Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of isopropyl palmitate liquid cas 142-91-6 in China. Welcome to wholesale bulk high quality isopropyl palmitate liquid cas 142-91-6 for sale here from our factory. Good service and reasonable price are available.
Isopropyl palmitate liquid, mainly composed of palmitic acid isopropyl ester, also known as hexadecyl acid isopropyl ester or 1-methylethyl hexadecyl ester. The molecular formula is c19h38o2, the structural formula is CH3 (CH2) 14cooch (CH3) 2, CAS 142-91-6. A colorless to light yellow oily liquid with excellent permeability, not easily volatile at room temperature, and relatively stable. It is not easily oxidized or hydrolyzed, flammable, and has a slight greasy odor. Soluble in organic solvents such as ethanol and ether, insoluble in water and glycerol, can penetrate the skin. It is a high-level fatty acid ester with general properties of hydrolysis, ammonolysis, and ester exchange. However, it is relatively stable, does not oxidize in air at room temperature, is not easily hydrolyzed, and has good stability. Therefore, it is not suitable to conduct chemical reactions at room temperature, and the required reaction conditions are relatively harsh. It also has some special uses. In the field of skincare and cosmetics, it is an excellent skin softener that can make the skin soft, smooth, and free from greasiness. It has good permeability and can be used as a good solvent for pigments in eyelashes. It is often used in skin cream, hair oil, eye shadow, lipstick, eyelashes and other formulations. These characteristics make isopropyl palmitate have broad application prospects in the cosmetics industry.
|
Chemical Formula |
C19H38O2 |
|
Exact Mass |
298 |
|
Molecular Weight |
299 |
|
m/z |
298 (100.0%), 299 (20.5%), 300 (2.0%) |
|
Elemental Analysis |
C, 76.45; H, 12.83; O, 10.72 |
|
|
|
Melting point 11-13 ° C (lit.), Boiling point 160 ° C 2mm, Density 0.852 g/ml at 25 ° C (lit.), Refractive index n20/d 1.438 (lit.), Flash point >230 ° f, Storage condition 2-8 ° C, Solubility <0.001g/l, Morphological neat, Color colorless, Not miscible or difficult to mix with water, BRN 1786567, InChIKeyXUGNVMKQXJXZCD-UHFFFAOYSA-N, Hazard description h315-h319, Precautions p264-p280a-p305+p351+p338-p321-p332+p313-p337+p313, Dangerous goods sign Xi, Hazard category code 36/38-36/37/38, Safety instructions 26-36, WGK Germany -, RTECS No. rt4900000.
There are four methods to synthesize Isopropyl Palmitate Liquid:
(1) Direct esterification of palmitic acid and isopropyl ester: in the presence of strong solid acid catalyst such as zirconia, palmitic acid and isopropyl alcohol are esterified, the water generated by esterification reaction and excess isopropyl alcohol are separated under total reflux, the product is filtered out of the solid catalyst, evaporated under reduced pressure, and the isopropyl palmitic acid fraction is obtained;
(2) In the presence of zeolite supported zinc catalyst, palmitic acid can react with propylene at 2.75kpa to form isopropyl palmitate;
(3) The mixture of propylene and palmitic acid also generates isopropyl palmitate through sulfonic acid ion exchange resin;
(4) Transesterification: take the oil containing palmitic acid oil as raw material, such as palmitic acid oil, coconut oil, etc. Firstly, methyl esters of fatty acids such as palmitic acid were prepared by transesterification with methanol; That is, in the presence of sodium hydroxide or sodium ethanol, the oil containing palmitic acid grease undergoes transesterification reaction with methanol at 50~70 ℃ to generate a mixture of methyl esters of fatty acids such as palmitic acid. The reaction product is distilled to separate methyl esters of other fatty acids to obtain methyl palmitic acid. Methyl palmitate is transesterified with Isopropanol at 85~95 ℃, methanol and other impurities are evaporated to obtain isopropyl palmitate.
Isopropyl palmitate liquid, also known as Hexadecanoic Acid Isopropyl Ester, with a molecular formula of C ₁₉ H ∝₈ O ₂, is a colorless to light yellow oily liquid with a slight oily taste. Its physical properties include low volatility, flammability, insolubility in water and glycerol, but easy solubility in organic solvents such as ethanol and ether. With its unique chemical structure and stability, isopropyl palmitate has demonstrated extensive application value in various fields such as cosmetics, pharmaceuticals, industrial lubricants, and food packaging.
