Blog

15-Crown-5 is a widely used crown ether compound in the preparation of chelating agents. Crown ethers are a class of compounds with cyclic structures that can act as chelating agents by forming complexes with metal ions. 15-Crown-5 is a larger crown ether molecule formed by cyclization of 15 ethylene glycol units. It has high coordination ability, can form stable complexes with many metal ions, and has good selectivity. The following are the main applications of 15-Crown-5 in chelating agents:   Metal ion extraction: 15-Crown-5 can be used to extract metal ions from solution. It can selectively form stable complexes with some metal ions, thereby achieving metal enrichment and separation. Ion sensor: Due to its ability to form complexes with metal ions, 15-Crown-5 can be used to construct ion sensors. Through the formation and dissociation of complexes, ion sensors can detect and monitor the concentration of specific metal ions. Drug delivery system: 15-Crown-5 can form complexes with some drugs and enhance their stability and bioavailability. Therefore, it can be used as part of a drug delivery system to improve the solubility, stability, and absorption performance of drugs. Separation and purification technology: 15-Crown-5 can be used for the separation and purification of metal ions. Through selective complexation and elution steps, target metal ions can be extracted from complex mixtures, achieving purification and enrichment.   Ahsuperchem provides 98% high purity 15-Crown-5 with the appearance of colorless to light yellow transparent liquid, any interests, please feel free to contact us.

Tetrabutyl ammonium fluoride is an important organic fluoride compound with a wide range of applications, especially in organic synthesis and catalytic reactions. Its high chemical selectivity and permeability make it a useful tool in many fields of chemistry and biology. Ahsuperchem provides different specifications of this material to meet different requirements of the customers, please check them simply as follows: ♥ Tetrabutyl ammonium fluoride trihydrate 98%min Cas no.: 87749-50-6  ♥ Tetrabutyl ammonium fluoride 85%min Cas no.: 87749-50-6 ♥ Tetrabutyl ammonium fluoride 72% in water Cas no.: 429-41-4 ♥ Tetrabutyl ammonium fluoride 1M in THF Cas no.: 429-41-4   We export this product regularly. If you are interested, please feel free to contact us for the details at any time.        

Trioctyl methyl ammonium bromide is a quaternary ammonium salt compound with strong surface active properties and good metal extraction performance, which has been widely used in the field of metal extraction. The main reasons why it can be used as a metal extractant are as follows:   Surface active properties: Trioctyl methyl ammonium bromide is a cationic surfactant with excellent surface activity and micelle formation ability. In the process of metal extraction, Trioctyl methyl ammonium bromide can reduce interfacial tension, promote the interaction between metal ions and organic phases (usually organic solvents), and thus achieve effective extraction and separation of metals. Appropriate lipophilicity: The octyl alkyl group endows Trioctyl methyl ammonium bromide with appropriate lipophilicity, making it have good solubility and stability in organic solvents. Trioctyl methyl ammonium bromide can form stable micelle structures in organic phases, promoting the extraction and separation of metals through the action of micelles. High selectivity: Trioctyl methyl ammonium bromide has different affinities and selectivity towards different metal ions. By adjusting factors such as conditions and coordination agents, efficient extraction of target metal ions and removal of other impurity ions can be achieved, achieving selective separation of metals.   In summary, Trioctylmethylammonium bromide has good application potential as a metal extractant in metal separation and extraction processes. It can improve the recovery rate and purity of metals, providing an effective means of metal resource utilization for industries such as chemical and metallurgical industries. Any further information about this material, please feel free to visit us at www.ahsuperchem.com    

Didodecyl dimethyl ammonium chloride is a quaternary ammonium salt surfactant commonly used in disinfection, sterilization, and antibacterial applications. The main reasons why it is also widely used as an antistatic agent are as follows:   Ionic properties: Quaternary ammonium ions in Didodecyl dimethyl ammonium chloride have a positive charge and can interact with negatively charged substances in static electricity. In the air, static electricity is usually caused by small particles with negative charges, such as dust, hair, etc. The positively charged ions in Didodecyl dimethyl ammonium chloride can adsorb on the surface of these negatively charged particles, neutralize their charges, and thus disrupt the accumulation process of static electricity. Surfactant properties: Dilauryl dimethyl aminium chloride is a highly effective surfactant with good dispersion, wetting, and emulsifying properties. This allows it to quickly diffuse to the surface generated by static electricity and form a thin lubricating film, helping to conduct electricity and preventing the accumulation of charges. Antibacterial effect: Didodecyl dimethyl ammonium chloride, as an antibacterial agent, can inhibit the growth of microorganisms. In an environment where static electricity occurs, microorganisms such as bacteria and fungi can attach to the surface, forming microbial communities. The activity of these microorganisms fixed on the surface may also lead to the accumulation of static electricity. By using Didodecyl dimethyl ammonium chloride to inhibit microbial growth, the adhesion and activity of microorganisms can be reduced, thereby reducing the generation of static electricity.   Overall, Didodecyldimethylammonium chloride can be used as an antistatic agent mainly due to its ionic properties, surface activity characteristics, and inhibitory effect on microbial growth, helping to neutralize charges, reduce charge accumulation, and prevent the generation of static electricity. If you have any interests in this material, please visit us at www.ahsuperchem.com for the details.    

