1,4-Bis(2-hydroxyethoxy)-2-butyne CAS 1606-85-5

CAS: 1606-85-5

Molecular Formula: C8H14O4

Molecular Weight: 174.19

EINECS: 216-526-0

Synonyms: 1,4-Di(2-hydroxyethoxy)butyne-2; BEO; 3,8-DIOXA-5-DECYNE-1,10-DIOL; 1,4-BIS(2-HYDROXYETHOXY)-2-BUTYNE; 1,4-DI(2-HYDROXYETHOXY)-2-BUTYNE; 2-BUTYNE-1,4-DIOL BIS(2-HYDROXYETHYL) ETHER; 2-BUTYNE-1,4-DIOL-BIS(HYDROXYETHYL ETHER); 2,2'-[2-BUTYNE-1,4-DIYLBIS(OXY)]BISETHANOL; 2,2'-but-2-ynylenedioxydiethanol

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What is 1,4-Bis(2-hydroxyethoxy)-2-butyne CAS 1606-85-5?

1,4-Bis (2-hydroxyethoxy) -2-butyne (BEO) is a condensation product of butynediol and epoxyethane, and is one of the commonly used long-term nickel plating intermediates, which refines the grain size of the coating; Usually used in conjunction with auxiliary brighteners such as saccharin, PME, PPS, PVSS, COSS, PESS, or MOSS.

Specification

Item	Specification
Boiling point	225.17°C (rough estimate)
Density	1.144 g/mL at 25 °C(lit.)
Flash point	>230 °F
pKa	13.95±0.10(Predicted)
Purity	99%

Application

1,4-Bis (2-hydroxyethoxy) -2-butyne long-lasting brightener, weak leveling agent, used as an electroplating brightener, is one of the commonly used long-lasting nickel plating intermediates, which refines the grain size of the coating