1. Basic skincare and moisturizing effects
As the "gold ingredient" in cosmetics, it is widely used in skin creams, lotion, facial mask and other products due to its low viscosity, lipophilic and non-ionic surfactant properties. Its core functions include:
Moisturizing: By forming a breathable protective film, it prevents the loss of skin moisture and penetrates into the stratum corneum, enhancing skin elasticity. For example, adding 2% -5% IPP to face cream can make the product fine and smooth, without greasy feeling after application.
Solubilization and dispersion: As a solubilizer of essence and pigment, it can improve the stability of the product. In liquid foundation, IPP can evenly disperse pigment particles, avoid caking, and enhance product ductility.
Anti static and spreading properties: In hair oils and conditioners, IPP can reduce hair static electricity and improve combing smoothness; In sunscreen, its spreadability ensures that the sunscreen evenly covers the skin, enhancing the protective effect.
2. Key components of cosmetics products
Lipstick and lipstick: IPP, as an oily carrier, can dissolve pigments and improve the gloss of the product. For example, IPP accounts for 8% of the lipstick formula of a well-known brand, which makes lipstick smooth and has high color saturation.
Eye shadow and eye black: The permeability of IPP makes it an ideal solvent for pigments in eye black, while preventing eye shadow powder from flying and improving the makeup holding effect. The experimental data showed that the curl and water resistance of eye black with 3% IPP were significantly better than those of the traditional formula.
Foundation make-up and concealer: IPP can make foundation make-up more suitable for the skin and cover pores and fine lines by adjusting the viscosity of the product. A study pointed out that the makeup removal rate of liquid foundation containing IPP decreased by 30% in the 48 hour makeup holding test.
3. Special care and efficacy products
Anti aging products: IPP's antioxidant properties can synergize with ingredients such as vitamin E, neutralize free radicals, and delay skin aging. In anti wrinkle essence, IPP and retinol can enhance the penetration efficiency of active ingredients.
Antibacterial and anti-inflammatory products: IPP has inhibitory effect on Staphylococcus aureus, Propionibacterium acnes, etc., and is commonly used in acne gel and antibacterial soap. For example, IPP accounts for 2% in a certain acne product, which can significantly reduce inflammatory reactions.
Sunscreen and post sun repair: IPP improves SPF values by stabilizing the dispersibility of sunscreen agents such as titanium dioxide and zinc oxide; In post sun repair cream, its moisturizing effect can alleviate skin redness and swelling.
Pharmaceutical field: from formulation excipients to functional raw materials
1. Medicinal excipients and solvents
Transdermal absorption enhancer: The lipid solubility of Isopropyl palmitate liquid makes it a key component of drug transdermal patches. For example, in nitroglycerin patches, IPP prolongs the duration of drug efficacy to 24 hours by dissolving the drug and enhancing skin permeability.
Ointment base: IPP mixed with Vaseline and Lanolin can adjust the viscosity of the ointment and improve drug release efficiency. A study shows that ointments containing IPP have a 40% longer retention time on the skin compared to traditional matrices.
Extended release formulation carrier: The chemical stability of IPP makes it suitable for microencapsulation technology to control drug release rate. For example, in ibuprofen sustained-release capsules, IPP serves as an oil phase carrier, which can maintain the efficacy for 12 hours.
2. Functional pharmaceutical products
Antibacterial disinfectant: IPP's inhibitory effect on bacteria and fungi makes it an active ingredient in medical disinfectants and antibacterial wipes. For example, IPP accounts for 5% of a brand of disposable disinfection gel, which can quickly kill 99.9% of common pathogens.
Wound care products: IPP's moisturizing and anti-inflammatory properties make it suitable for use in wound dressings and burn ointments. Experiments have shown that dressings containing IPP can shorten wound healing time by 20%.
Pediatric and sensitive skin medication: IPP's non irritating and non allergenic properties make it the preferred ingredient for children's skincare products and baby lotions. A clinical study showed that IPP has no sensitization reaction on the skin of infants and young children at low concentrations (1% -2%).
