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r-butyrolactone
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Chemicalname: 1,4-butyrolactone; gamma-butyrolactone; BLO; GBL
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CAS NO.:96-48-0
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Properties:
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Molecular Formula:
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C4H6O2
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Molecular Weight:
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86.09
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Structural Formula:
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Density(D420)g/ml:
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1.125~1.135
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Melting Point:
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-44℃
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Boiling Point:
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206℃
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Flash Point:
Ignition temperature
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99.2℃
455℃
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Refractive Index:nd20
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1.434~1.440
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Appearance:
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Colorless clear oily liquid with acetone-like odor
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Specification:
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γ-butyrolactone specification(Operative Standard: Q/1400MCX001-2009) :
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Item
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Excellent Grade
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Test Method
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Appearance
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Colorless transparent liquid
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Eye-measurement
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Purity %
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≥99.90
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Gas chromatography
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Moisture %
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≤0.050
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Karl Fischer method
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Tone APHA
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≤15
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Colorimetry
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Density (D420) g/ml
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1.125—1.135
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Proportion
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Refractive rate (nD20)
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1.434—1.440
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Spectrophotometry
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Uses:
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(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.
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Storage and Transportation:
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Stored in cool and airy place; away from fire and heat; handle with care; no breakage, avoid leakage.
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