β zeolite is an embedded porous material with strong acidity and thermal stability, which is widely used in fields such as catalysis, adsorption, and separation. In the molecular structure of Tetraethylammonium bromide, ammonium ions are connected to four ethoxyl groups, while bromide ions attach to ammonium ions. Due to the presence of four ethoxy groups in TEABr molecules, a large number of hydrogen bonds and van der Waals forces can be formed, resulting in β zeolite acts as a template during the formation process.   • The role of TEABr in the synthesis of β zeolite 1. As a stimulant to promote crystal formation TEABr, due to its large amount of ethoxyl groups in its molecules, therefore, a stable film can be formed on the surface of β zeolite seeds, which promotes the formation of crystals. 2. Increase β zeolite pore channels TEABr molecules and β formation of hydrogen bonds and van der Waals forces between the silicon aluminum framework on the surface of zeolite seeds can increase the number and size of pores during crystal formation. 3. Promoting the crystal growth of β zeolite A mixture of TEABr and solvents such as methyl isobutyl ketone (MIBK) can be deposited at high temperatures β on the surface of zeolite seeds, it promotes crystal growth.   • The practical application of TEABr synthesis of β zeolite The application of TEABr in the vapor phase synthesis of β zeolite has been widely applied in practice. For example, using TEABr as a template can synthesize H-BEA and H-BETA catalysts with high selectivity and reactivity. In addition, TEABr can also combine with alkaline metal ions to hybridize and form coordinated covalent organic framework materials (COFs). This type of COFs can be applied in fields such as catalysis, adsorption, and environmental governance due to its high acidity and thermal stability.   Any further information about Tetraethyl ammonium bromide, please feel free to visit us at www.ahsuperchem.com        

Since Pedersen first synthesized a series of crown ether compounds in 1967, chemists from various countries have done a lot of work on the synthesis, properties, and applications of crown ethers. These types of ligands are widely used in the basic research of coordination chemistry for alkali metals, alkaline earth metals, and lanthanide element metals.There are currently hundreds of synthesized crown ethers, and the following are the most common crown ethers: 1. Coordination properties of crown ethers Crown ethers have a hydrophobic outer skeleton and a hydrophilic inner cavity that can bond with metal ions. Crown ether compounds have a definite human ring structure and can form relatively stable complexes with many metal ions.   2. The structure of crown ether complexes In recent years, extensive research has been conducted on the structure of crown ether complexes, which can be divided into five categories based on the positional relationship between ligands and cations in the complexes: The first type is the pores where cations are exactly suitable for ligands, such as the complexes of 18-crown-6 and KSCN [K (18-crown-6) (SCN)]K＋with weak interaction forces with SCN¯. The second type is the pore where the cation is slightly larger than the ligand and slightly above the pore. The complexes Rb＋ and Cs¯ ions of 18-crown-6 with CsSCN and RbSCN leave the plane 1.2Åand 1.44Å, respectively. At the same time, the ammonia atoms of two SCN¯ also weakly bind with metal ions, bridging the two complexes together. When the cation ratio of the ligand is small, the ligand can simultaneously encapsulate two metal ions, forming a third type of structure. For example, the complex of dibenzo-24-crown-8 with K＋ions: out of the 8 atoms in the ligand, every 4 atoms coordinate with 1K＋. The fourth type of complex is a part of the coordinating atoms of the ligand that does not coordinate with metal ions. What is the complex Pd2＋of PdCl2 with 1,10-disulfide-18-crown-6 Coordinate with 2 sulfur atoms and 2C1¯atoms of the ligand, while the oxygen atom in the ligand does not participate in coordination. The fifth type is sandwich structure, such as the structure of [K＋-(benzo-15-crown-5)2]in the complex of benzo-15-crown-5 and K＋.   If you have any interests in Crown ether products, please visit us at www.ahsuperchem.com for the details.

