Material Safety Data Sheet

                      p-tert-Butylbenzoic acid, 99+%

ACC# 09293

  Section 1 - Chemical Product and Company Identification

MSDS Name: p-tert-Butylbenzoic acid, 99+%

Catalog Numbers: AC219620000, AC219620500

Synonyms: Benzoic acid, p-tert-butyl-; PTBBA; Benzoic acid, 4-(1,1-dimethylethyl)-

; p-tert-Butyl benzoic acid

Company Identification:

          Acros Organics N.V.

          One Reagent Lane

          Fair Lawn, NJ 07410

For information in North America, call: 800-ACROS-01

For emergencies in the US, call CHEMTREC: 800-424-9300



      Section 2 - Composition, Information on Ingredients







     CAS#                  Chemical Name                  Percent      EINECS/ELINCS

    98-73-7     4-tert-Butylbenzoic acid                    99+           202-696-3









                    Section 3 - Hazards Identification







                           EMERGENCY OVERVIEW



Appearance: light yellow flakes. Flash Point: > 80 deg C.

Caution! Harmful if inhaled or swallowed. May cause eye and skin irritation. May

cause respiratory and digestive tract irritation. May cause nervous system effects.

May cause liver and kidney damage. The toxicological properties of this material

have not been fully investigated. Reproductively active.

Target Organs: Kidneys, liver, respiratory system, nervous system, male

reproductive system.





Potential Health Effects

Eye: May cause eye irritation.

Skin: May cause skin irritation.

Ingestion: Harmful if swallowed. May cause irritation of the digestive tract. The

toxicological properties of this substance have not been fully investigated. May

produce nervous system disturbances.

Inhalation: May cause respiratory tract irritation. The toxicological properties of this

substance have not been fully investigated. Harmful if inhaled.

Chronic: May cause liver and kidney damage. May cause adverse reproductive

effects.





                       Section 4 - First Aid Measures







Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the

upper and lower eyelids. Get medical aid.

Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while

removing contaminated clothing and shoes. Wash clothing before reuse.

Ingestion: Never give anything by mouth to an unconscious person. Get medical aid

immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink

2-4 cupfuls of milk or water.

Inhalation: Get medical aid immediately. Remove from exposure and move to fresh

air immediately. If not breathing, give artificial respiration. If breathing is difficult,

give oxygen.

Notes to Physician: Treat symptomatically and supportively.





                   Section 5 - Fire Fighting Measures







General Information: As in any fire, wear a self-contained breathing apparatus in

pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.

During a fire, irritating and highly toxic gases may be generated by thermal

decomposition or combustion. This material in sufficient quantity and reduced

particle size is capable of creating a dust explosion.

Extinguishing Media: Use agent most appropriate to extinguish fire. Use water

spray, dry chemical, carbon dioxide, or appropriate foam.

Flash Point: > 80 deg C (> 176.00 deg F)

Autoignition Temperature: Not applicable.

Explosion Limits, Lower:Not available.

Upper: Not available.

NFPA Rating: (estimated) Health: 1; Flammability: 1; Instability: 0





               Section 6 - Accidental Release Measures







General Information: Use proper personal protective equipment as indicated in

Section 8.

Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal

container. Clean up spills immediately, observing precautions in the Protective

Equipment section. Avoid generating dusty conditions. Provide ventilation.

                       Section 7 - Handling and Storage







Handling: Wash thoroughly after handling. Remove contaminated clothing and wash

before reuse. Avoid contact with eyes, skin, and clothing. Do not breathe dust, mist,

or vapor. Keep container tightly closed. Do not ingest or inhale. Use only in a

chemical fume hood.

Storage: Keep container closed when not in use. Store in a tightly closed container.

Store in a cool, dry, well-ventilated area away from incompatible substances.





       Section 8 - Exposure Controls, Personal Protection







Engineering Controls: Facilities storing or utilizing this material should be equipped

with an eyewash facility and a safety shower. Use only under a chemical fume hood.

Exposure Limits



  Chemical Name                 ACGIH             NIOSH           OSHA - Final PELs

 4-tert-Butylbenzoic

                        none listed             none listed           none listed

         acid







OSHA Vacated PELs: 4-tert-Butylbenzoic acid: No OSHA Vacated PELs are listed for

this chemical.

Personal Protective Equipment

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as

described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or

European Standard EN166.

Skin: Wear appropriate protective gloves to prevent skin exposure.

Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134

and ANSI Z88.2 requirements or European Standard EN 149 must be followed

whenever workplace conditions warrant respirator use.





           Section 9 - Physical and Chemical Properties







Physical State: Flakes

Appearance: light yellow

Odor: None reported.

pH: Not available.

Vapor Pressure: Not available.

Vapor Density: Not available.

Evaporation Rate:Not available.

Viscosity: Not available.

Boiling Point: Not available.

Freezing/Melting Point:165.00 - 167.00 deg C

Decomposition Temperature:Not available.

Solubility: Insoluble.

Specific Gravity/Density:Not available.

Molecular Formula:C11H14O2

Molecular Weight:178.23





                 Section 10 - Stability and Reactivity







Chemical Stability: Stable under normal temperatures and pressures.

