Products Description
Adipic acid is an important organic dibasic acid with the structural formula HOOC(CH2)4COOH. It can undergo salt-forming reaction, esterification reaction, amidation reaction, etc., and can be polycondensed with diamine or diol to form high molecular polymer. Adipic acid is an industrially important dicarboxylic acid. It plays an important role in chemical production, organic synthesis industry, medicine, and lubricant manufacturing. Its output ranks second among all dicarboxylic acids.
Application
1. Adipic acid is mainly used in the production of nylon fibers and engineering plastics.
2. It is also widely used in the production of polyurethane and other esters, most of which are used in the production of PU, shoe sole slurry, polyurethane foam, etc., and a small part is used as advanced lubricating oil.
3. Higher esters of adipic acid can be used as plasticizers for polyvinyl chloride and its copolymers, and natural synthetic rubber.
4. A large amount of adipate is used in polyvinyl chloride for food packaging, film and insulation.
5. Adipic acid is also used as an acidulant for various foods and beverages.
Adipic acid is a synthetic fiber, nylon 66, nylon engineering plastics, polyurethane foam, synthetic leather (PU), the main raw material of synthetic rubber and film, also can be used in medicine, pesticides, spices, such as the production of adhesives and soldering flux.
Packaging & Shipping
Logistics transportation methods can be divided into various ways according to the different transportation means.
Different transportation ways had different features.We will consider wholelly and decide according to cargo situation,cargo type,delivery period,transportation cost.
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Sodium Citrate, E331, CAS no.68-04-2, the sodium salt of Citric Acid, also called trisodium citrate, colorless crystals or white crystalline powder soluble in water. Sodium Citrate used as a food additive, usually for flavor or as a preservative. Along with other salts of citric acid, such as Magnesium Citrate, Calcium Citrate and Potassium Citrate.
As an experienced Sodium Citrate manufacturer and supplier, we has been supplying and exporting Sodium Citrate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.
Sodium Citrate Specification
ITEM STANDARD
CHARACTERISTIC WHITE CRYSTAL POWDER
IDENTIFICATION PASS TEST
APPEARANCE OF SOLUTION PASS TEST
ALKALINITY PASS TEST
LOSS ON DRYING 11.00-13.00%
HEAVY METALS NOT MORE THAN 5PPM
OXALATES NOT MORE THAN 100PPM
CHLORIDES NOT MORE THAN 50PPM
SULPHATES NOT MORE THAN 150PPM
PH VALUE (5% AQUEOUS SOLUTION) 7.5-9.0
PURITY 99.00-100.50%
READILY CARBONISABLE SUBSTANCES PASS TEST
PYROGENS PASS TEST
ARSENIC NOT MORE THAN 1PPM
LEAD NOT MORE THAN 1PPM
MERCURY NOT MORE THAN 1PPM
Chemical Properties
Boiling point 40 C
density 0.967 g/mL at 25 C(lit.)
vapor pressure 23 hPa (195 C)
refractive index 1.439
Fp 82 F
storage temp. Flammables area
solubility Miscible with alcohol, isopropyl alcohol and toluene.
form Oily Liquid
Specific Gravity 0.9671
color Light yellow
Item Specifications
Appearance Colorless transparent or light yellow liquid
Purity % 99.99
Aluminum content % 10.2-12.5
Density ( g/cm3) 0.92-0.97