Dioctyl dimethyl ammonium bromide is a cationic surfactant commonly used as an auxiliary in textile dyeing processes. It can promote the dyeing effect of sex dyes on silk, improve the uniformity and firmness of dyeing.   Dioctyl dimethyl ammonium bromide has good dispersibility and permeability, and can interact with reactive dye molecules during the dyeing process. This interaction can be achieved through ion exchange, electrostatic interactions, hydrogen bonding, and other means. Specifically, the cationic portion of Dioctyldimethylammonium bromide can combine with the anionic portion of reactive dyes to form a stable ion complex. In this way, reactive dyes can be better dispersed in the solution and more easily penetrate into the interior of silk fibers. In addition to dispersion and permeation, according to Ahsuperchem's research, Dioctyldimethylammonium bromide can also improve the adsorption performance of dyes and fibers. Due to the fact that Dioctyl dimethyl ammonium bromide is a cationic surfactant, it can form electrostatic attraction with negatively charged silk fiber surfaces, enhance the interaction force between dyes and fibers, and enhance the affinity between dyes and silk.   Therefore, the application of Dioctyl dimethyl ammonium bromide in silk dyeing can improve the dispersibility, permeability, and adsorption properties of reactive dyes, promote uniform dyeing of reactive dyes on silk, and enhance the firmness of the dyeing effect.

Cetyl trimethyl ammonium chloride is a kind of Quaternary ammonium salts, which has excellent properties such as penetration, softening, emulsification, anti-static, biodegradability, and sterilization. This product also has good chemical stability, heat resistance, light resistance, pressure resistance, and strong acid and alkali resistance.   Hair is a biological complex composed of cortex. In addition to protein structure, oil and water are also the basic substances that keep hair flexible. If the oil on the hair is removed, it will cause the hair to be fragile and vulnerable, and losing water will lead to dry hair fracture. The cationic surfactant Hexadecyl trimethyl ammonium chloride can neutralize the positive charge of its own cation with the negative charge on the hair surface, reducing the repulsive force between the keratin scales. The unique neutralization function provided by cationic surfactants reduces the static electricity of hair, increases its softness, fluidity, and improves its combability. Due to the "fat" properties of cationic surfactants, the wrapping layer it forms on the surface of hair can keep hair smooth and prevent the loss of moisture. The combination of Hexadecyl trimethylammonium chloride and 16-18 alcohols can improve the smoothness and softness of hair.   We supply Cetyl trimethyl ammonium chloride with the purities of 30%, 50%, 70% and 99% regularly. If you have any interests, please visit us at www.ahsuperchem.com for the details.    

This product is a disinfectant mainly composed of composite quaternary ammonium salts (Didecyl dimethyl ammonium chloride and N-alkyl dimethyl benzyl ammonium chloride), with a total content of 1.90% -2.10%, including 60% Didecyl dimethyl ammonium chloride and 40% N-alkyl dimethyl benzyl ammonium chloride. It can kill intestinal pathogenic bacteria, pyogenic cocci, and pathogenic yeast.   Functional features: • The pH value is neutral and has no corrosiveness to materials such as wood and ceramics. • No alcohol, fresh odor, non irritating, and does not harm the skin.   Applicable scope: ♥ The surface of objects in public places such as reception desks, handrails, elevators, and bathrooms in hospital systems. ♥ The surface of objects in public places such as reception desks, floors, and bathrooms in banking systems. ♥ Pet systems such as cages, pet carpets, pet food bowls, pet toys, and other surface objects. ♥ Other surfaces of public places such as restaurants, hotels, airports, buses, shopping malls, sports venues, and entertainment venues.   Notes: • This product is an external disinfectant and should not be taken orally. • This product should avoid compatibility with soap and other anionic surfactants to avoid affecting the disinfection effect. • Ready to use and cannot be reused. • This product has slight corrosiveness to metals such as aluminum and carbon steel.   We supply disinfectant raw materials, if you have any interests, please feel free to visit us at www.ahsuperchem.com

