trimethyl α-hexadecyl betaine - Names and Identifiers
trimethyl α-hexadecyl betaine - Physico-chemical Properties
Molecular Formula | C19H39NO2
|
Molar Mass | 313.51 |
PH | 7.0~9.0 |
Storage Condition | 应密封贮存在室内;避免与强氧化剂和阴离子表面活性剂接触;应小心轻放、防晒。室温保质6个月。 |
Physical and Chemical Properties | Colorless or light yellow liquid, soluble in water, is a zwitterionic surfactant. Can be compatible with various types of dyes, surfactants, and cosmetic raw materials, stable to sodium hypochlorite, and not suitable for prolonged heating above 100 ℃. BS-12 (dodecyldimethylbetaine) exhibits excellent stability and compatibility under both acidic and alkaline conditions. Low skin irritation, good biodegradability, excellent softness, anti-static, hard water resistance, rust resistance, and stain removal and sterilization ability. |
Use | Used as a disinfectant for soaking leather, it is easy to remove dirt and has good softening properties. |
Caution | Solvents that do not contain phenols or are harmful to the environment are classified as low toxicity. Operators should wear rubber gloves during operation and should not come into contact with their |
trimethyl α-hexadecyl betaine - Preparation method
Open Data Verified Data
Add 100kg of bromohexanoic acid to the reaction vessel, then add a 40% aqueous solution of sodium hydroxide. After heating and dissolving, add 300kg of 25% trimethylamine dropwise, and stir at 30 ℃ for 5 hours. Let it stand overnight, dilute with 500kq of water, heat and evaporate the remaining trimethylamine to obtain the crude product.
Last Update:2024-01-02 23:10:35
trimethyl α-hexadecyl betaine - Introduction
A- cetyltrimethylbetaine is a cationic surfactant with the chemical formula C16H33N(CH3)3HC2H4OH, commonly abbreviated as CTAB.
It is a white crystal or crystalline powder, which is soluble in water but insoluble in organic solvents. It has good surface activity and micelle forming ability. In aqueous solution, CTAB can form positively charged micelles, which can be used for emulsification, dispersion, thickening, antistatic and other functions. In addition, it also has strong antibacterial, bactericidal and bacteriostatic ability.
A- cetyltrimethylbetaine is widely used in practical applications. It is often used as a surfactant for synthetic drugs, cosmetics, dyes, lubricants, etc. In biochemical research, CTAB is commonly used for the extraction and separation of DNA and protein, and is also used for cell dissolution, calcium oxalate precipitation, anaerobic bacteria culture and other experimental processes.
A- cetyltrimethylbetaine is generally prepared by reacting Betaine with certain compounds. There are many specific preparation methods, such as etherification, alkylation, reduction, etc. One of the more common methods is the reaction of Betaine and bromooctane chloride to produce A- cetyltrimethylbetaine.
Regarding safety information, CTAB is relatively safe under normal conditions of use. However, it should be noted that it is a toxic chemical that may cause irritation and damage when in contact with eyes, skin and breath. Prolonged exposure should be avoided and suitable protective equipment such as glasses, gloves and masks should be worn. At the same time, it should be stored in a dark, dry and well-ventilated place, away from flammable materials and oxidants.
Last Update:2024-04-09 21:11:58