Product show
Maleic Acid, a solder flux activator
Identification
Synonyms: cis-2-butenedioic Acid; (2Z)-2-Butenedioic acid (IUPAC)
De: Maleinsäure Es(Pt):
Ácido maleico Fr: Acide maléique Ru:
Малеиновая кислота Ja:マレイン酸
CAS No.: 110-16-7
EINECS No.: 203-742-5
China Customs Code: 29171900.90
HS code: 291719
Molecular Weight: 116.072
Molecular Formula: C4H4O4
Structural Formula: 
Boiling Point: 275 °C
Flashing Point: 100°C
Solubility: Soluble in water, ethanol, acetone, glacial acetic acid
Application
Maleic acid is mainly used to manufacture unsaturated resin, pesticides and other orangics. Maleic acid supplied by Wanjie International are specially used as a binary acid activator in solder flux to remove metal oxides in Surface Mount Technology (SMT) process.
Specification*
| Appearance | white crystalline powder |
|---|---|
| Maleic Acid Purity | 99.0% min. |
| m.p. | 133°C to 135°C |
| Iron as Fe | 5 ppm max. |
| Fumaric Acid | 0.1% max. |
| Moisture | 0.2% max. |
| Heavy Metals | 10ppm max. |
| Sulphated ash | 0.1% max. |
| Clarity | conform |
Standard Packaging
25kgs/fiber drum, on pallets.
Risks and Safety Information
UN 3261, Class 8 PG III
Risk Phrase:R22, R36/37/38, R43
Safety Phrase:S26, S28, S28A, S37, S46, S24
Warning: Corrosive Solid
