Product show
2,3-Dibromo-2-Butene-1,4-Diol
Identification
Synonyms: DBD; DBBD; 2,3-dibromo-1,4-dihydroxy-2-butene; 2,3-dibromobutene-1,4-diol; (E)-2,3-Dibromo-2-butene-1,4-diol; 2,3-dibromo-1,4-butylene glycol; solder flux DBD
CAS No.: 3234-02-4
EINECS No.: 244-313-2
China Customs Code: 2905590090
HS code: 290559
Molecular Weight: 245.8982
Structural Formula: 
Molecular Formula: C4H6Br2O2
m.p.: 112~114 °C
Solubility in water: 1~5 g/100ml @ 21 °C
Application
As a kind of surfactant and activating agent, trans-2,3-Dibromo-2-Butene-1,4-Diol is widely used as a component of solder flux to formulate Surface Mount Technology (SMT) solder paste. It can destroy metal oxide film of interface of SMC/SMD and PCB, reduce surface tension, improve wettability and prevent reoxidation without producing flux residue. Also applied in pharmaceutical synthesis, etc
Specification*
| DBD Content | 98.5% min. |
|---|---|
| Loss on drying | 0.1% max. |
| M.p. (°C) | 112~116 |
| Residues on ignition | 0.1% max. |
| Acidity | 0.5% max. |
| Appearance | white fine crystalline powder |
Standard Packaging
2,3-Dibromo-2-Butene-1,4-Diol (DBD) is not regulated as hazardous goods
Caution: Irritant
Risk Phase: R36/37/38
Safety Phase: S26, S37/39
For more information please refer to MSDS
Risks and Safety Information
2,3-Dibromo-2-Butene-1,4-Diol is not regulated as hazardous goods
Caution: Irritant
Risk Phase: R36/37/38
Safety Phase: S26, S37/39
For more information please refer to MSDS
