| CAS No.: | 108-31-6 |
|---|---|
| Formula: | C4H2O3 |
| EINECS: | 203-571-6 |
| Type: | Pharmaceutical Intermediates |
| Appearance: | Crystal |
| Quality: | Industrial |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 
Factory Price Unsaturated Resin CAS 108-31-6 Chemical Raw Materials Butenedioic Anhydride Ma Dehydrated Maleic Anhydride
Colorless orthogonal acicular crystal or white crystalline powder. Soluble in water, acetone, benzene, chloroform and other organic solvents. Solubility (gllOOg) at 25ºC in the following solvents: acetone 227, ethyl acetate 112, chloroform 52.5 I benzene 50 I toluene 23.4; O-xylene 19.4; Carbon tetrachloride 0.60; Petroleum ether 0.25. Dissolve in alcohol to form esters. Dissolved in dioxane. Sublimation by heat. Risk of burning in high heat, open flame or contact with oxidants. It's corrosive. It is slowly hydrolyzed in cold water to produce maleic acid. Contact with strong oxidants can cause combustion and explosion. If the temperature exceeds 66ºC, the polymerization reaction will occur in contact with amines or alkali metals.
| Characteristics | Units | Guaranteed Values |
| Appearance | White briquettes | |
| Purity(by MA) | WT% | 99.5 min |
| Molten Colour | APHA | 25 Max |
| Solidifying Point | ºC | 52.5 Min |
| Ash | WT% | 0.005 Max |
| Iron | PPT | 3 Max |
Q: Are you a trade company or factory?
A: We are a factory based trading company, we have two specialized warehouses in Zibo and Qingdao port.
Q: How can I get sample for testing?
A: Kindly send us your address, and we will arrange sample for you immediately.
Q: What is your main product?
A: Our main products are ammonium chloride, calcium chloride, sodium metabisulfite, adipic acid, cyclohexanone, and glacial acetic acid, etc.
Q: How do you control the quality?
A: Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.
Q: How long time you can make the shipping?
A: We can make the shipping within 10 days after confirming the order.
Q: Where is your factory located? How can I visit the factory?
A: Our factory located in Zibo, China. It is only two hours from Beijing.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}