Base Oil Data By CAS #


Group 1 Oils

CAS 64742-88-7 group 1
A complex combination of hydrocarbons obtained from the distillation of crude oil or natural gasoline. It consists predominantly of saturated hydrocarbons having carbon numbers predominantly in the range of C9 through C12 and boiling in the range of approximately 140°C to 220°C (284°F to 428°F).
Synonyms: mineral spirits, solvent, turpentine substitute
flash point: 57°C
density: 78 g/mL at 20 °C

64742-48-9 group 1
A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly in the range of C6 through C13 and boiling in the range of approximately 65°C to 230°C (149°F to 446°F).
Synonyms: Hydrotreated heavy petroleum
Viscosity kinematic: 1.23 mm2/s (40°C)
flash point: 62°C
density: .775

64742-47-8 group 1
A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly in the range of C9 through C16 and boiling in the range of approximately 150.degree.C to 290°C (302°F to 554°F).
Synonyms: Hydrotreated light distillates (petroleum), kerosene
flash point: 71°C
density: .80

CAS 64742-46-7 group 1
A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly in the range of C11 through C25 and boiling in the range of approximately 205°C to 400°C (401°F to 752°F).
Synonyms: Hydrotreated Middle Distillate (Petroleum base oil), white mineral oil, paraffine oil
flash point: 121°C
density: .89

CAS 68476-30-2 group 1
A distillate oil having a minimum viscosity of 32.6 SUS at 37.7°C (100°F) to a maximum of 37.9 SUS at 37.7°C (2-3.6 cSt @38C), density 0.865 g/cm3, Flash Point: 52-93°C, Autoignition Temperature: 257°C, Boiling Point: 171-357°C

CAS 64741-89-5 group 1
Distillates (petroleum), solvent-refined light paraffinic


Distillates (petroleum), hydrotreated heavy paraffinic have a flashpoint above 200°C and an initial boiling point of above 280°C.

64741-88-4 group 2
A complex combination of hydrocarbons obtained as the raffinate from a solvent extraction process. It consists predominantly of saturated hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finish oil with a viscosity of at least 100 SUS at 100 °F (19cSt at 40 °C).
Synonyms: Solvent-refined (mild) heavy paraffinic distillate, mineral oil
flash point: 185°C
density: .88 g/cm3 at 25 °C

64742-54-7 group 2
A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C59 and produces a finished oil of at least 100 SUS at 100.degree.F (19cSt at 40°C). It contains a relatively large proportion of saturated hydrocarbons.
Synonyms: Hydrotreated (mild) heavy paraffinic distillate
flash point: 200°C
density: .86

CAS 64742-65-0 group 2
A complex combination of hydrocarbons obtained by removal of normal paraffins from a petroleum fraction by solvent crystallization. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity not less than 100 SUS at 100°F (19cSt at 40°C).
Flash Point: 185 °C
Density: 0.88 g/mL at 25 °C(lit.)
Molecular Formula: Petroleum hydrocarbon (petroleum has a mixture of different oil molecules which is why they don’t specify one here)
Hydrocarbons: C20 - C50
Synonyms: Mineral oil, petroleum distillates, solvent-dewaxed heavy paraffinic

CAS 64742-52-5 group 2
A complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil of at least 100 SUS at 100°F (19cSt at 40°C).
Synonyms: Hydrotreated (mild) heavy naphthenic distillate
flash point: 185°C

CAS 848301-69-6 group 2
Heavy paraffinic base oil obtained using Fischer-Tropsch Synthesisof natural gas.
Carbon #'s C18-C50
flashpoint 183 C

CAS 64742-62-7 group 2
A complex combination of hydrocarbons obtained by removal of long, branched chain hydrocarbons from a residual oil by solvent crystallization. It consists of hydrocarbons having carbon numbers predominantly greater than C25 and boiling above approximately 400*C (752*F).

CAS 64742-70-7 group 2
A complex combination of hydrocarbons obtained from a catalytic dewaxing process. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100 degree F (19cSt at 40 degree C).


CAS 64742-01-4 group 4 PAO Polyalphaolefins
A complex combination of hydrocarbons obtained as the solvent insoluble fraction from solvent refining of a residuum using a polar organic solvent such as phenol or furfural. It consists of hydrocarbons having carbon numbers predominantly higher than C25 and boiling above approximately 400°C (752°F).
Synonyms: Residual oils (petroleum), severely solvent-refined
flash point: 113°C


Synthetic Oils

CAS 11138-60-6 group 5
Synonyms: Caprylic acid, TRICAPRYLATE/TRICAPRATE, Trihydroxymethylpropyl ester
Molecular Formula: C60H116O12
Hydrocarbons: C60
Flash Point: 238ºC
Density: 0.953g/cm3

CAS 68334-05-4 group 5
Systematic Name: Fatty acids, C18-unsatd., dimers, 2-ethylhexyl esters
Molecular formula: C44H80O4


Castor Oil

CAS 8001-79-4
.96 density
.72 viscosity @ 25C
flash point 229C


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