Stearic acid

Structure of Stearic acid (CAS NO.57-11-4):

Molecular Formula: C₁₈H₃₆O₂
Molecular Weight: 284.477240 g/mol
IUPAC Name: Octadecanoic acid
Density: 0.84 
Refractive index: 1.4299
Storage temp.: 2-8 °C
EINECS: 266-928-5
Flash Point: >230 °F
Appearance: white flakes
Melting Point: 67-72 °C(lit.)
Boiling Point: 361 °C(lit.)
Water Solubility: 0.1-1 g/100 mL at 23 °C
Vapor pressure: 1 mm Hg ( 173.7 °C)
Categories of Stearic acid (CAS NO.57-11-4): Miscellaneous Natural Products;Alkylcarboxylic Acids;Biochemistry;Higher Fatty Acids & Higher Alcohols;Monofunctional Alkanes;Saturated Higher Fatty Acids

 Stearic acid (CAS NO.57-11-4) is useful as an ingredient in making candles, plastics, dietary supplements, oil pastels and cosmetics, and for softening rubber. It is used to harden soaps, particularly those made with vegetable oil, and is also used as a parting compound when making plaster castings from a plaster piece mold or waste mold and when making the mold from a shellacked clay original. It is used along with simple sugar or corn syrup as a hardener in candies, and is used with zinc as zinc stereate as fanning powder for cards to deliver smooth fanning motion.

 Stearic acid (CAS NO.57-11-4) is prepared by treating animal fat with water at a high pressure and temperature, leading to the hydrolysis of triglycerides. It can also be obtained from the hydrogenation of some unsaturated vegetable oils.

Hazard Codes: Xi ,F
Risk Statements: 38-36/37/38-11
38: Irritating to the skin
36/37/38: Irritating to eyes, respiratory system and skin
11: Highly Flammable
Safety Statements: 37/39-26-16
37/39: Wear suitable gloves and eye/face protection
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
16: Keep away from sources of ignition-No smoking

 Stearic acid , its cas register number is 57-11-4. It also can be called Octadecanoic acid . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Wash mouth out with water, and get medical aid immediately. Stearic acid (CAS NO.57-11-4) needs to be kept away from heat, sparks, and flame, and should be stored in a cool, dry place or stored in a tightly closed container.