Hydrogenated castor oil (HCO) is a white colored, odorless wax and hard, brittle wax solid with melting point about 850C.It is tasteless and odorless that is insoluble in water and solubility in many organic solvents is also very limited. When hydrogen is added to Castor Oil in the presence of a nickel catalyst, the resultant oil, called Hydrogenated Castor Oil, is transformed into a hard, brittle wax with a melt point of approximately 85-860 C. This wax is extremely insoluble and is therefore well suited for products needing resistance to water, oils, petroleum and petroleum derivatives. Ricinoleic Acid a monosaturated 18-carbon fatty acid, the essential constituent in castor oil on hydrogenation becomes fully saturated and forms a wax like product with high melting of 850C.
It is non-toxic, non-hazardous material . Hydrogenated castor oil is respectively stable against heat, and can improve resistance against solvent and grease, hardness and melting point by blending with the other waxes. It is the triglyceride mainly of 12-Hydroxy Stearic Acid and is insoluble in water. This is available as Fully-Hydrogenated Flakes and Powders, Partially Hydrogenated, and in Liquid Form as well. The product can be available with several different melting points, or in beaded or powdered form. Partially Hydrogenated castor oil is used in cosmetic formulations such as lipsticks and stick deodorants. Hydrogenated Castor Oil is a saturated fatty acid insoluble in water and most organic solvents at room temperature. Due to its high melting point it is used in resin and polymer mixtures.
It is compatible with ethyl cellulose, cellulose acetate butyrate, natural and synthetic rubber, polyethylene, polyvinyl butyrate, polymethacrylate, rosins, shellacs, botanical wax, and montan wax, and so forth.
|1.||Apperance||Visual||White to creamish Flakes||White waxy powder|
|2.||Colour Gardner||AOCS Td 1a-64(97)||1 to 2 Gardner||1 to 2 Gardner|
|Colour Apha||750 Max|
|Colour Lovibond 51/4" Cell||Aocs Cc 13e-92||20 Yellow Max, 2 Red Max|
|3.||Acid Value % (mgKoH/g)||Aocs Cd 5a-40(97)||3 Max||2 Max|
|4.||Iodine Value gI2 /100g||Aocs cd 1-25 (97)||3 to 4||2.5 Max|
|5.||Hydroxyl Value (mgKoH/g)||Aocs cd 13.60(97)||155 Min||155 Min|
|6.||Saponification Value(mg KOH/g)||Aocs cd 3-25(97)||174 -186||174 -186|
|7.||Melting Point 0 C||Acos cd 1.25||84 to 880 Celsius||84 to 880 Celsius|
|8.||Unsaponifiable Matter(%)||Aocs Ca.6a-40||1.0 Max||1.0 Max|
|9.||Nickel (ppm)||AOCS |
Ca 15 - 75
|3 - 5 PPM||3 - 5 PPM|
|10.||12 Keto Stearic Acid||G.C.||4 Max||4 Max|
|11.||12 HSA %||G.C., Aocs cd 1.62||83 - 87||83 - 87|
|13.||Flash Point 0F||4250 F Min||4250 F Min|
|14.||Metal Catalyst||20 PPM Max||20 PPM Max|
|15||Particle Size||98% passing through 16 Mesh|
|16||Moisture & Volatiles||AOCS|
Ca 2c - 25
|0.5 % Max|
|17||% 12-Hydroxy Stearic Acid||IUPAC - 2:301||86% Min|
|18||% 12-Keto Stearic Acid||IUPAC - 2:301||1.5% Max|
|19||Heavy Metals||AOCS |
|1 ppm Max|
In the manufacture of multipurpose Lithium/Calcium grease and high performance aviation grease. Lithium and calcium hydroxy stearates dispersed in base oil to make multipurpose greases having higher. Dropping points, better rust proofing, lubricity and durability than stearates.
In other Lubricants: as metal drawing lubes,PVC lubricans for PVC pipes, profiles, sheets, pharma tableting, Metal powders, ceramics