W401 Water Vapor Permeability Analyzer Suppliers and Manufacturers

Product Introduction: Polyethylene terephthalate (PET), with the chemical formula (C10H8O4) n, is synthesized by exchanging dimethyl terephthalate with ethylene glycol ester or esterification of terephthalic acid with ethylene glycol, followed by condensation reaction to obtain dihydroxyethyl terephthalate. Belonging to crystalline saturated polyester, it is a milky white or light yellow, highly crystalline polymer with a smooth and glossy surface. It is a common resin in daily life and can be divided into APET, RPET, and PETG. It has excellent physical and mechanical properties over a wide temperature range, with a usage temperature of up to 120. Its electrical insulation is excellent, and even at high temperatures and frequencies, its electrical performance is still good. However, it has poor corona resistance, creep resistance, fatigue resistance, friction resistance, and dimensional stability. Product advantages: 1. It has good mechanical properties, with an impact strength 3-5 times that of other films, and good bending resistance. 2. Oil resistant, fat resistant, acid and alkali resistant, and resistant to most solvents. 3. It can be used for a long time in the temperature range of 55-60, and can withstand high temperatures of 65 and low temperatures of -70 for short-term use. Moreover, its mechanical properties are minimally affected by high and low temperatures. 4. Gas and water vapor have low permeability and excellent resistance to gas, water, oil, and odor. 5. High transparency, can block ultraviolet rays, and has good gloss. 6. It is non-toxic, odorless, and has good hygiene and safety, and can be directly used for food packaging. Product application: The main applications in the field of electronic appliances include: electrical sockets, electronic connectors, rice cooker handles, TV yokes, terminal blocks, circuit breaker casings, switches, motor fan casings, instrument mechanical parts, cash counting machine parts, electric irons, and accessories for electromagnetic stoves and ovens; Flow control valves, carburetor covers, window controllers, foot transmissions, and distribution panel covers in the automotive industry; Machinery industry gears, blades, pulley, pump parts, wheelchair body and wheels, lampshade shell, illuminator shell, drain pipe connector, zipper, clock parts, spray parts. It can be spun into polyester fiber, also known as polyester. Can be made into thin films for use as substrates, insulation films, product packaging, etc. for recording, recording, and film production. As plastic, it can be blown into various bottles, such as cola bottles, mineral water bottles, etc. Can be used as electrical components, bearings, gears, etc.

4-Chloro-3,5-dimethyl is a white crystalline powder. Melting point 115-116 C, boiling point 246 C. At 20 C, 1g can be dissolved in 3L water, 1 part of 95% alcohol, ether, benzene, terpenes, non-volatile oils. It has a slight smell and can volatilize with water vapor. Stable in hot water.

Name: N,N-bis[3-(dimethylamino)propyl]-N',N'-dimethylpropane-1,3-diamine Boiling point 297.7�±8.0 �°C(Predicted) density 0.892�±0.06 g/cm3(Predicted) vapor pressure 1.333hPa at 10�ºC storage temp. 2-8�°C solubility Chloroform (Sparingly), Methanol (Slightly) form Oil pka 10.05�±0.28(Predicted) color Colourless Water Solubility 54.99g/L at 25�ºC LogP 0.05 at 25�ºC

HFA 152a Medical gas, also known as 1,1,-difluoroethane, is a pharmaceutical-grade propellant widely used in various medical products. Technical Parameters of HFA 152A Appearance: Clear, colorless liquid and vapor Physical State: Gas at ambient temperatures Molecular Weight: 66.05 Odor: Faint ethereal odor Specific Gravity (Water = 1.0): 0.909 @ 21.1C (70F) Solubility in Water (Weight %): Unknown pH: Neutral Boiling Point: -24.05C (-11.29F) Freezing Point: -117C (-178.6F) Vapor Density (Air = 1.0): 2.29 Evaporation Rate: 1 (compared to CCl4 = 1) Volatiles: 100% Flash Point: Not applicable Advantages of HFC-152a: HFC-152a is a versatile compound utilized in various applications, including refrigerants, foaming agents, and aerosol propellants for products such as hair sprays, air fresheners, and insecticides. Additionally, it serves as a key raw material in the production of mixed refrigerants and acts as an intermediate in organic synthesis for vinylidene fluoride, a primary industrial ingredient for polyvinylidene fluoride (PVDF) and fluoroelastomers.

Melting point -40 �°C (lit.) Boiling point 197 �°C (lit.) density 0.925 g/mL at 25 �°C (lit.) vapor density 4.1 (vs air) vapor pressure 0.02 mm Hg ( 20 �°C) refractive index n20/D 1.427(lit.) Fp 201 �°F storage temp. Store below +30�°C. solubility H2O: 1 M at 20 �°C, clear, colorless form Slightly Viscous Liquid pka 15.10�±0.29(Predicted) color Clear PH 6-8 (25�ºC, 1M in H2O) Odor Ammonia-like. explosive limit 1-9.9%(V) Water Solubility soluble 2-Methyl-2,4-pentanediol (MPD) is a diol organic compound with a chiral carbon atom. It is a colorless liquid at room temperature and can be Diacetonee alcohol is hydrogenated. The appearance is colorless liquid with mild sweetness. It is miscible with water, soluble in ethanol, and soluble in most organic solvents.

