Introduction
Name: Maleic acid
CAS No: 110-16-7
Molecular Formula: C4H4O4
Maleic acid irritates the skin and mucous membranes, causing conjunctival and corneal swelling, visual impairment, and even blindness. Skin contact with liquid acid can cause burns. Wear protective equipment during operation. The equipment shall be sealed to prevent leakage. The site shall have good ventilation conditions. Rinse with plenty of water after being contaminated with maleic acid.
Specifications
|
Item |
Specification |
|
Assay % |
99-101 |
|
Appearance |
White needle crystals |
|
Melting point℃ |
133-135 |
|
Cl % |
≤0.01 |
|
Ash content % |
≤0.1 |
Packing: 25kg/bag.
Other specifications and packings of products can be provided as required.
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Application
- Maleic acid is a new acidulant in food and beverage industry. Adding appropriate amount of maleic acid in food and beverage can enhance the special fruit flavor and improve the taste. At present, maleic acid is mainly used in fruit juice, ready-to-drink tea, orange juice, sports drinks and other fortified fruit-flavored drinks and foods.
- Maleic acid can also be used to make unsaturated polyester resins.
Chemical & physical properties
|
Molecular formula |
C4H4O4 |
|
Molecular weight |
116.072 |
|
CAS NO |
110-16-7 |
|
EINECS NO |
203-742-5 |
|
Density |
1.449 g/cm³ |
|
Appearance |
White solid |
|
Flash point |
183.0 ℃ |
|
Melting point |
133-138℃ |
|
Boiling point |
355.5℃ |
|
Water Solubility |
478.8 g/L at 25℃ |
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