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12-Hydroxy Stearic Acid (12-H.S.A.) Flakes/ Powder

12-Hydroxy Stearic Acid is the mixed fatty acid obtained by hydrolysis of Hydrogenated Castor Oil. It is high melting, brittle, waxy solid at ambient temperatures. It should be stored away from heat to avoid deterioration.


It is insoluble in water and it's solubility in many organic solvents is also limited. It is a non-toxic, non-hazardous material. It is used in the manufacturing of greases.

12-H.S.A. Flakes
Sr. No. Specification / Charateristics Test Method Parameters
1 Apperance Off White Flakes
2 Colour Gardner AOCS Td 1a-64 3 to 5 Gardner
Colour Apha 750 Max
Colour Lovibond 5 ¼ ‘ Cell 20 Yellow Max, 4 Red Max
3 Acid Value % (mgKoH/gm) Aocs cdc.3d.63 175 – 185
4 Iodine Value gI2 /100g
Aocs cd 1.25 3 to 4
5 Hydroxyl Value (mgKoH/gm) Aocs cd 13.60 157 Min
6 Saponification Value Aocs cd 3.25 180 Min
7 Melting Point º C Acos cd 1.25 72 to 78º Celsius
8 Unsaponifiable Matter Aocs TK 1a.64 1.0 Max
9 Nickel PPM AAS or ICP 3 - 5 PPM
10 12 Keto Stearic Acid G.C. 4 Max
11 12 HAS % G.C., Aocs cd 1.62 83 – 87
12 Particle Size - -
13 Flash Point ºF
14 Metal Catalyst


12-H.S.A. Powder
Sr. No. Specification / Charateristics Test Method Parameters
1 Apperance Off White to Creamish White Powder
2 Colour Gardner AOCS Td 1a-64 1 to 2 Gardner
Colour Apha
Colour Lovibond 5 ¼ ‘ Cell
3 Acid Value % (mgKoH/gm) Aocs cdc.3d.63 175 – 185
4 Iodine Value gI2 /100g
Aocs cd 1.25 3 to 4
5 Hydroxyl Value (mgKoH/gm) Aocs cd 13.60 157 Min
6 Saponification Value Aocs cd 3.25 180 Min
7 Melting Point º C Acos cd 1.25 84 to 88º Celsius
8 Unsaponifiable Matter Aocs TK 1a.64 1.0 Max
9 Nickel PPM AAS or ICP 3 - 5 PPM
10 12 Keto Stearic Acid G.C. 4 Max
11 12 HAS % G.C., Aocs cd 1.62 83 – 87
12 Particle Size - 72% Passing through 16 Mesh 95% Passing through 35 Mesh