Melting point -46 �°C Boiling point 209-210 �°C(lit.) density 0.806 g/mL at 25 �°C(lit.) vapor pressure 12.4Pa at 20�ºC refractive index n20/D 1.4359(lit.) Fp 165 �°F storage temp. Sealed in dry,Room Temperature solubility miscible form Liquid pka 10.07�±0.28(Predicted) color Clear colorless to yellow Water Solubility miscible LogP 1.99 at 23�ºC

HPMA is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330�ºC. HPMA has obvious threshold effect under high temperature (350�ºC) and high pH(8.3)level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300�ºC with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also used as additives for cement.

Paraxylene (PX) is an important aromatic hydrocarbon with various industrial applications, primarily in the production of purified terephthalic acid (PTA), which is a key precursor for polyester fibers and polyethylene terephthalate (PET). Here are some of its notable properties and uses: Properties of Paraxylene: Melting Point: 12-13 C Boiling Point: 138 C Density: 0.861 g/mL at 20 C Vapor Density: 3.7 (compared to air) Vapor Pressure: 9 mm Hg at 20 C Refractive Index: n20/D 1.495 Flash Point: 77 F Storage Temperature: Recommended at +5C to +30C Solubility: Slightly soluble in water (0.2 g/L) Appearance: Colorless liquid pKa: >15. Applications: PTA Production: Approximately 65% of PTA produced is used to manufacture polyester fibers, which are widely used in clothing and textiles. PET Bottles: About 30% of PTA is converted into PET, commonly used for beverage bottles and packaging. Plastic Products: The remaining 5% is utilized in various plastic products, including films and food containers

CAS 110918 HS Code 2931901990 Packing and Storage Packing In 200kgs net steel or plastic drum Storage Keep tightly closed Keep away from heat sparks and open flame Morpholine is a colorless waterabsorbing oily liquid It is soluble in water and common solvents such as ethanol benzene ether and glycol Morpholine as a metal corrosion inhibitor is mainly used to prevent corrosion of metals such as iron copper zinc and lead Morpholine is used as a raw material for medicine rubber accelerator and fluorescent whitening agent Melting point 75 C lit Boiling point 12601300 C 129 C lit density 0996 gmL at 25 C lit vapor density 3 vs air vapor pressure 31 mm Hg 38 C refractive index n20D 1454lit Fp 96 F storage temp Store below 30C Application Used as an intermediate for organic synthesis especially for rubber chemicals for vulcanization and stabilization Corrosion inhibitors and so on

Toluene 99 CAS 108883 Molecular Formula CHCH Molecular Weight 9214 gmol Specifications Absorbance 1 cm cell vs water 001 max at 350 nm 002 max at 335 nm 007 max at 310 nm 01 max at 300 nm 04 max at 288 nm 1 max at 285 nm Density 08660 gmL Assay Percent Range 99 Residue after Evaporation 0001 max Water Content 003 max Vapor Pressure 29 mbar at 20C Additional Information MDL Number MFCD00008512 Beilstein Registry Number 05 280 Merck Index 15 9688 InChI Key YXFVVABEGXRONWUHFFFAOYSAN IUPAC Name Toluene PubChem CID 1140 SMILES CC1CCCCC1 ChEBI ID CHEBI17578 Synonyms Methylbenzene Toluol Phenylmethane Benzene Methyl Methylbenzol Methacide ToluSol Monomethyl Benzene

Raw Material: Dichloromethane (Methylene Chloride) Dichloromethane, also known as DCM, methylene chloride, or methylene bichloride, is an organic compound commonly used as a solvent in various industrial applications. Chemical Properties: Chemical Formula: CHCl CAS Number: 75-09-2 Appearance: Colorless, transparent liquid Odor: Irritating ether-like odor with a sweet, chloroform-like scent Solubility: Dichloromethane is slightly soluble in water and fully soluble in ethanol and ether. It exhibits low polarity and is miscible with many organic solvents, making it versatile for various applications. Physical Properties: Under normal usage conditions, dichloromethane is a non-flammable, low-boiling solvent. It serves as an effective replacement for flammable solvents such as petroleum ether and ether, particularly in environments where safety is a concern. However, caution is advised when vapor concentrations become elevated, especially in high-temperature air.

