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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: 2,3-dibromo-2-butene-1,4-diol
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 0.05% 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

Packaging photo coming soon

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

Pictogram caution

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