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Suberic Acid, a solder flux activator


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: Suberic Acid
Flashing Point: 210 °C (Closed Cup)
Water solubility: 0.6g/L at 20 °C


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.


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.

Packaging photo coming soon

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


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