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  ǰҰ > Special Solvent > Estasol 

 

Estasol

 

 WHAT IS ESTASOL?

ESTASOL is the new solvent: generating a wealth of idoas and concopts where low cost. low toxicity. excellent solvency and high boiling point are important factors.

ESTASOL is a mixture refined dimethyl esters of adipics. glutaric acid and succinic acid is charactorised by it's mad odour and low vapour pressure.

The dimethyl esters are manufactured from a mixed acid stream to the specification as shown below.

PHYSICAL PROPERTIES

Molecular wt (average)

160

SG @ 15.5/15.5

1.09

Viscosity 25 cSt

2.4-2.5

Refractive Index(N20/0)

1.423-1.425

Distillation Range IBP
                         DP

200
230

Freezing Point

-25

Flash Point

100

Solubility in Water @ 20 wt/wt

 5

Vapour Pressure @20mm.Hg max

 0.1

Co-efficient of  expansion per @ 20-

0.00094

Auto Ignition

365

Electrical resistance @ 24 megohms

0.5

 

SPECIFICATION

Dimethyl Succinate % wt/wt

15-25

Dimethyl Glutarate % wt/wt

55-65

Dimethyl Adipate % wt/wt

12-23

Colour Hazen max

15

Water % wt/wt max

0.2

Diester Content % wt/wt min

99

Acidity mg KOH/g max

0.5

Appearance

Clear. colourless liquid

 

  SOLVENTS ESTASOL
  CAN REPLACE

ESTASOL. or biends of ESTASOL. with other low solvents can successfully replace the following solvents.

isophorone

glycol ether acetates

methylene chloride

butyl diglycol

acetone

glycol ehthers

high boiling ketones

ethyl ethoxy propionate

cresylic acid

cyclohexanone

                                                                                   

Chemoxy can provide information sheets providing many different formulation ideas in ESTASOL's major application aroas. These show what can be achieved and promote an innovative approach to reformulation using ESTASOL solvent.

  APPLICATIONS OF ESTASOL

ESTASOL offers an extremely safe. low toxicological but powerful alternative
to traditional solvents in wide range of industrial applications.

Coil Coatings
Paint Strippers
Hand Cleaners
Wood Finishes
Printing Inks   

Cleaning chemicals
Foundry Core Binders
Textile Lubricants
Acrylic Lacquers
High Quality Thinners
 
 

Polyester and Epoxy Primers
High Gloss Stoving Enamets
G.R.P. Resin Cleaning
Pesticides and Insecticides
Sealants and Wax Formulations

Automobile Top Coats
Graffiti Removers
Magnetic Wire Enamels
Plastic Substrate Finishes
Plus many others

                               
                                                     

  HOW DOES ESTASOL COMPARE PHYSICALLY   WITH OTHER HIGH BOILING SOLVENTS?

EVAPORATION RATE

ESTASOL's evaporation rate is unusual in that when the temperature is raise. as in baking conditions, the relative evaporation rates of ESTASOL and other commonly used solvents become much closer than would have been expected from comparing initial boiling points (see Fig 1.)

 Solvent

Evap. Rate Butyl Acetate
=100

Molecular
wt.

 Ethyl Di Glycol Acetate

<1

176

 Ethylene Glycol Diacetate

<1

146

 Tri Propylene Glycol Methyl Ether

<1

206

 Ethyl Di Glycol

<1

134

 Butyl Di Glycol

<1

162

 ESTASOL

1

160

 Di Propylene Glycol Methyl Ether

2

148

 Isophorone

3

139

 Butyl Glycol

6

118

 Ethyl Glycol Acetate

21

132

 2 Ethyl Butyl Acetate

22

144

 Ethyl Lactate

22

118

 Propylene Glycol Methyl Ether  Acetate

35

132

SOLVENCY

ESTASOL exhibits high solvency for a broad range of resins and is compatible with most commonly used solvents. This versatility enables re-formulation to be carride out readily, resulting in immediate cost savings and lowering of toxicity.

ESTASOL is similar in solvency to isophorone,
diacetone alcohol and 2-ethoxyethyl acetate (ethyl glycol acetate). Estasol is normally  blended with other solvents to provide optimisation of properties in formulation.

Solubility with other solvents

ESTASOL is totally miscible with most commonly used solvents including:

Alcohols

Glycol Ethers

Hydrocarbons (except, Xylene partly soluble, Heptane insoluble)

Esters

Glycols

Glycol Ether Acetates

Ketones

Halogenated Solvents

Water-slightly soluble (5%) but can be made miscible by addition of up to 10% Nonionic surfactant, eg Synperonic A3*

 

  VISCOSITY OF ESTASOL SOLVENT AND   OTHER SOLVENTS


Viscosity of Comparable Solvents

Centistokes
25

           ESTASOL solvent blended with
     approoriate solvents and diluents will
     allow a paint maoufacturer to reduce
     the viscosity of the resin system whilst      maintaining, and in some instances.
     increasing. the solids levels.

           ESTASOL's excellent solubility
     performance also makes it possible
     to Increase the percentage of low
     cost solvents in the resin system
     whilst mainaining comparable
     viscosity levels.