Industrial lubrication and metal processing: efficient and environmentally friendly solutions
1. Metal forming lubrication
Stamping and stretching process: IPP's low viscosity characteristics enable it to form a uniform lubricating film in aluminum and steel stamping, reducing mold wear. For example, in automotive parts stamping, IPP based lubricants can reduce surface roughness by 50%.
Forging and extrusion process: IPP's high temperature resistance (flash point>150 ℃) makes it suitable for high-temperature forging. In the forward extrusion of copper materials, IPP can replace traditional mineral oil, improving the surface smoothness of the product by 30%.
Environmental advantages: IPP is biodegradable and non corrosive to equipment, meeting the requirements of the EU REACH regulation for industrial lubricants.
2. Rust prevention and short-term protection
Precision parts rust prevention: The hydrophobicity of IPP can form a protective layer on the metal surface, isolating moisture and oxygen. For example, in short-term storage of bearings, IPP coating can reduce the corrosion rate by 80%.
Transport rust prevention: IPP combined with gas-phase rust inhibitor can be used for rust prevention treatment of metal goods in sea freight containers. Experimental data shows that IPP based rust proof film can sustainably protect metals for 720 hours in salt spray testing.
3. Lubrication of light load equipment
Chain and gear lubrication: IPP is suitable for low-speed, light load equipment (such as bicycle chains, office equipment gears). Its noise reduction characteristics can reduce the operating noise of equipment by 10-15 decibels, while extending the lifespan of components.
Food machinery lubrication: IPP's NSF H1 certification allows it to be used for lubrication of food processing equipment, avoiding oil contamination of food. For example, in the lubrication of the bread production line chain, IPP can reduce the number of shutdowns for cleaning.
1. Food packaging materials
Plastic film modification: IPP, as a plasticizer, can enhance the flexibility of polyethylene (PE) and polypropylene (PP) films. For example, adding 1% -3% IPP to food packaging film can increase the puncture resistance of the film by 20%.
Coatings and adhesives: The solvent properties of IPP make it suitable for food contact grade coatings. In aluminum foil composite film, IPP based adhesive can enhance interlayer bonding and prevent content leakage.
2. Food additives (strictly compliant)
Gum matrix: IPP can be used as a softener for chewing gum to enhance the chewing experience. However, it should be noted that its use as a food additive must comply with GB 2760 "National Food Safety Standard for the Use of Food Additives".
Chocolate coating: IPP's low temperature stability makes it suitable for chocolate cocoa butter coating, preventing anti sanding phenomenon.
Other industrial applications: from coatings to cleaning agents
1. Coatings and inks
Solvent based coatings: IPP can replace some volatile organic compounds (VOCs) and reduce coating odor. For example, adding 5% IPP to wood paint can shorten drying time by 30% and improve the glossiness of the paint film.
Printing ink: IPP's solubilization properties make it suitable for gravure printing ink, preventing pigment precipitation. In plastic film printing, the adhesion of IPP based ink is 15% higher than that of traditional ink.
2. Cleaning agents and solvents
Industrial cleaning agent: IPP can dissolve pollutants such as grease and wax, and is commonly used for cleaning metal parts. For example, in car engine cleaning, IPP based cleaning agents can efficiently remove carbon deposits and are non corrosive.
Electronic component cleaning: IPP's low residue characteristics make it suitable for precision electronic component cleaning, avoiding electrostatic damage.
1. Synthesis of nanomaterials
IPP can be used as a dispersant for nanoparticles to improve material uniformity. For example, in the preparation of quantum dots, IPP can prevent particle aggregation and improve luminescence efficiency.
2. 3D printing materials
The rheological properties of Isopropyl palmitate liquid make it suitable for photo cured 3D printing resins. By adjusting the IPP content, resin viscosity can be controlled and printing accuracy can be improved.
3. Biodegradable materials
The combination of IPP and polylactic acid (PLA) can enhance the flexibility of biodegradable plastics. For example, adding 10% IPP to disposable tableware can increase the material's elongation at break by 50%.
Hot Tags: isopropyl palmitate liquid cas 142-91-6, suppliers, manufacturers, factory, wholesale, buy, price, bulk, for sale