Overview
Trihydroxystearin, commonly referred to as tristearin, is a triglyceride ester derived from stearic acid and glycerol. It is a naturally occurring compound found in animal and vegetable fats. Due to its versatile properties, it is extensively used in industries such as cosmetics, pharmaceuticals, and food processing as an emulsifier, thickener, or stabilizer. Its biodegradable and non-toxic nature makes it an environmentally friendly choice for formulations requiring sustainable ingredients. The compound is typically available as a white to off-white powder or flakes, depending on the processing method.
Physical and Chemical Properties
Trihydroxystearin is characterized by its high melting point of 72-75°C, making it stable at room temperature. It is insoluble in water but dissolves readily in organic solvents such as ethanol and chloroform. The compound has a density of approximately 0.86 g/cm³ and a molecular weight of 891.48 g/mol. Its key chemical properties include excellent emulsifying and thickening capabilities, which are leveraged in various industrial applications. The compound is also known for its stability under normal storage conditions, though it should be kept away from moisture and direct sunlight to prevent degradation.
Main Applications
In the cosmetics industry, trihydroxystearin is used as an emulsifier and thickening agent in creams, lotions, and makeup products. Its ability to stabilize formulations makes it a popular choice for personal care products. The pharmaceutical industry utilizes it as an excipient in tablet coatings and ointments due to its non-toxic nature. In the food sector, it serves as a stabilizer and thickener in processed foods, ensuring consistent texture and quality.
Safety and Storage
Trihydroxystearin is generally recognized as safe (GRAS) for use in food and cosmetic products. However, precautions should be taken to avoid inhalation of dust during handling. Proper storage involves keeping the compound in a cool, dry place, sealed in airtight containers to prevent moisture absorption. While it is non-toxic, prolonged exposure to high concentrations should be avoided. Suppliers typically provide material safety data sheets (MSDS) for detailed handling and safety guidelines.
B2B Procurement Guide
When procuring trihydroxystearin, B2B buyers should prioritize suppliers with certifications such as ISO or GMP compliance. Key factors to consider include purity levels, typically ranging from 95% to 99%, and the form (powder or flakes) required for specific applications. Price varies based on quantity and supplier, with bulk purchases often attracting discounts. It is advisable to request samples for quality testing before large-scale procurement. Additionally, verify the supplier’s ability to meet regulatory requirements for your industry.
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