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Research Library
St. Louis
(MM)
OS-16 Flame-Resistant Hydraulic Fluid
Monsanto Technical Bulletin No. 0-D-601 May 19, 1950
Development Dept., Organic Chemicals Division Monsanto Chemical Co., St. Louis 4, Mo.
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OS-16 is one of several Monsanto hydraulic fluids which offer the industrial user a particularly favorable com bination of properties.
OS-16 is essentially non-toxic, is flame-resistant and has excellent lubricating qualities.
OS-16 is chemically an ester base compound which contains no halogenated hydrocarbons, salts or water.
Results obtained under actual operating conditions have demonstrated the excellent performance characteristics of OS-16 and have proven its value as a medium for power transmission.
OS-16 generally requires the use of specially chosen hose, packing and gasket materials. Such are available, however, from several sources.
Consideration of OS-16 is suggested for any of the wide spread applications of hydraulic fluids. It is particu larly recommended where the combination of non-toxicity, flame-resistance and high lubricity are of importance.
*u*S'>t>n * mad* without guarantee, eince th* conditiona of use are beyond our control. Tha Company disclaims any liability incurred in connection with the uae of three data or euggeetiont.
trued as a recommendation to use any prodi
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FIELD RESULTS
Experience with Monsanto's hydraulic fluid OS-16 has proven its excellent operating characteristics under actual service con ditions.
During a three month test and observation period, OS-16 was used in a standard make, hydraulically operated, coal-cutting machine, in underground mine service. Use of the machine was on a 24 hour day, three day week basis and was considered by the operators to be in the most strenuous cutting service. Operating pressure was 1500 pounds per square inch. At the conclusion of this test, the machine was taken out of service and disassembled for a complete examination. It revealed that the hydraulic system, pumps and all other moving parts in contact with OS-16 exhibited no evidence of wear. It was the opinion of experienced observers that OS-16 had proven eminently satisfactory under every operating condition imposed on it and the test results were accepted as a complete demonstration of its suitability.
PHYSICAL AMD CHEMICAL PROPERTIES
Appearance.......... ......................................... Acidity............. ........................................... Moisture............ .................. .........................
Odor.......... .................................................. .... Refractive Index at 25C................... Specific Gravity...................................... Specific Heat...................................... .. Thermal Conductivity............................. Flash Point.......................... .. Fire Point....................................................
Viscosity (centistokes) at 100F. at 210F.
Viscosity Index................... .................... Pour Point....................................................
Clear, blue, oily liquid
0.0l
0.25# Max. Slight, sweet
1.507 to 1.510
I.088 to 1.095 0.42 B.T.U./lb./ F. . 0.047 B.T.U./hr./ft. /ft./F.
435F.
460F.
II.05 2.65
76 -70F.
DATA ON HOSE, PACKING, GASKETS AND PAINTS
As OS-16 is a new type of hydraulic fluid, the hose, gaskets, packing materials etc. that were suitable for earlier types are not usually suitable for use with OS-16. There are available, however, as shown in the following, a number of elastomeric materials which may be considered suitable for use with OS-16:
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Use Material Vendor
All parts
TC-315
Plastics & Rubber Prod. Co. Los Angeles, California
Chevrons "0" rings
PS-85V PR-70
Linear, Incorporated Philadelphia, Pennsylvania
Chevrons "0" rings
1OV70-111 10V85-94
E. F. Houghton & Company Philadelphia, Pennsylvania
Hose
1446a
Electrical Hose Company Wilmington, Delaware
Hose
Goodrich Butyl Goodrich Rubber Company Tube Super Hose
Gasket materials complying with specifications AN-G-171 and AAF-
40231 are suitable for use with OS-16. These are readily avail able through most packing vendors.
OS-16 has a tendency to soften and remove most finishes other than those that are baked. Paints resistant, however, to the action of OS-16 are available from the Arco Paint Company of Los Angeles and the Sherwin-Williams Company of Los Angeles.
TOXICITY
One of the valuable attributes of OS-16 Is Its essential non toxic ity necessitating no Bpecial precautions In handling or use. It Is not a skin Irritant in either the liquid or the vapor phase though vapors of it may cause slight eye Irritation. Where such exposure Is encountered the eyes should be washed with clear water OS-16 should not, of course, be taken Internally.
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For further Information about OS-16 contact:
MONSANTO CHEMICAL COMPANY Development Department
Organic Chemicals Division 1700 South Second Street St. Louis 4, Missouri
HL:WA-.5M-550
Printed In U.S.A.
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