CAS : 71-36-3 HS Code : 2905130000 Packing : 25kgs/drum, 200kg/Drum ,1000kg/Ton drum Application N-Butanol is an organic compound with the chemical formula CH3(CH2)3OH, which is a colorless and transparent liquid that emits a strong flame when burning. It has an odor similar to fusel oil, and its vapor is irritating and can cause coughing. The boiling point is 117-118 �° C, and the relative density is 0.810. 63% n-butanol and 37% water form an azeotrope. Miscible with many other organic solvents. It is obtained by fermentation of sugars or by catalytic hydrogenation of n-butyraldehyde or butenal. Used as a solvent for fats, waxes, resins, shellac, varnishes, etc., or in the manufacture of paints, rayon, detergent etc

Product Name: LITHIUM METASILICATE Synonyms: LITHIUM SILICATE, 99.5%LITHIUM SILICATE, 99.5%LITHIUM SILICATE, 99.5%LITHIUM SILICATE, 99.5%;LITHIUM METASILICATE in stock Factory;LITHIUM METASILICATE;LITHIUM SILICATE;LITHIUM SILICATE (META);dilithium metasilicate;Lithiummetasilicate,99%;Lithium metasilicate, 99.5% (metals basis) CAS: 10102-24-6 MF: Li2O3Si MW: 89.97 EINECS: 233-270-5 Product Categories: metal silicate Mol File: 10102-24-6.mol Application Lithium metasilicate is an inorganic compound that has a high resistance to heat and acid. It is used as an additive to zirconium oxide membranes, which are used in membrane separation processes. It has been shown to have a high transport capacity for water vapor and sodium carbonate. This property makes it suitable for use in the clinical setting where it has been shown to have biological properties and clinical relevance.

Product Name: N-Cyclohexyl-2-pyrrolidone Synonyms: 1-cyclohexyl-2-pyrrolidinon;1-cyclohexyl-pyrrolidin-2-one;n-cyclohexyl;n-cyclohexylpyrrolidinone;CHP;Cyclohexyl-2-pyrrolidone;LABOTEST-BB LT00159787;1-CYCLOHEXYL-2-PYRROLIDINONE CAS: 6837-24-7 MF: C10H17NO MW: 167.25 EINECS: 229-919-7 Melting point 12 �°C Boiling point 154 �°C7 mm Hg(lit.) density 1.007 g/mL at 25 �°C(lit.) vapor pressure 0.05 mm Hg ( 25 �°C) refractive index n20/D 1.499(lit.) Fp >230 �°F storage temp. Sealed in dry,Room Temperature pka -0.49�±0.20(Predicted) form clear liquid color Colorless to Orange to Green Water Solubility Soluble

CAS : 7704-34-9 HS Code : 28020000 Packing : 25kg/Bag Application Sulfur alias sulfur, colloidal sulfur, sulfur block. The appearance is light yellow brittle crystal or powder, with special odor. The molecular weight is 32.06, the vapor pressure is 0.13kPa, the flash point is 207â??, the melting point is 119â??, the boiling point is 444.6â??, and the relative density (water =1) is 2.0. Sulfur is insoluble in water, slightly soluble in ethanol, ether, easily soluble in carbon disulfide. As a flammable solid, sulfur is mainly used in the manufacture of dyes, pesticides, matches, gunpowder, rubber, rayon and so on. Sulfur is an important variety of inorganic pesticides. The product is yellow solid or powder, with obvious odor and can be volatilized. Sulfur water suspension is slightly acidic, insoluble in water, and reacts with alkali to form polysulfide. Sulfur burns with a cyan flame and produces sulfur dioxide gas. In production, sulfur is often processed into colloidal suspension for the prevention and control of pests and diseases, which is safe for people and animals and is not easy to cause drug damage to crops.

Methyl tert-butyl ether (MTBE) is a colorless, transparent, low-viscosity, volatile liquid with a distinctive odor and an oxygen content of 18.2%. lts vapor is heavier than air. Diffuses along the ground and burns when co-existing with strong oxidants. The main use of methyl tert-butyl ether is as an organic solvent and can also be used as a gasoline additive to make it more antiknock. Application ethyl tert-butyl ether (MTBE) is mainly used as gasoline additive, has excellent knock resistance, improves octane number, and can also be cracked to produce isobutene has good miscibility with gasoline, less water absorption, no pollution to the environment, can be improved as an analytical solvent, extractant, in chromatography especially high pressure liquid chromatography as a removal agent, and some polar solvents such as water, methanol, ethanol and other azeotrope formation. Mtbe also has a mild narcotic effect. Ethyl tert-butyl ether (MTBE) is mainly used as gasoline additive, has excellent knock resistance, improves octane number, and can also be cracked to produce isobutene has good miscibility with gasoline, less water absorption, no pollution to the environment, can be improved as an analytical solvent, extractant, in chromatography especially high pressure liquid chromatography as a removal agent, and some polar solvents such as water, methanol, ethanol and other azeotrope formation. Mtbe also has a mild narcotic effect.