BLO_Alcohol & Hydroxybenzene & Ether_Basic Organic Chemicals_Chemicals_Products

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 %	≥99.50	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