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

Re: MSDS' and CAS' #257882 07/14/04 10:31 PM
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T-Keith Offline
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How would one distiguish a Group I oil from a Group II or III?

-T

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

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

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

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

Re: MSDS' and CAS' #257887 10/21/04 04:55 AM
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MolaKule Offline OP
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New CAS Numbers for Group III


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

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

Re: MSDS' and CAS' #257889 12/30/04 05:21 AM
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Motorbike Offline
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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 ]

Re: MSDS' and CAS' #257890 07/25/06 05:48 AM
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joee12 Offline
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I wanted to bump this topic up, it contains some great information. Thanks Molakule, Joe

Re: MSDS' and CAS' #257891 07/26/06 07:23 AM
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buster Offline
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Thanks for bumping this back up joee. I'm one of those freaks that looks for things like this. lol. [Cheers!]

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

Last edited by benjy; 04/23/15 08:33 PM.
Re: MSDS' and CAS' [Re: benjy] #3709210 04/23/15 10:55 PM
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OVERKILL Offline
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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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Re: MSDS' and CAS' [Re: MolaKule] #3709543 04/24/15 11:00 AM
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MolaKule Offline OP
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Actually, PAO is a synthesized paraffinic hydrocarbon.


"As engineers [and scientists] we are wired to solve problems and to create new things, to challenge the status quo and push the limits..." Ken Hurt, Embry-Riddle University, Class of '97.
Re: MSDS' and CAS' [Re: MolaKule] #3709544 04/24/15 11:01 AM
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MolaKule Offline OP
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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.

Last edited by MolaKule; 04/24/15 11:04 AM.

"As engineers [and scientists] we are wired to solve problems and to create new things, to challenge the status quo and push the limits..." Ken Hurt, Embry-Riddle University, Class of '97.
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