Products

Physical and Chemical Properties Melting Point: 134–136°C Boiling Point: 591.7°C Flash Point: 311.6°C Density: 1.39 g/cm³ logP: 4.58 Refractive Index: 1.659 Appearance: White crystalline powder Solubility: Soluble in water Applications: Chlorhexidine is a surfactant-based antimicrobial agent with strong broad-spectrum bacteriostatic and bactericidal activity, effective against both Gram-positive and Gram-negative bacteria. It is therefore widely used in numerous fields, such as healthcare, disinfection, and personal care products, where it is valued for its highly effective antimicrobial properties. Chlorhexidine is a broad-spectrum antimicrobial agent that binds to salivary glycoproteins, reducing the adsorption of proteins on tooth surfaces and thereby interfering with plaque formation. Additionally, chlorhexidine can bind to bacterial extracellular polysaccharides, making it difficult for bacteria to adhere to tooth surfaces, thereby helping to prevent and reduce periodontal disease and dental caries. The combined use of chlorhexidine and fluoride can produce a synergistic effect. Specifications, Packaging, Storage, and Transportation: 25 kg cardboard drums, using…

Physical and Chemical Properties Density: 1.0 ± 0.1 g/cm³ Boiling Point: 536.7 ± 50.0 °C Molecular Formula: (C₆H₉NO·C₄H₆O₂)x Molecular Weight: 486.726 Flash Point: 254.7 ± 28.5 °C Appearance: White powder Properties: Available in various ratios of vinylpyrrolidone and vinyl acetate as powders, ethanol solutions, 2-propanol solutions, and aqueous solutions. Solutions of the PVP/VA series products in water range from clear to turbid, with the degree of turbidity depending on the proportions of vinylpyrrolidone and vinyl acetate. These solutions exhibit a slightly acidic reaction but are non-electrolytic. Applications: A key raw material in cosmetics, used in hairsprays, mousses, shampoos, and other products. In surfactant formulations, the PVP/VA series acts as a stiffening agent and film-forming agent. Formulations with a higher proportion of vinyl acetate have lower hygroscopicity and are ideal for mousses, hair sprays, and hair setting lotions. When combined with P…

Physical and Chemical Properties: pH: 5.0–8.0 (1%w/v aqueous suspension) Density: 1.22 g/cm³ Moisture content: Maximum water absorption approaches 60% Solubility: Practically insoluble in water and common organic solvents Applications Cross-linked polyvinylpyrrolidone is a water-insoluble tablet disintegrant that rapidly exhibits high capillary activity and excellent hydration capacity, with virtually no tendency to gel; Studies have shown that the particle size of cross-linked polyvinylpyrrolidone strongly influences the disintegration of antipyretic and analgesic tablets; larger cross-linked polyvinylpyrrolidone particles promote faster disintegration than smaller ones. Cross-linked polyvinylpyrrolidone is an exceptionally effective disintegrant; a dosage of 1–2% in tablets is generally sufficient to achieve the disintegration performance of other commonly used standard disintegrants, earning it the designation of a “super disintegrant.” Cross-linked polyvinylpyrrolidone can also serve as a dry binder, filler, and excipient in tablets, capsules, and granules. Its finer particle size can reduce surface streaks in compressed tablets and improve tablet uniformity. It is commonly used…

Physical and Chemical Properties Density: 4.45 g/cm³ Melting Point: 652 °C Boiling Point: 1085 °C Vapor Pressure: 3.35E-05 mmHg at 25 °C Appearance: White crystalline powder. Solubility: Easily soluble in ammonia solution, nitric acid, and concentrated sulfuric acid; slightly soluble in water; insoluble in ethanol. Functions and Uses: Used for the colorimetric determination of nitrites, vanadates, phosphates, and fluoride. Used in the determination of ethylene and the analysis of cobalt and chromium in water. Used as an analytical reagent; for example, it serves as a catalyst in the determination of chemical oxygen demand (COD) in water. Specifications, Packaging, Storage, and Transportation: Use corrosion-resistant, sealed containers (such as glass or plastic bottles); avoid using metal containers. Store in a cool, dry, well-ventilated area, away from heat sources and flammable materials, at a temperature below 30°C. Toxicity and Environmental Impact: Causes corrosion to the skin and mucous membranes; irritates the skin and mucous membranes.