Ahsuperchem manufactures many products of  Teritary amime, of which C12-C14 alkyl dimethyl amine is the most commonly used material by customers. Here below is the detailed introduction to this product:   Identification: Product name: C12-C14 alkyl dimethyl amine Cas no.: 84649-84-3 Molecular formula: C12-14H25-29(CH3)2N   Specifications: Appearance (25℃) Colorless clearance liquid Color (APHA) 30#max Moisture 0.3%max Total amine value 240-260 mgKOH/g Primary & Secondary amine  0.5%max Tertiary amine value 98%min Free alcohol 0.8%max Main components C12: 65.0～75.0 C14: 22.0～32.0 C12+C14: ≥ 95 C16: ≤ 2.0   Standard applications: 1. As the main raw material for the production of cationic quaternary ammonium salt, react with Benzyl chloride to produce Benzalkonium chloride(BKC), widely used in disinfectants, bactericides, pigment and dye industries; 2. React with chloromethane to produce Alkyl trimethyl ammonium chloride, used as bactericide, softener, emulsifier and surfactant in pigment, dye, mineral flotation, water treatment, oil field, textile, daily chemical, bentonite and other industries; 3. Used as asphalt emulsifier, widely used in oil field industry, etc…   Standard Packaging: 800 kg IBC drum, 160 kg iron drum, or ISO tank. Alternative package sizes may be available upon request.   Shelf  life: 2 Years, stored in the dark, cool, dry and ventilated place.      

The specification of Cetyl trimethyl ammonium bromide CTAB  (Cetrimonium bromide ), generally, according to the laws of US and European, should include following items: Appearance: White or light yellow powder Chain Length: Min. 95% w/w C16（C16＞95%） Free amine: Max. 0.3% w/w（＜0.3%） Amine salts: Max. 0.3% w/w（＜0.3%） Assay: Min. 99% w/w（＞99%） Solubility: Soluble in water, lower alcohols,such as methanol, ethanol and propanol Density: 0.4 g/mL to 0.6 g/mL Melting point: Decomposes at 245 – 250 ℃   HNMR ( Nuclear Magnetic Resonance spectroscopy) is a powerful and theoretically complex analytical tool, used not only in the determination of the structure of unknown organic compounds but also in the quantitative analysis. From a technical view, the most-concerned impurities in quaternary ammonium compounds are free amine and amine salts which can not be accurately detected or quantified by titration method, GC or LC, Ahsuperchem uses HNMR to analyze CTAB. HNMR spectra were recorded on 400 MHz spectrometerin CDCl3. Fig.1 is one of  HNMR figures of CTAB, which was produced on January 10, 2024.   Fig.1 HNMR spectrum of CTAB    Fig.2 is the HNMR spectrum of Cetyl dimethyl amine salt. From fig.2 we can see that the single at 2.75 ppm is the triple peaks at 2.92 ppm are the characteristic peaks of the Cetyl dimethyl amine salt. If there is any amine salt in CTAB, there should be a single peak at 2.78 ppm and a triple peak at 2.92 ppm like in Fig.2. Similarly, if any free amine exists,(the characteristic peak of Cetyl dimethyl amine are with chemical shifts from 2.20 to 2.80 ppm), there should be peaks at 2.20 to 3.00 ppm in Fig.1. We can see that there is no peak from 2.00 to 3.00 ppm from Fig.1 indicating that there is no amine or amine salt in the product or the amount of amine and amine salt is lower than the detection limit of HNMR. (<0.1%) By the same logic, there will be some other peaks if anyother organic impurities existing in production CTAB. Only five characteristic peaks of CTAB can seen, from Fig.1 we can conclude that no organic solvents remaining.   Fig.2 HNMR spectrum of Cetyl dimethyl amine salt    

This product is a disinfectant mainly composed of single and double alkyl methyl compound quaternary ammonium salts, with a content of 0.14% -0.17%. Can kill pyogenic cocci, intestinal pathogenic bacteria, and pathogenic yeast.   Functional characteristics With mild formula and plant essence, it can moisturize the skin. Green and environmentally friendly formula, non corrosive, preventing secondary pollution. This product is safe, non irritating, and odorless.   Applicable scope Suitable for various fresh fruits, vegetables, tableware, etc.   Usage: Spray this product on both hands or exposed skin surface, gently rub for 1 minute to achieve disinfection and sterilization effect, without the need for rinsing with water.   Notes: For external use only, not for oral use. Store indoors in a cool and dry place, avoiding high temperatures and direct sunlight. Please avoid mixing with soap and other anionic surfactants to avoid affecting the disinfection effect.   Ahsuperchem supply Didecyl dimethyl ammonium chloride and Dodecyl dimethyl benzyl ammonium chloride, which are commonly used raw materials for disinfectants. If you have any interests, please contact us freely.