Propylene Glycol Methyl Ether Acetate

1.18

Ethyl Glycol Acetate

1.28

Ethyl Glycol

1.50

Propylene Glycol Methyl Ether

1.86

ESTASOL

2.43

Isophorone

2.50

Di Acetone Alcohol

3.00

Butyl Glycol

3.20

Di Propylene Glycol Methyl Ether

3.57

Tri Propylene Glycol Methyl Ether

5.80


  SOLUBILITY OF RESINS

 

  HOW CAN YOU BUY ESTASOL SOVENT?

Many resins are soluble in ESTASOL.
the most important of which are as follows.

Acrylic              Epoxy                  Polyester
Alkyd                Phenolic              Polyvinyl
Amine               Phenoxy              Styrene
Cellulosic         Polyesterimide      Urethane 

     There are few resins that are not soluble
in ESTASOL but these that are only partly soluble (such as polyvinyl acetate) are easily soluble in an ESTASOL blend (eg with 30% N-Methyl-2-pyrrolidone-also available from Chemoxy International.

       Samples are freely available for your evaluation.

       ESTASOL is available in bulk tanker
lots or new steel drums of 220kgs nett
(241kgs Gross)

       ESTASOL is available ex stock from our
plant in UK. or through our network of
international distributors.

YOUR NATIONAL DISTRIBUTOR IS:-

 

 ESTASOL FRACTIONS

 Chermoxy International plants to fractionate ESTASOL. into other mixtures of the 3 components. or single. purified components to satisfy market requirements.
     In addition to ESTASOL. Chemoxy International produce other esters based on adipic. glutaric and succirle acid eg. COASOL. a high performance coastescing solvent.

 

LOWER TOXICITY WITH ESTASOL

 Toxicity tests have been performed on dibasic esters (contaning Dimethyl succinate, Dimethyl glutarate and Dimethyl adipate). The resulting toxicological profile is as follows:

  LOW ORAL TOXICITY

Approximate lethal dose (ALD) in mate rats is 17,000 mg/kg of body weight -this value 
is accepted internationally as a non-toxic level.
LD
50 in mate rats is 8191mg/kg.

No unequivocal treatment-related findings when mate rats were given dosesof up to
50.000 ppm in diet for 14 consecutive days.

  LOW INHALATION TOXICITY

The concentration in the air when ESTASOL is used is low because of its low vapour pressure (the equilibrium vapour concentration for pure dibasic ester in air at 20 is only 1.4 mg/litre).

A 4 hour inhatation test on rats using an aerosol of dibasic ester estimated the approximate lethal concentration to be 4.5 mg/litre-this value is accepted internationally as 'slightly toxic'.

A 90 day study of rats exposed to vapour concentration down to 0.16 mg/litre showed lesions of nasal tissue. No other deleterious effects were reported.

A 2 week repeat dose inhalation study at concentrations up to 0.9 mg/litre in the rat induced no treatment-related changes.

  LOW DERMAL TOXICITY

The LD50 for intact shaved rabbit skin is greater than 2250 mg/kg. which is the maximum feasible dose-this value is accepted internationally as a non-toxic level.

  NO SIGNIFICANT OCULAR HAZARD

Tests in the rabbit produced slight corneal opacity. no irritic effect and only mild transient conjunctival irritation in washed or unwashed eyed. The corneal opacity regressed within 3 day.

A limited number of cases of temporary blurred vision have been reported in areas of usage in solvent cleaning applications. where adequate ventilation has not been provided.

No corrosive action to the rabbit eye.

Normal handling precautions and good hygiene practices such as wearing glasses or goggles and flushing the eyes with water following eye contact will alleviate any significant ocular hazard to man.

  LOW MUTAGENIC POTENTIAL

Negative result in the standard Ames Test with and without enzyme activation.

Estasol is  not considered to pose a genotoxic hazard.

AS a precaution we recommend that workers use the normal precautions for handling a typical organic solvent. Although the potential damage to eyes is much less than that with many other solvents. we draw attention to the flushing of eyes with water following contact and attention by a physician.

A complete review of toxicological and ecotoxicological data and separate Health and Safety data sheet are available.

 

  ENVIRONMENTAL DATA

ESTASOL is readily Biodegradable as illustrated by the following data using OECD 301C method.
Bio-Oxidation as % of theoretical oxygen demand.

 

BOD5

BOD10

BOD15

BOD20

BOD28

ESTASOL

44

56

64

69

75

 

 

 

 

 

 

Dibasic ester solvents are defined as photochemically non-reactive by California South Coast District Rule 102 (old rule 66).

 The three components of ESTASOL SOLVENT. Dimethyl adipate. Dimethyl glutarate and Dimethyl succinate are included in the European Inventory of Existing Commercial Chemical Substances (EINECS) Advance Edition Master Inventory.

    EINECS


 

EINECS No.

Cas No.

Formula

Dimethyl Succinate

2034199

106-65-0

C6H10O4

Dimethyl Adipate

2110206

627-93-0

C8H14O4

Dimethyl Glutarate

2142772

1119-40-0

C7H12O4

In the USA the Dimethyl esters of adipic. glutaric and succinic acid are included in the TSCA Chemical Inventory. The official TSCA entries are identical with those in the EINECS.