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Suberic Acid, a solder flux activator
Identification
Synonyms: Octanedioic acid (IUPAC); 1,6-Hexanedicarboxylic Acid; Octanedioic Acid; KORK Acid; CORK Acid; C8 Dicarboxylic Acid
De: Suberinsäure ES(PT): Ácido Subérico Fr: Acide Subérique Ru: Субериновая кислота Ja: スベリン酸
CAS No.: 505-48-6
EINECS No.: 208-010-9
China Customs Code: 2917 1900.90 (no customs restriction)
HS code: 291719
Molecular Weight: 174.196
Molecular Formula: C8H14O4
Structural Formula: 
Flashing Point: 210 °C (Closed Cup)
Water solubility: 0.6g/L at 20 °C
Application
Suberic acid is used for synthesis of medicine, high-temperature-resist plastics. Also used as a polyacid activator in solder-flux to remove metal oxides in Surface Mount Technology (SMT) process.
Specification*
| Appearance | white crystalline powder |
|---|---|
| Suberic Acid Assay (HPLC) | 99.0% min. |
| Boiling Point (°C) | 228 to 232 |
| Melting Point (°C) | 141 to 144 |
| Acidity (mg KOH/g) | 640 to 644 |
| Iron as Fe | 4 ppm max. |
| Chorides as Cl | 0.005% max. |
| Heavy Metals | 2 ppm max. |
Standard Packaging
25kgs/fiber drum, on pallet.
Risks and Safety Information
Suberic acid is not regulated by UN. Safe for air, land and sea transportation
Risk Phrase: R36/37/38
Safety Phrase:S26, S36, S39
Warning: Irritant
