Butyl glycidyl ether

The 2-azo derivative (322), when heated with butyl glycidyl ether in acetic acid, reacts through the ring nitrogen (Scheme 186) (585). 

Butyl ether Butyl carbitol /i-Butyl glycidyl ether Butyl mercaptan p-tert-Butyltoluene Carbon disulphide Carbon dioxide Carbon monoxide Carbon tetrachloride Carbonyl sulphide Carbary ... 

Butyl cellosolve (2-butoxy ethanol) n-Butyl glycidyl ether n-Butyl mercaptan n-Butylamine p-tert-Butyltoluene... 

Butyl cellosolve, see 2-Butoxyethanol tert-Butyl chromate (as CrOj) n-Butyl glycidyl ether n-Butyl lactate Butyl mercaptan p-tert-Butyltoluene Cadmium, dust and salts (as Cd) Cadmium, fume (as Cd)... 

Over 30 commercial formulations have been surveyed in depth. Compressive strength measurements permit the exclusion of materials obviously prone to fail under pressure. FTIR (MX-1, Nicolet Instrument Corp.) analysis has identified formulations with volatile diluents capable of chemically modifying the composite membrane. Through the use of FTIR it was possible with an otherwise successful formulation to identify the presence of butyl glycidyl ether (BGE) as a diluent. Subsequently experimentation showed that vapor of BGE is capable of plasticizing porous polysulfone with a drop in both flux and rejection of the membrane. Collaboration with the supplier resulted in substitution of a nonvolatile glycidyl ether diluent to avoid the problem. 

Toxicology. -Butyl glycidyl ether (BGE) causes central nervous system depression and is a mild irritant of the eyes and skin in animals it is expected that severe exposure will cause the same effects in humans. 

The 2003 ACGIEI threshold limit valuetime-weighted average (TLV-TWA) for n-butyl glycidyl ether is 25ppm (133mg/m ). 

NIOSH Occupational Safety and Health Guidelines for Chemical Hazards n-Butyl Glycidyl Ether Supplement II-OHG, pp 184. Division of Standards Development and Technology Transfer, US Department of Health and Human Services, Cincinnati, OH, DHHS (NIOSH) Publication No 89-104, 1988... 

Butoxy ethanol sec-Butyl acetate t-Butyl acetate n-Butyl acetate sec-Butyl alcohol t-Butyl alcohol n-Butyl alcohol n-Butyl glycidyl ether p-tert-Butyl toluene... 

Monofunctional epoxy diluents are used primarily with DGEBA epoxy blends. The most common monofunctional diluents are butyl glycidyl ether and phenyl glycidyl ether. The effect of butyl glycidyl ether and other reactive diluents on the viscosity of epoxy resin is shown in Fig. 6.3. Because the monofunctional diluents reduce crosslink density, they are used at relatively low levels to avoid degrading heat and chemical resistance or other properties of the adhesive. 

The reaction of polyols with epichlorohydrin produces polyglycidyl ethers, such as butanediol diglycidyl ether. These are only slightly less effective viscosity reducers than butyl glycidyl ether, but they are less volatile and contribute less to worker irritation problems. They also produce less loss in physical properties. 

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