1, Physical and chemical properties
The scientific name of itaconic acid is methylenesuccinic acid.
Legal No.: CAS NO: 97-65-4
Molecular weight: 130.1; Molecular formula: C5H6O4;
Itaconic acid is white crystal or powder; Melting point: 165-168 ºC, specific gravity: 1.632, soluble in water, ethanol and other solvents. Itaconic acid has active chemical properties and can carry out various addition reactions, esterification reactions and polymerization reactions.
2, Production method: microbial fermentation
3, Main purpose
1. Itaconic acid and its polymer can be made into highly effective deodorant by adding a small amount of natural substances, which can react with ammonia, amine alkaline odors, hydrogen sulfide and other acidic odors, and can also be made into paper, plastic film and other series products with deodorization function.
2. Itaconic acid can be copolymerized with styrene and butadiene to make S.B.R latex, which can be used for paper film coating to make the paper strong and strong and the printing pattern bright; It is used for metal and concrete coatings, easy to color and not affected by natural conditions; Used as paint additive to improve paint quality; Used for carpet sizing can make synthetic fiber carpet durable.
3. Itaconic acid is polymerized with acrylic acid or methacrylic acid or its ester to form resin, which can be used for surface coating and emulsion paint. As a leather coating, it can increase the plasticity of leather; As a coating for automobiles, electrical appliances and cold storage, it has the advantages of strong adhesion, beautiful color and bad weather resistance; It has excellent adhesion as an electrophoretic coating; The dental adhesive with good extrusion performance, strong adhesion and good physiological adaptability can be made by adding multivalent metal oxides; Water-soluble coating can be made by adding chloroalkyl dimethyl benzyl ammonium chloride, which can be used in food packaging materials to reduce bacterial contamination on the surface of packaging materials.
4. The esters made from itaconic acid can be used in paints, weakly acidic ion exchange resins, lubricating oil additives, adhesives and plasticizers, powdered plastics and sealants.
5. Other derivatives of itaconic acid can be used as medicine, cosmetic reagents, lubricants, thickeners, herbicides and to improve the properties of silk and wool fabrics.
6. Itaconic acid ester is the raw material for the production of citric acid, mesoconic acid, itaconic anhydride, etc.
4, Quality index
Appearance: white crystal or powder
Content% ≥ 99.6
Melting point (initial melting - final melting) ºC: 165-168
Loss on drying%: ≤ 0.2
Burning residue%: ≤ 0.03
Chromaticity (APHA): ≤ 5
Iron ion (calculated by Fe)%: ≤ 0.0002
Heavy metal (calculated by pb)%: ≤ 0.001
Chloride (calculated by Cl -)%: ≤ 0.0005
Sulfate (as SO42 -)%: ≤ 0.002
5, Packaging
1. Bags: net weight of each bag is 25kg, with plastic inside and woven paper outside.
2. According to the user's requirements, the special packaging can provide 500 kg, 1000 kg and other large packages.
6, Transportation and storage
Moisture-proof, sun-proof, rain-proof, not allowed to be stacked in the open air, and not allowed to be mixed with toxic, odorous, colored powder or corrosive substances. Avoid contact with skin and eyes. If you accidentally bring in the middle and eyes of the entrance, please wash them with water.
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