Manufacturer Supply High Quality CAS 542 -28-9 Delta-Valerolactone

Model NO.
TY-02AL
Colour
White
Assay
99%
Shelf
2 Years
Place
China
Package
Foil Bag
Transport Package
25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
Specification
25kg/drum
Trademark
tongyon
Origin
China
Production Capacity
5000kg/Month
Reference Price
Please contact us for quote
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Product Description

Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone
Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone

Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone
 
Product name delta-Valerolactone
CAS 542-28-9
Appearance White powder
Assay 99%
Storage Cool and Protect from light


Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone
delta-Valerolactone
Product Name delta-Valerolactone

CAS 542-28-9

MF C5H8O2

MW 100.12

EINECS 208-807-1

MOL File 542-28-9.mol

Chemical Properties

Melting point -13 °C
Boiling point 230 °C
Density  1.105 g/mL at 20 °C
vapor density  3.45 (vs air)
refractive index  n20/D 1.457(lit.)
Flash point 212 °F
storage temp.  -20°C
form  Liquid
color  Clear colorless to pale yellow
Water Solubility  miscible
BRN  106436
CAS DataBase Reference 542-28-9(CAS DataBase Reference)
NIST Chemistry Reference 2H-Pyran-2-one, tetrahydro-(542-28-9)
EPA Substance Registry System 2H-Pyran-2-one, tetrahydro- (542-28-9)



Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone
Usage And Synthesis
Description

δ-valerolactone, also known as 1,5-valerolactone, delta-valerolactone, tetrahydro-2H-2-pyrone, tetrahydro-o-pyrone, tetrahydrocoumarin; the English name is Delta -Valerolactone, the abbreviated name is generally δ -VL or DVL, and the molecular formula is C5H802. 

Uses

Due to its good application flexibility, lower biological toxicity, more derivative compounds, easy polymerization and greatly increase the viscosity of coatings and other characteristics, delta-valerolactone is widely used in polyesters, polyurethanes, special solvents, and coatings.

Preparation

In the first step, the 1,5-pentanediol raw material is fed into the drying tower for dehydration, to ensure that the water content is less than 1wt%, under optimized conditions, less than 0.5wt%, further optimization, less than 0.1wt%, further optimization situation , Less than 0.05wt%, that is, 500wppm; in the second step, the dried 1,5-pentanediol is mixed with hydrogen and then enters the vaporizer. The molar ratio of hydrogen to 1,5-pentanediol is 10-5:1 The third step will be vaporized 1,5-pentanediol and hydrogen into the dehydrogenation reactor, under the normal pressure of 0.1MPa, 230-270 conditions, under the action of the dehydrogenation catalyst, 1,5-pentanediol Alcohol is converted into δ-valerolactone, in which the yield of δ-valerolactone exceeds 98%, and the water content of the exported crude product is less than 0.5wt%

GuangZhou TongYi biochemistry technology Co., Ltd is a company specializing in active pharmaceutical ingredient
(API), biology, plant extracts, chemical raw materials, fine chemicals, pharmaceutical intermediates, cosmetics raw
material. Our company has always adhered to the company philosophy of integrity, professionalism, quality first, and
customer service. With the efforts of all the company's employees, it has established long-term
and stable cooperative relations with many domestic and foreign customers, and won the unanimous trust of domestic
and foreign customers. With good comments, our company have made great progress.

Our company takes pioneering and innovative, high-quality and efficient as the code of conduct, and strives to provide
customers with efficient services,
high-quality products, and reasonable prices. We have established a customer demand-oriented, flexible, diverse and customizable service according to the different needs of different customers. Mode, and ultimately achieve the goal of
win-win.

Our company focuses on the future and the world, and will continue to devote itself to technological progress and the
development of new products in the future, hoping to work hand in hand with new and old friends at home and abroad
to create a better future.

Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone Manufacturer Supply High Quality CAS 542-28-9 Delta-Valerolactone

 

Organic Intermediate

PNEUTEC.IT, 2023