Document nkRJRLXjEa46JODLj34p968j1

SAFETY ;W COMMITTEE APPROVED BY ssFINAL APPROVAL DATE. MONSANTO CHEMICAL COMPANY Organic Chemicals Division St. Louis Research Department lM0-A- l-i-l-t'J fj0,8 5-ll'U St. Louis Research Report No. P-1310 TENTATIVE PROCESS FOR PYDRAUL 280 Job No. 2-02-760.01-4009 March 27, 1964 Reported by: J. D. Sullivan Work done by: L. R. Stark ' t J. D. Sullivan HONS C6C432 DISTRIBUTION FOR REPORT NO. P-1310 1. Pile 2. C. W. Roos 3. W. R. Richard 4. Duplicate Pile 5. Technical Reports Library (Eventually) 6. L. R. Stark . 7. J. P. Queeny Plant - Standards Dept. - P. N. Blven 8. " "" It 10. W. a. Krummrlch Plant - Standards Department 11. " " 12. " " 13. R.L. Mlller/R.E. Bllger/D.B. Hosmer 14. J. D. Sullivan 15. Extra .17. II 18 HONS 060433 This report contains confidential information which Is the property of the Monsanto Chemical Company which shall be disclosed only to duly authorized persons. The recipient is held accountable for the,filing and safe custody of this report which must be returned on demand. 1. INTRODUCTION Pydraul 280 was developed as a fire resistant hydraulic fluid, having a viscosity Intermediate to Pydraul A-200 and Pydraul 625, to meet the requirement of a mining application for British Petroleum In Qermany. This formulation Is actually a mixture of Pydraul A-200 (56.2# by weight) and Pydraul 625 (43.8# by weight) and after the initial sales requirements have been produced, the blending process will be amended by eliminating Aroclor 1242 from the Pydraul 280 formulation. A minimum of six (6) months will be required to schedule this additional laboratory work Into the Functional Fluids program. SYNOPSIS OF PROCESS . Pydraul 280 Is prepared by thoroughly mixing small amounts .of Santolube 70 and Santolube 393 Into a specified mixture of Aroclors, containing tricresyl phosphate. A dye, duPont Oil Blue A, Is added to give the characteristic Pydraul color and Dow Corning 200 fluid is added to defoam the formulation. The reiultlng fluid is filtered into container*. BILL OF MATERIALS The process weights for 100 pounds of Pydraul 280 are as follows: Aroclor 1260 Aroclor 1248 Aroclor 1242 .Tricresyl Phosphate Santolube JO Santolube 393 duPont Oil Blue A Dow Coming 200 Fluid 21.9 pounds 37-1 pounds 18.5 pounds 21.85 pounds 0.40 pounds 0.25 pounds 0.0007 pounds 0.002 pounds PROCESS IN DETAIL To a clean, dry vessel, equipped with an agitator, charge 21.9 lbs. of Aroclor 1260, 37.1 lbs. of Aroclor 1248, 18.5 lbs. of Aroclor 1242 and 21.85 lbs. of tricresyl phosphate. Stir and add 0.40 lbs. of Santolube 70 and 0.25 lbs. of Santolube 393. Santolube 70 Is a viscous liquid and may be warmed to facilitate handling but in no Instance should the temperature of this addi tive exceed 100C. Add 0.0007 lbs. of duPont Oil Blue A and 0.002 lbs. of Dow Corning 200 Fluid (350 cs at 25C) and stir the blend for 30 minutes to Insure complete mixing. The final fluid Is filtered through a sock or a string wound filter into drums. Filter equipment utilizing Dicalite or other filter aids cannot be used In this operation because these media remove the silicone defoamer and certain earths will also adsorb the blue dye. A one pound sample of the finished fluid should be submitted for analysis. ' M0NS 060434 2 MATERIAL SPECIFICATIONS Raw materials used In this formulation are commercially available products and all of the components are produced by Monsanto, except the duPont dye and the Dow Corning fluid. The trlcreByl phosphate must meet the specifications for Agrade material. The Aroclors, Santolube 70 and Santolube 393 must pass Monsanto's finished goods specifications. The duPont Oil Blue A should meet normal purchasing requirements and the Dow Corning 200 silicone, 350 cs at 25C grade, la aooepted on manufacturer's analysis. No formal specifications have been established for Pydraul 280. Typioal properties are as follows: Acidity Moisture Pour Point Flash Point Vlsooslty at 100 *F at 210"F Specific Gravity at 25/25C - 0.65 - 0.02 - 15F - 405F - 59.80 cs - 4.02 cs - 1.39^9 TOXICITY AND HAZARDS The raw materials and finished formulation should be handled with normal care. Repeated or continuous skin contact should be avoided and Inhalation of vapors at elevated temperatures should be prevented. The formulation Is only mildly irritating to the eyes (but ca-1 cause pain) and like any synthetic fluid, It exerts a solvent action on the skin. Eye Irritation studies showed It to be a mild irritant with no permanent damage to the tissue. STREAM POLLUTION No W&ste streams are discharged from this process. Jd , . 3/30/64 Flie Copy Approved By Manager of Research W. R. Richard Date of Final Approval J. D. Sullivan : I ` MOWS 060435