Stearamidopropyl dimethylamine, with the CAS number 7651 - 2 - 7, is a high - quality chemical compound. It is an amidoamine derivative, which appears as a pale yellow to yellowish - brown solid or paste at room temperature. The molecular formula of stearamidopropyl dimethylamine is (C_{23}H_{48}N_{2}O), and the molecular weight is approximately 368.64 g/mol.
This product is known for its high purity and excellent quality. It has good solubility in common organic solvents such as ethanol, isopropanol, and chloroform, but is sparingly soluble in water. The melting point of stearamidopropyl dimethylamine is usually in the range of 38 - 42°C. It has a characteristic amine - like odor.
2.1 Personal Care Products
Stearamidopropyl dimethylamine is widely used in the personal care industry. In hair care products such as shampoos and conditioners, it acts as an anti - static agent and conditioner. It can reduce the static electricity of hair, making the hair smoother, more manageable, and less frizzy. In skin care products, it can improve the texture of creams and lotions, enhance the spreadability, and provide a soft and smooth feel to the skin.
2.2 Textile Industry
In the textile industry, it is used as a softening agent and anti - static additive. It can be applied to natural and synthetic fibers, improving the softness and antistatic properties of textiles. This makes the fabrics more comfortable to wear and easier to handle during processing.
2.3 Lubricant Industry
It can be used as an additive in lubricants. It helps to reduce friction between moving parts, thereby improving the efficiency and service life of machinery. It can also enhance the anti - rust and anti - corrosion properties of lubricants.
3.1 In Personal Care Products
When formulating shampoos and conditioners, stearamidopropyl dimethylamine is usually added at a concentration of 1 - 5%. It should be first dissolved in the appropriate solvent (such as ethanol) at a certain temperature (usually around 50 - 60°C) and then added to the main formulation under stirring. After adding, continue to stir the mixture until it is homogeneous.
3.2 In Textile Industry
For textile softening treatment, it can be prepared into an aqueous solution with a concentration of 0.5 - 2%. The textiles are then immersed in the solution for a certain period (usually 15 - 30 minutes), followed by rinsing and drying.
3.3 In Lubricant Industry
When used as a lubricant additive, it is typically added at a concentration of 0.1 - 1%. It should be thoroughly mixed with the base lubricant to ensure uniform dispersion.
4.1 Hair Care Product Case
A hair care company wanted to improve the quality of its high - end conditioner. They added stearamidopropyl dimethylamine at a concentration of 3% to their existing formula. After conducting consumer trials, they found that 80% of the participants reported that their hair felt softer, smoother, and more manageable. The product also received positive reviews for reducing hair frizz and static electricity. This led to an increase in sales of the conditioner by 20% within three months.
4.2 Textile Softening Case
A textile manufacturer was dealing with complaints about the harsh feel of their synthetic fabrics. They decided to use stearamidopropyl dimethylamine as a softening agent. By treating the fabrics with a 1% aqueous solution of the compound, they were able to significantly improve the softness of the fabrics. The treated fabrics were more popular in the market, and the manufacturer saw an increase in orders from 10,000 pieces per month to 15,000 pieces per month.
4.3 Lubricant Improvement Case
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