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Stearic Acid
Stearic acid is a fatty acid found in many plant and animal oils. Due to it's molecular structure it is widely used in cosmetics as an emulsifier and can also be found in soaps, body washes and shaving creams. It's soap-like quality enables it to penetrate the skin, providing emollient, skin-softening properties. It has become a primary choice for many bath and body manufacturers as it is used to emulsify, thicken, or otherwise bind and stabilize lotions and creams.
It is particularly useful on cleansers as it allows for dirt and oils to be lifted from the skins surface by water. It also helps to harden soap bars. This same property makes it useful for candles, adding firmness, a longer burn-time, and a white (opaque) smooth look. It also reduces fragrance migration in mottled candles and is used as a mold release for pillars and votives.
It is particularly useful on cleansers as it allows for dirt and oils to be lifted from the skins surface by water. It also helps to harden soap bars. This same property makes it useful for candles, adding firmness, a longer burn-time, and a white (opaque) smooth look. It also reduces fragrance migration in mottled candles and is used as a mold release for pillars and votives.
Rating:
CAS No: 54-11-4
Name: Stearic Acid
Other Name(s): Octadecanoic acid
Hazards Identification
- Toxic if swallowed.
- Very toxic to aquatic life
Precautions:
- Wash hands thoroughly after handling
- Avoid release to the environment.
In emergency dial 111, and then ask for Fire, Ambulance or Police as necessary.
In case of poisoning phone National Poisons Centre – 0800 764 766
First Aid Measures
| Inhalation | Remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention. |
| Skin Contact | Immediately wash skin with soap and plenty of water for at least 20 minutes. Remove contaminated clothing. Get medical attention if symptoms occur. Wash clothing before reuse. |
| Eye Contact | Hold eyelids apart and flush eyes with plenty of water for at least 20 minutes. Have eyes examined and tested by medical personnel. |
| Ingestion | Wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel. |
Fire Fighting Measures
| Auto-Ignition Temperature | 395°C (743°F) |
| Flash Points | CLOSED CUP: 196.11°C (385°F) |
| Suitable Extinguishing Media | Use alcohol-resistant foam, carbon dioxide, water, or dry chemical spray. |
| Unsuitable Extinguishing Media | A solid water stream may be inefficient. |
| Fire Fighting Instructions | As in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes. |
Accidental Release Measures
| Protective Precautions, Protective Equipment and Emergency Procedures | Avoid raising and breathing dust, and provide adequate ventilation. As conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator, and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves). |
| Environmental Precautions | Take steps to avoid release into the environment, if safe to do so. |
| Methods and Material For Containment and Cleaning Up | Contain spill and collect, as appropriate. Transfer to a chemical waste container for disposal in accordance with local regulations. |
Handling and Storage
| Precautions To Be Taken in Handling | Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. |
| Precautions To Be Taken in Storing | Keep container tightly closed. Store in accordance with information listed on the product insert. |
Physical and Chemical Properties
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