r-butyrolactone

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r-butyrolactone
Posting date : Jan 11, 2013
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r-butyrolactone Chemicalname: 1,4-butyrolactone; gamma-butyrolactone; BLO; GBL CAS NO.:96-48-0 Properties: Molecular Formula: C4H6O2 Molecular Weight: 86.09 Structural Formula: Density(D420)g/ml: 1.125~1.135 Melting Point: -44℃ Boiling Point: 206℃ Flash Point: Ignition temperature 99.2℃ 455℃ Refractive Index:nd20 1.434~1.440 Appearance: Colorless clear oily liquid with acetone-like odor Specification: γ-butyrolactone specification(Operative Standard: Q/1400MCX001-2009) : Item Excellent Grade Test Method Appearance Colorless transparent liquid Eye-measurement Purity % ≥99.90 Gas chromatography Moisture % ≤0.050 Karl Fischer method Tone APHA ≤15 Colorimetry Density (D420) g/ml 1.125—1.135 Proportion Refractive rate (nD20) 1.434—1.440 Spectrophotometry Uses: (1) GBL can be used to produce a-pyrrolidone, 1-Methyl-2-pyrrolidinone , polyvinyl pyrrolidone, and α-Acetyl-γ-butyrolactone, etc. (2)GBL can be used as anaesthetic and tranquilizer, used to produce ciprofloxacin and interferon, as the intermediate of vitamin and rolicyprine; (3) GBL is the intermediate of plant growth stimulator and insecticide. (4)GBL is a good antioxidant, plasticizer, extractant, adsorbent, dispersant, fixative and curing agent; Moreover, it can also be used in battery, capacitor and development of color film. Storage and Transportation: Stored in cool and airy place; away from fire and heat; handle with care; no breakage, avoid leakage.

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