Conditions to Avoid: Incompatible materials, dust generation, excess heat, strong

oxidants.

Incompatibilities with Other Materials: Strong oxidizing agents, strong bases.

Hazardous Decomposition Products: Carbon monoxide, irritating and toxic fumes

and gases, carbon dioxide.

Hazardous Polymerization: Has not been reported.





               Section 11 - Toxicological Information







RTECS#:

CAS# 98-73-7: DG4708000

LD50/LC50:

CAS# 98-73-7:

   Draize test, rabbit, eye: 100 mg Mild;

   Inhalation, rat: LC50 = >1900 mg/m3/4H;

   Oral, mouse: LD50 = 568 mg/kg;

   Oral, rat: LD50 = 473 mg/kg;

   Skin, rabbit: LD50 = >900 mg/kg;

   Skin, rat: LD50 = 300 mg/kg;

.



Carcinogenicity:

CAS# 98-73-7: Not listed by ACGIH, IARC, NTP, or CA Prop 65.



Epidemiology: No information found

Teratogenicity: No information found

Reproductive Effects: Inhalation, rat: TCLo = 106 mg/m3/6H (male 7 day(s) pre-

mating)Paternal Effects - testes, epididymis, sperm duct.; Inhalation, rat: TCLo =

12500 ug/m3/6H (male 7 day(s) pre-mating) Paternal Effects - spermatogenesis

(incl. genetic material, sperm morphology, motility, and count).

Mutagenicity: No information found

Neurotoxicity: No information found

Other Studies:





                 Section 12 - Ecological Information







Ecotoxicity: Fish: Goldfish: LC50 = 33 mg/L; 96 Hr; Unspecified





                 Section 13 - Disposal Considerations





Chemical waste generators must determine whether a discarded chemical is

classified as a hazardous waste. US EPA guidelines for the classification

determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must

consult state and local hazardous waste regulations to ensure complete and accurate

classification.

RCRA P-Series: None listed.

RCRA U-Series: None listed.





                  Section 14 - Transport Information







                             US DOT                          Canada TDG

Shipping Name:    TOXIC SOLIDS, ORGANIC, N.O.S.         No information available.

 Hazard Class:                 6.1

 UN Number:                  UN2811

Packing Group:                 III









                 Section 15 - Regulatory Information





US FEDERAL



TSCA

   CAS# 98-73-7 is listed on the TSCA inventory.

Health & Safety Reporting List

   CAS# 98-73-7: Effective 6/25/86, Sunset 12/19/95

Chemical Test Rules

   None of the chemicals in this product are under a Chemical Test Rule.

Section 12b

   None of the chemicals are listed under TSCA Section 12b.

TSCA Significant New Use Rule

   None of the chemicals in this material have a SNUR under TSCA.

CERCLA Hazardous Substances and corresponding RQs

   None of the chemicals in this material have an RQ.

SARA Section 302 Extremely Hazardous Substances

   None of the chemicals in this product have a TPQ.

Section 313      No chemicals are reportable under Section 313.

Clean Air Act:

   This material does not contain any hazardous air pollutants.

   This material does not contain any Class 1 Ozone depletors.

   This material does not contain any Class 2 Ozone depletors.

Clean Water Act:

   None of the chemicals in this product are listed as Hazardous Substances under

the CWA.

   None of the chemicals in this product are listed as Priority Pollutants under the

CWA.

   None of the chemicals in this product are listed as Toxic Pollutants under the

CWA.

OSHA:

   None of the chemicals in this product are considered highly hazardous by OSHA.

STATE

   CAS# 98-73-7 is not present on state lists from CA, PA, MN, MA, FL, or NJ.



California Prop 65



California No Significant Risk Level: None of the chemicals in this product are listed.



European/International Regulations

European Labeling in Accordance with EC Directives

Hazard Symbols:

   XN

Risk Phrases:

   R 22 Harmful if swallowed.



Safety Phrases:

   S 22 Do not breathe dust.

   S 24/25 Avoid contact with skin and eyes.

   S 37 Wear suitable gloves.

   S 45 In case of accident or if you feel unwell, seek medical advice

   immediately (show the label where possible).

   S 28A After contact with skin, wash immediately with plenty of water

   .



WGK (Water Danger/Protection)

   CAS# 98-73-7: 1

Canada - DSL/NDSL

   CAS# 98-73-7 is listed on Canada's DSL List.

Canada - WHMIS

   This product has a WHMIS classification of D1A, D2A.

This product has been classified in accordance with the hazard criteria of the

Controlled Products Regulations and the MSDS contains all of the information

required by those regulations.

Canadian Ingredient Disclosure List

   CAS# 98-73-7 is listed on the Canadian Ingredient Disclosure List.





                         Section 16 - Additional Information





MSDS Creation Date: 5/21/1999

Revision #4 Date: 3/15/2007

The information above is believed to be accurate and represents the best information currently available to us.

However, we make no warranty of merchantability or any other warranty, express or implied, with respect to

such information, and we assume no liability resulting from its use. Users should make their own investigations to

determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any

claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential

or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.