MATERIAL SAFETY DATA SHEET

EM SCIENCE


1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION


Manufacturer.............:         Preparation Date.: 5/20/99
   EM SCIENCE
   A Division of EM Industries     Information Phone Number.: 856-423-6300
   P.O. Box 70                     Hours: Mon. to Fri. 8:30-5
   480 Democrat Road               Chemtrec Emergency Number: 800-424-9300
   Gibbstown, N.J. 08027           Hours: 24 hrs a day

Catalog Number(s):
  1.10762


Product Name:
8-Anilinonapthalene-1-Sulfonic Acid Ammonium Salt
Synonyms:
ANS-NH4
Chemical Family:
Salt
Formula:
C16H16N2O3S
Molecular Weight.:
316.38

2. COMPOSITION / INFORMATION ON INGREDIENTS


       Component                     CAS #       Appr %
____________________________________________________________
8-Anilinonapthalene-1-Sulfonic Acid Ammonium Salt
                                  28836-03-5     100%       

3. HAZARDS IDENTIFICATION


EMERGENCY OVERVIEW
IRRITATING TO SKIN, EYES AND MUCOUS MEMBRANES.

Appearance:
Green, odorless solid

POTENTIAL HEALTH EFFECTS (ACUTE AND CHRONIC)

Symptoms of Exposure:
Irritating on contact with skin, eyes or mucous membranes.

Medical Cond. Aggravated by Exposure:
None indicated

Routes of Entry:
Inhalation, ingestion


Carcinogenicity:
The material is not listed (IARC, NTP, OSHA) as cancer causing
agent.

4. FIRST AID MEASURES


Emergency First Aid:

GET MEDICAL ASSISTANCE FOR ALL CASES OF OVEREXPOSURE.
Skin: Wash thoroughly with soap and water.
Eyes: Immediately flush thoroughly with water for at least 15
minutes.
Inhalation: Remove to fresh air; give artificial respiration if
breathing has stopped.
Ingestion: If conscious, drink water and induce vomiting
immediately as directed by medical personnel. Never give anything
by mouth to an unconscious person.

5. FIRE FIGHTING MEASURES


Flash Point (F): N/A
Flammable Limits LEL (%): N/A
Flammable Limits UEL (%): N/A
Extinguishing Media:

Use water, dry chemical, CO2, or "alcohol" foam.

Fire Fighting Procedures:

Wear self-contained breathing apparatus.

Fire & Explosion Hazards:
Thermal decomposition produces toxic fumes.

6. ACCIDENTAL RELEASE MEASURES


Spill Response:
Evacuate the area of all unnecessary personnel. Wear suitable protective equipment listed under Exposure / Personal Protection. Eliminate any ignition sources until the area is determined to be free from explosion or fire hazards. Contain the release and eliminate its source, if this can be done without risk. Take up and containerize for proper disposal as described under Disposal. Comply with Federal, State, and local regulations on reporting releases. Refer to Regulatory Information for reportable quantity and other regulatory data.

7. HANDLING AND STORAGE


Handling & Storage:
Store in a cool, dry area. Do not get in eyes, on skin, or on clothing. Do not breathe dust.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION


ENGINEERING CONTROLS AND PERSONAL PROTECTIVE EQUIPMENT:
Ventilation, Respiratory Protection, Protective Clothing, Eye Protection:
Material should be handled or transferred in an approved fume hood or with adequate ventilation. Protective gloves should be worn to prevent skin contact (Neoprene or equivalent) Safety glasses with side shields should be worn at all times.

Work/Hygenic Practices:
Wash thoroughly after handling. Do not take internally. Eye wash and safety equipment should be readily available.

EXPOSURE GUIDELINES

OSHA - PEL:
                TWA           STEL             CL
Component   PPM    MG/M3   PPM    MG/M3   PPM    MG/M3  Skin
____________________________________________________________
8-Anilinonapthalene-1-Sulfonic Acid Ammonium Salt
                                                            

ACGIH - TLV:
                TWA           STEL             CL
Component   PPM    MG/M3   PPM    MG/M3   PPM    MG/M3  Skin
____________________________________________________________
8-Anilinonapthalene-1-Sulfonic Acid Ammonium Salt
                                                            

If there are no exposure limit numbers listed in the Exposure Guidelines chart, this indicates that no OSHA or ACGIH exposure limts have been established.

9. PHYSICAL AND CHEMCIAL PROPERTIES


Boiling Point (C 760 mmHg) : N/A
Melting Point (C) : 240-255
Specific Gravity (H20 = 1) : N/A
Vapor Pressure (mm Hg) : N/A
Percent Volatile by vol (%): N/A
Vapor Density (Air = 1) : N/A
Evaporation Rate (BuAc = 1): N/A
Solubility in Water (%) : Soluble
Appearance :
Green, odorless solid

10. STABILITY AND REACTIVITY


Stability: Yes

Hazardous Polymerization:
Does not occur

Hazardous Decomposition:
COx, NOx, SOx

Conditions to Avoid:
Exposure to air, moisture, and light.

Materials To Avoid:
     ( ) Water
     ( ) Acids
     ( ) Bases
     ( ) Corrosives
     ( ) Oxidizers
     (X) Other: strong oxidizers and strong bases

11. TOXICOLOGICAL INFORMATION


Toxicity Data
None established


Toxicological Findings:
None
Cited in Registry of Toxic Effects of Chemical Substances (RTECS)

12. DISPOSAL CONSIDERATIONS


EPA Waste Numbers:        

Treatment:
Material does not have an EPA Waste number and is not a listed waste, however consultation with a permitted waste disposal site (TSD) should be accomplished.
ALWAYS CONTACT A PERMITTED WASTE DISPOSER (TSD) TO ASSURE COMPLIANCE WITH ALL CURRENT LOCAL, STATE AND FEDERAL REGULATIONS.

13. TRANSPORT INFORMATION


DOT Proper Shipping Name:
non-regulated

DOT ID Number :
none

14. REGULATORY INFORMATION


TSCA Statement:
The CAS number of this product is listed on the TSCA Inventory.

                    SARA            SARA         CERCLA
 Component          EHS            EHS TPQ         RQ
                   (302)            (lbs)        (lbs)
____________________________________________________________
8-Anilinonapthalene-1-Sulfonic Acid Ammonium Salt
                                                            

                    OSHA            SARA        DeMinimis
 Component       Floor List         313        for SARA 313
                                                   (%)
____________________________________________________________
8-Anilinonapthalene-1-Sulfonic Acid Ammonium Salt
                                                            

If there is no information listed on the regulatory information chart, this indicates that the chemical is not covered by the specific regulation listed.

15. OTHER INFORMATION


Comments:
None

NFPA Hazard Ratings:
Health          : 1
Flammability    : 0
Reactivity      : 0
Special Hazards : 


Revision History:  5/20/99

    |  = Revised Section

   N/A = Not Available

   N/E = None Established

The statements contained herein are offered for informational purposes only and are based upon technical data that EM Science believes to be accurate. It is intended for use only by persons having the necessary technical skill and at their own discretion and risk. Since conditions and manner of use are outside our control, we make NO WARRANTY, EXPRESS OR IMPLIED, OR MERCHANTABILITY, FITNESS OR OTHERWISE.