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Acrylic Acid

Acrylic Acid

Product Titles:Acrylic acid CAS No.:79-10-7 EINECS No.:201-177-9 MF:C3H4O2 Purity:99.5% Min MW:72.06

Product details

Product Titles:Acrylic acid

CAS No.:79-10-7

EINECS No.:201-177-9

MF:C3H4O2

Purity:99.5% Min

MW:72.06

 

Characters

Acrylic acid (IUPAC: prop-2-enoic acid) is an organic compound with the formula CH2=CHCO2H. It is the simplest unsaturated carboxylic acid, consisting of a vinyl group connected directly to a carboxylic acid terminus. This colorless liquid has a characteristic acrid or tart smell. It is miscible with water, alcohols, ethers, and chloroform. More than a thousand kilotons are produced annually.

 

Production:

Acrylic acid is produced from propene which is a byproduct of ethylene and gasoline production.

CH2=CHCH3 + 1.5 O2→ CH2=CHCO2H + H2O

Because acrylic acid and its esters have long been valued commercially, many other methods have been developed but most have been abandoned for economic or environmental reasons. An early method was the hydrocarboxylation of acetylene ("Reppe chemistry"):


HCCH + CO + H2O → CH2=CHCO2H

This method requires nickel carbonyl and high pressures of carbon monoxide. It was once manufactured by the hydrolysis of acrylonitrile which is derived from propene by ammoxidation, but was abandoned because the method cogenerates ammonium derivatives. Other now abandoned precursors to acrylic acid include ethenone and ethylene cyanohydrin.

Dow Chemical Company and a partner, OPX Biotechnologies, are investigating using fermented sugar to produce 3-hydroxypropionic acid (3HP), an acrylic acid precursor. The goal is to reduce greenhouse gas emissions.

Apearance and properties: colorless liquid, stimulating odour

CAS number: 79-10-7

melting point (°C) : 13.5

relative density (water = 1) : 1.05

boiling point (°C) : 141

relative vapor density (air = 1) : 2.45

molecular formula: C3H4O2

molecular weight: 72.06

saturation vapor pressure (kPa) : 1.33 (39.9 °C)

heat of combustion (kJ/mol) : 1366.9

 

Acrylic acid Basic information

Product Name:

Acrylic acid

CAS:

79-10-7

MF:

C3H4O2

MW:

72.06

EINECS:

201-177-9

 

Acrylic acid Chemical Properties


Melting   point 

13 °C(lit.)

Boiling   point 

139 °C(lit.)

density 

1.051 g/mL at   25 °C(lit.)

vapor   density 

2.5 (vs air)

vapor   pressure 

4 mm Hg ( 20 °C)

refractive   index 

n20/D 1.421

Fp 

130 °F

storage   temp. 

15-25°C

Water Solubility 

MISCIBLE

Sensitive 

Air Sensitive

Merck 

14,130

BRN 

635743

Stability:

Stability   Unstable - may contain p-methoxyphenol as an inhibitor. Prone to hazardous   polymerization. Combustible. Incompatible with strong oxidizing agents,   strong bases, amines. Contact with oxidizers may cause fire. Light and air   sensitive. Hygroscopic.

CAS DataBase   Reference

79-10-7(CAS   DataBase Reference)

NIST Chemistry   Reference

2-Propenoic   acid(79-10-7)

EPA Substance   Registry System

2-Propenoic   acid(79-10-7)

 

 Safety Information: 


Hazard   Codes 

C,N

Risk   Statements 

10-20/21/22-35-50

Safety   Statements 

26-36/37/39-45-61

RIDADR 

UN 2218 8/PG 2

WGK   Germany 

1

RTECS 

AS4375000

8-13

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29161110

Hazardous   Substances Data

79-10-7(Hazardous   Substances Data)

Chemical   Properties

colourless   liquid with an acrid odour

Usage

An antibacterial   agent.

 

Specifications

SPECIFICATIONS

Item

 Acrylic   Acid

Appearance

Clear,   colorless, volatile liquid

Density    g/cm3

1.052

Freezing   point  ℃

13.5

Boiling   point(760mmHg)℃

141

Viscosity   cp (20 ℃)

1.25

Flash   point ℃

50(close   cup)/68(open cup)

Explosion point

Floor limit

2.4

with air

Superior limit

8

Product   standard:GB/T17529.1-2008



Item



Color(APHA)

≤15


Purity%(WT)

≥99.2


Water%(WT)

≤0.1


Inhibitor   ppm(WT)

200±20


 

 

 

 

Functions

1.Acrylic acid is mainly used as the raw material of acrylic esters, others as the intermediate of water-soluble resin, co-polymers, Vinyl emulsion co-polymers.

2.As one of most important organic raw materials, it is mainly used in such products as Vinyl acetate, acetic anhydride, diketene, acetate ester, acetate, acetate fiber and chloroactic acid etc.

3.It is an important raw material for synthesized fiber, gooey, medicines, pesticides and dyes, and also a good organic solvent.

4.It is widely applied in such industries as of plastics, rubbers and printing etc. Manufacture of , vinyl acetate; Widely usedinsolvents, dyes, celluloseacetate, pharmaceuticals, in-socticides, textile printing, photographic film and coagulating rubber latec.

5.Widely used in coatings, elastomers, adhesives, thickeners, super absorbent compounds, acrylic, and polymer electrolytes.Used in the professional sport places such as basketball court,badminton court,tennis court etc.

6.used  the surface decoration of terrace,corridor,parking lot etc.It is the best choosing for the inner room and outer place of school,kid garden,nursing home,army,enterprise and institution etc.

 


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