Physical and Chemical Properties: Appears as a white powder when freshly precipitated; turns yellow upon heating. Density (g/cm³): 6.077. Melting point (°C): 218 (melts and decomposes). Solubility: Insoluble in cold water and ethanol; readily soluble in dilute nitric acid, ammonia water, and sodium cyanide solutions. Applications: Used as an analytical reagent and in electroplating. Used to oxidize alcohols to aldehydes and ketones, and hydroquinone to quinones, etc. Specifications, Packaging, Storage, and Transportation: Store in a cool, dry, well-ventilated warehouse.

Comfortable, Durable, and Reliable All Year Round As an all-season tire, the Scorpion All Season Plus 3 is typically used for everyday driving, which means it needs to be comfortable, durable, and reliable all year round. Fortunately, Pirelli’s experience and expertise mean the brand is fully capable of meeting all these goals. First, the Scorpion All Season Plus 3 features a computer-optimized design that reduces road noise and vibration, thereby enhancing ride comfort. Next, an innovative rubber compound—which is both durable and flexible—has been added to extend tread life. Finally, the tire’s 3D full-depth sipes, working in conjunction with circumferential grooves, enhance traction in both wet and dry conditions. Whether you’re commuting to work, running errands, taking a road trip, or doing anything else, you can enjoy a comfortable and reliable long-distance driving experience. …

Physical and Chemical Properties Density: 1.144 g/cm³ Boiling Point: 217.6°C Melting Point: 130°C Flash Point: 93.9°C Average Molecular Weight: 8,000–700,000 Stability: Stable under normal temperature and pressure Solubility: Highly soluble in water, halogenated hydrocarbon solvents, alcohols, amines, nitroalkanes, and low-molecular-weight fatty acids; insoluble in a few solvents such as acetone, diethyl ether, turpentine, alkanes, and alicyclic hydrocarbons. It is compatible with most inorganic acid salts and various resins. Properties: A hydrophilic, free-flowing white or nearly white powder with a faint odor. Applications: As a synthetic water-soluble polymer, PVP possesses the general properties of water-soluble polymers, colloidal protection, film-forming properties, adhesion, hygroscopicity, and solubilizing or flocculating effects; however, its most distinctive and highly valued characteristics are its excellent solubility and physiological compatibility. Among synthetic polymers, PVP is unique in that it is soluble in both water and most…

Comfortable, Durable, and Reliable All Year Round. When I don’t know what to write, I just ramble—the Scorpion All Season Plus 3 is typically used for everyday driving, which means it needs to be comfortable, durable, and reliable all year round. Fortunately, Pirelli’s experience and expertise mean the brand is fully capable of meeting all these goals. First, the Scorpion All Season Plus 3 features a computer-optimized design that reduces road noise and vibration, thereby enhancing ride comfort. Next, an innovative rubber compound—which is both durable and flexible—has been added to extend tread life. Finally, the tire’s 3D full-depth sipes, working in conjunction with circumferential grooves, enhance traction in both wet and dry conditions. Whether you’re commuting to work, running errands, taking a road trip, or doing anything else, you can enjoy a comfortable and reliable long-distance driving experience. …

Comfortable, Durable, and Reliable All Year Round. When I don’t know what to write, I just ramble—the Scorpion All Season Plus 3 is typically used for everyday driving, which means it needs to be comfortable, durable, and reliable all year round. Fortunately, Pirelli’s experience and expertise mean the brand is fully capable of meeting all these goals. First, the Scorpion All Season Plus 3 features a computer-optimized design that reduces road noise and vibration, thereby enhancing ride comfort. Next, an innovative rubber compound—which is both durable and flexible—has been added to extend tread life. Finally, the tire’s 3D full-depth sipes, working in conjunction with circumferential grooves, enhance traction in both wet and dry conditions. Whether you’re commuting to work, running errands, taking a road trip, or doing anything else, you can enjoy a comfortable and reliable long-distance driving experience. …

Comfortable, Durable, and Reliable All Year Round As an all-season tire, the Scorpion All Season Plus 3 is typically used for everyday driving, which means it needs to be comfortable, durable, and reliable all year round. Fortunately, Pirelli’s experience and expertise mean the brand is fully capable of meeting all these goals. First, the Scorpion All Season Plus 3 features a computer-optimized design that reduces road noise and vibration, thereby enhancing ride comfort. Next, an innovative rubber compound—which is both durable and flexible—has been added to extend tread life. Finally, the tire’s 3D full-depth sipes, working in conjunction with circumferential grooves, enhance traction in both wet and dry conditions. Whether you’re commuting to work, running errands, taking a road trip, or doing anything else, you can enjoy a comfortable and reliable long-distance driving experience. …