CAS' [Re: MolaKule]
MolaKule Offline


Registered: 06/05/02
Posts: 18002
Loc: Iowegia - USA
The designation of Paraffinic, Naphthenic, or Aromatic simply describes the molecular structure of oil molecules.

It has nothing to do with waxes, solvents, or being smelly.


Edited by MolaKule (04/24/15 11:04 AM)
_________________________
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