A NEW AGE IN POLYESTER TELOCHNOLOGY

The DuPont Polyester Enterprise is a US$4 billion business comprised of three Strategic Business Units (SBUs):DuPont Polyester Resins and intermediates, DuPont Dacron@ which includes all of the polyester fibers business, and DuPont Polyester Films. The acquisition of ICI's Polyester business in February 1998 was the second largest in DuPont's 200 year history and makes DuPont the leading global suppliers of products based on polyester chemistry



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MSDS
Material safety Data Sheet

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 1. IDENTIFICATION OF THE SUBSTANCE/PREPATATION AND COMPANY /UNDERTAKING

PRODUCT NAME : PURE TEREPHTHALIC ACID

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Address/Phone No.: Duont Far Eastern Petrochemicals Ltd.
No 47 Ching Chien 4th Rd., Kuan Yin Industrial Park, Taoyuan, Taiwan
886 3 483 8855(switchboard)
Emergency Phone No.: 886 3 483 5525
   
 2. COMPOSITION/INFORMATION ON INGREDIENTS HSZARDOUS INGREDIENT(S) / CAS No. / Symbol R Phrases
Contains no Hazardous Ingredients (93/112/EEC)
 3. HAZARDS INDNTIFICATION
Group A dust. The material can form flammable dust clouds in air. Low systemic toxicity. Practically non-irritant to skin, eyes and respiratory system. Terephthalic acid when dosed to rats at high levels has caused the formation of bladder stones. These have been associated wity bladder tumours. This effect is unlikely to occur in humans because the levels used and the route of administration are inapporopriate to foreseeable conditions of use.
 4. FIRST-AID MEASURES

Inhalation:

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Remove patient from exposure. Obtain medical attention if ill effects occurs.

Skin Contact:

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Remove contaminated clothing. Wash skin with water. Obtain medical attention if ill effects occur.

Eye Contact:

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Irrigate with eyewash solution or clean water, holding the eyelids apart,for at least 10 minutes.
Obtain medical attention.

Ingestion:

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Do not induce vomiting. Wash out mouth with water and give 200-300 ml (half a pint) of water to drink.
Obtain medicl attention.

 Further Medical Treatment

Unlikely to be required but if necessary treat symtomatically.
 
 5. FIRE-FIGHTING MEASURES

Group A dust. The material can form flammable dust clouds in air.
Combustion will evolve toxic and irritant vapours.
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Extinguishing Media: dry powder , foam or water fog. Do not use water jet.
Fire Fighting Protective Equipment: A self contained breathing apparatus and suitable protective clothing should be worn in fire conditions.
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 6. ACCIDENTAL RELEASE MEASURES

Clear up spillages. Transfer to a container for disposal or recovery.
Caution - spillages may by slippery.
 
 7. HANDLING AND STORAGE
 7.1 HANDLING
Avoid contact with eyes. Avoid prolonged skin contact.
Control dust formation.
Atmospheric levels should be controlled in compliance with the occupational exposure limit.

Process Hazards
High voltage static electricity build up is possible when handling, therefore continuous earthing of equipment is essential. The atmosphere of any silo or pneumatic transfer equipment where dust explosions could occur should be blanketed with inert gas to below 10% oxygen level.
 
 7.2 STORAGE
Take precautionary measures against static discharges.
 
 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Wear suitable respiratory protective equipment if exposure to levels above the occupational exposure limit is likely.
Good working practice suggests gloves and goggles should be worn.

Occupational Exposure Limits
HAZARDOUS INGREDIENT(S)
LTEL 8hr TWA STEL Time
ppm mg/m3 ppm mg/m3 mins
     
Terephthalic acid

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- COM
 
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 9. PHYSICAL AND CHEMICAL PROPERTIES
Form: @ free floving powder
Color : @ white
Odour : @ almost odourless
pH(Value) : @ No data.
Melting Point(Deg C) : @ 425 in sealed tube
Flash Point(Deg C) : @ Not applicable.
Flammable Limits(Lower)(%v/v) : @ 40 g/m3
Explosive Properties :
    
@ Group A dust. The material can form flammable dust clouds in air.
max. rate of pressure rise : 45500kPa/s
max explosion pressure : 790kPa
Oxidising Properties :  @ No data.
Vapour Pressure(Pascals) : @ 0.00000003 at 10 Deg C
Density(g/ml) : @ 1.5
Solubility(Water) : @ insoluble(15mg/l at 10 Deg C
Partition Coefficient : @ log Pn-octanol/water:1.2 - 2
Flammable Powder Class : @ A
Minimum Ignition Temperature(Deg C): @ 500
Minimum Ignition Energy(mJ) : @ 50
Bulk Density(g/ml) : @ 1.12
Sublimation temperature : @ 300Deg C
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 10. STABILITY AND REACTIVITY

Hazardous Reactions:

Keep away from strong oxidising agents.

