Chemical name: γ- butyrolactone
Chinese alias: the γ- hydroxybutyrate GBL; 1,4- butyrolactone; γ- butyrolactone (99.5%)
English name: gamma-butyrolactone
CAS NO:. 96-48-0
Formula:> C4H6O2
Weight: 86.1
Structure:
Properties: colorless, transparent, similar to acetone smell oily liquid, boiling point 204 ℃, miscible with water, acetone, carbon tetrachloride and ethanol decomposition in hot lye, aromatic odor.
Product specifications :( enterprise standard: Q / PGM001-2007)
Indicators
Capacitance level Ordinary Level Industrial grade
Purity (Wt%) 99.9 Min 99.8 Min 99.5 Min
Water (Wt%) 0.03 Max 0.05 Max 0.1 Max
Chroma HaZen 10 Max 20 Max 30 Max
Density (D420g / ml) 1.125 ~ 1.135 1.125 ~ 1.135 1.125 ~ 1.135
Refractive index (ND20>) 1.435 ~ 1.438 1.435 ~ 1.438 1.435 ~ 1.438
Packing: galvanized metal pail or polyethylene drum, barrel, net weight 210 kg.
Uses: γ--butyrolactone is an important chemical intermediates> while also a good performance of high boiling solvent, that is preferably an antioxidant, a plasticizer, extraction agents, absorbents, dispersing agents, sticking agent, coagulant it has a high boiling point, strong solvency, good electrical conductivity and stability, convenient to use and manage security advantages. Through the open-loop or open-loop chemical reaction, producing a variety of fine chemicals, and there are many kinds of important heterocyclic compounds, widely used in medicine, pesticides, synthetic resin additives, food feed additives, dyes and pigments, electronics and so on in the field .
1 Industrial:
(A) synthetic pyrrolidone series products. Can be used in the manufacture a- pyrrolidone, N- methylpyrrolidone, N- ethyl pyrrolidone, polyvinyl pyrrolidone and the like;
(2) extraction agent petrochemical industry. Additives for absorbing alkynes, aromatic hydrocarbons, alcohols and cyclic ether extraction agent, lubricating oil additives;
(3) synthetic fiber spinning solvent, setting agent, dyeing auxiliary, an antistatic agent. The solvent used for spinning acrylic fibers and solidification of the solvent, the cellulose ester of wool, nylon dyeing auxiliaries, nylon fibers, antistatic agents;
(4) a synthetic resin ideal antioxidant, a plasticizer, a dispersing agent, a fixing agent and a solvent. Used as a polypropylene, polyvinyl chloride, polystyrene solvent dispersant polyvinyl fluoride, a variety of resin dyeing modifiers, antioxidants, plasticizers and the like;
(5) is the raw material for the production of perfume, ink lubricants and rust agents.
2 Ordinary Level: use in agroforestry areas, is intermediate in the production of plant growth, herbicides, synthetic pesticides, feed additives, etc..
Capacitance Level 3: In the pharmaceutical industry anesthetic and sedative used as a treatment for epilepsy, cerebral hemorrhage and hypertension, X-ray contrast agent, can be synthesized antibacterial drug ciprofloxacin and interferon. Intermediate also vitamin B1, butyric acid, etc., and cyclopropylamine.
In addition, also be used as battery electrolyte capacitor production, Caijuan fineness and so on.
GBL electrolyte with
A capacitive level product specifications :( enterprise standard: Q / PGM001-2007)
Indicators Unit Standard values Detection
γ- butyrolactone content area-% Min. 99.9
1,4-butanediol content area-% Max. 0.10
THF Area-% Max. 0.05
Moisture Wt .-% Max. 0.03
Chroma APHA Max. 10
Acidity (acid dollars) Wt .-% Max. 0.03
The following parameters have been identified as typical:
Parameter Unit Value Parameter Unit Value Remarks
CI- Wt.-ppm Max. 0.3
Zn Wt.-ppm Max. 0.05
typical SO42- Wt.-ppm Max. 1.0
Pb Wt.-ppm Max. 0.05
typical NO2- Wt.-ppm Max. 1.0
Na Wt.-ppm Max. 0.5
typical Fe Wt.-ppm Max. 0.05
K Wt.-ppm Max. 0.5
typical
Second, the packaging: galvanized iron or polyethylene drum, barrel, net weight 210 kg.
γ-butyrolactone (GBL)