Hazardous Decomposition Product(s):

None known.

 11. TOXICOLOGICAL INFORMATION
Inhalation : @ High concentrations of dust may be irritant to the upper respiratory tract.
Skin Contact : @ Non-irritant following repeated applications to rat skin.
Unlikely to cause skin irritation in man.
May cause physical abrasion in contact wity skin.
Unlikely to be hazardous by skin absorption. Dermal
Median Lethal Dose > 2000 mg/kg(rabbit).
It is not a skin sensitiser.
Eye Contact : @ Slight/mild imitant to rabbit eyes.
May cause physical abrasion in contact wity eyes.
Permanent damage is unlikely.
Ingestion : @ Low oral toxicity. Oral Median Lethal Dose >6400mg/kg(rat).
Long Term Exposure : @ Inhalation studies in animals have shown that repeated exposures produce no sighificant effects.

Terephthalic acid when dosed to rats at high levels has been associated with bladder tumours. No effects were observed below a 1% level in the diet. Futher work has demonstrated that the tumours are directly related to bladder stone formation which in turn is caused by the supersaturation of the urine of rats fed very high doses of terephthalic acid. This effect is unlikely to occur in humans because the levels used and the route of administration are inapporpoiate to foreseeable conditions of use. There is no evidence of mutagenic or clastogenic potential.

Studies in animals have shown that high exposures produce no adverse reproductive effects.
 12. ECOLOGICAL INFORMATION
Environmental Fate and Distribution
Solid with low volatility.
The substance is essentially insoluble in water.
The substance has low poterntial for bioaccumulation.

Persistence and Degradation
The substance is substantially biodegradable.
There is evidence of rapid degradation in water.
Ready Biodegradation:>70%
Inherent Biodegradation:>90%

Toxicity
Low toxicity to aquatic organisms.
WGK 1(seof classification)
LC50(rainbow trout)(96 hour)(semi-static) 798-1640 mg/I
EC50(Daphnia magna)(48 hour)>980mg/l
 13. DISPOSAL CONSIDERATIONS

Bury on an authorised landfill site or incinerate under approved controlled conditions. Disposal should be in accordance with local, state or national legislation.
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 14. TRANSPORT INFORMATION

Not Classified Dangerous for Transport.
UK TANKER LABELLING - NON-HAZARDOUS CHEMICAL(s)
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Emergency Action Code :  2{Z}
Warning Phrase :  NONE
   
 15. REGULATORY INFORMATION

Not Classified as Dangerous for Supply/Use.
Not Classified as Dangerous for te Environment(Aquatic).
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 16. OTHER INFORMATION
 

This data sheet was prepared in accordance with Directive 93/112/EC.

Use:raw material

Local contact address:
Dupont Far Eastern Petrochemicals Ltd.,
No 47 Ching Chien 4th Rd., Kuan Yin Industrial Park, Taoyuan, Taiwan.
TEL : (886) 3 483-8855

Information in this publication is believed to be accurate and is given in good faith, but it is for the Customer to satisfy itself of the suitability for its own particular purpose. Accordingly , Dupont gives no warranty as to the fitness of the Product for any particular purpose and any implied warranty or condition (statutory or otherwise) is excluded except to the extent that such exclusion is prevented by law. Freedom under Patent, Copyright and Designs cannot be assumed.

Any trade marks herein identified and the Dupont oval are trade marks of companies within the Dupont Corp.

The following sections contain revisions or new statements: 1,3,5,6,8,9,11,12,15,16

  GLOSSARY

OES :

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Occupational Exposure Standard(UK HSE EH40)

MEL :

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Maximum Exposure Limit(UK HSE EH40)

COM :

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The company aims to control exposure in its workplace to tis limit

TLV :

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The company aims to control exposure in its workplace to the ACGIH limit

TLV-C :

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The company aims to control exposure in its workplace to the ACGIH Ceiling limit

MAK :

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The company aims to control exposure in its workplace to the German limit

Sk :

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Can be absorbed through skin

Sen :

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Capable of causing respiratory sensitisation

 
 
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© Copyright 2004  Oriental Petrochemical (Taiwan) Co., Ltd. All rights reserved.