MATERIAL SAFETY DATA SHEET

                                                   Revised: 15/05/08

ETHEPHON                                           Replaces: 10/07/07

CAROLINA BIOLOGICAL                                Printed: 20/05/08





1. PRODUCT DESCRIPTION

Product Name:      Ethephon

Product Code(s):   20-7552, 20-7553, 20-7805, 20-7810, 20-7815

Size:              1 oz, 4 oz

Chemical Name:     2-Chloroethyl Phosphonic Acid

CAS Number:        16672-87-0

Formula:           C2H6ClO3P

Synonyms:          2-Chloroethanephosphonic acid

Distributor:       Carolina Biological Supply Company

                   2700 York Road

                   Burlington, NC 27215

Chemical Information: 800-227-1150 (8am-5pm (ET) M-F)

Chemtrec (Transportation Spill Response 24 hours): 800-424-9300

2. COMPOSITION/INFORMATION ON INGREDIENTS

Principle Hazardous Components: 2-Chloroethyl Phosphonic acid (CAS#

16672-87-

0) 21.6%

TLV and PEL units: None established

3. HAZARD IDENTIFICATION

Emergency Overview:

Potential Health Effects:

Eyes: May cause irritation.

Skin: May cause irritation.

Ingestion: May cause gastrointestinal discomfort.

Inhalation: May cause irritation to respiratory tract.

4. FIRST AID MEASURES

Emergency and First Aid Procedures:

Eyes - Flush with water for at least 15 minutes, raising and lowering

eyelids occasionally. Get medical attention if irritation persists.

Skin - Thoroughly wash exposed area for at least 15 minutes. Remove

contaminated clothing. Launder contaminated clothing before reuse. Get

medical attention if irritation persists.

Ingestion - Do not induce vomiting. If swallowed, if conscious, give

plenty of water immediately and call a physician or poison control

center. Never give anything by mouth to an unconscious person.

Inhalation - Remove to fresh air. Give oxygen if breathing is

difficult; give artificial respiration if breathing has stopped. Keep

person warm, quiet, and get medical attention.

5. FIREFIGHTING PROCEDURES

Flash Point(Method Used): None

NFPA Rating: None established

Extinguisher Media:

      Use media suitable to extinguish surrounding fire.

Flammable Limits in Air % by Volume: None

Autoignition Temperature: No information available

Special Firefighting Procedures:

Firefighters should wear full protective equipment and NIOSH approved

self-contained breathing apparatus.

Unusual Fire and Explosion Hazards: Thermal decomposition may produce

toxic

gases.

                                Page 1 of 4

                      MATERIAL SAFETY DATA SHEET

                                                   Revised: 15/05/08

ETHEPHON                                           Replaces: 10/07/07

CAROLINA BIOLOGICAL                                Printed: 20/05/08





6. SPILL OR LEAK PROCEDURES

Steps to be Taken in Case Material is Released or Spilled:

     Ventilate area of spill. Eliminate all sources of ignition.

Remove all non-essential personnel from area. Clean-up personnel should

wear proper protective equipment and clothing. Absorb material with

suitable absorbent and containerize for disposal.

7. SPECIAL PRECAUTIONS

Precautions to be Taken in Handling or Storing: Store tightly closed in

a

cool, dry, well ventilated area suitable for storage of acids.

8. SPECIAL PROTECTION INFORMATION

Respiratory Protection(Specify Type):

None needed under normal conditions of use with adequate ventilation.

NIOSH approved equipment should be worn if PELs are exceeded.

Ventilation:

        Local Exhaust: Yes

        Mechanical(General): Yes

        Special: No

        Other: No

Protective Gloves: Rubber

Eye Protection:

     Splash proof chemical safety goggles should be worn at all times.

Other Protective Clothing or Equipment:

     Lab apron, eye wash, and safety shower.

9. PHYSICAL DATA

Molecular Weight:    144.5

Melting Point:       70-72 C (solid)

Boiling Point:       >100

Vapor Pressure:      13.7 mm Hg

Vapor Density(Air=1): <1

Specific Gravity(H2O=1): 1.106 @ 20C

Percent Volatile by Volume: No information available

Evaporation Rate(BuAc=1): <1

Solubility in Water: 100%

Appearance and Odor: Colorless, odorless solution

10. REACTIVITY DATA

Stability: Stable

Conditions to Avoid: No data available

Incompatibility(Materials to Avoid): Bases and strong oxidizing agents

Hazardous Decomposition Products: Fire conditions may produce HCl

fumes.

Hazardous Polymerization: Will not occur

11. TOXICITY DATA

Toxicity Data:  orl-rat LD50: 3400mg/kg

                ihl-rat LC50: mg/m3/4H

Effects of Overexposure:

        Acute: See section 3

        Chronic: No chronic effects data found

Conditions Aggravated by Overexposure: No information found

Target Organs: Digestive tract



                              Page 2 of 4

                      MATERIAL SAFETY DATA SHEET

                                                      Revised: 15/05/08

ETHEPHON                                              Replaces: 10/07/07

CAROLINA BIOLOGICAL                                   Printed: 20/05/08





Primary Route(s) of Entry:   Inhalation, ingestion

12. ECOLOGICAL DATA

EPA Waste Numbers:    None

13. DISPOSAL INFORMATION

Waste Disposal Methods: Dispose in accordance with all applicable

Federal,

State and Local regulations.

Always contact a permitted waste disposer (TSD) to assure compliance.

14. TRANSPORT INFORMATION

Toxic Liquid, Organic, n.o.s., 2-Chloroethyl Phosphonic Acid Solution,

UN2810,

II, Toxic, 6.1

15. REGULATORY INFORMATION

EPA TSCA Status: On TSCA Inventory

Hazard Category for SARA Section 311/312 Reporting:    Acute



                                SARA Sec. 313

                 SARA EHS       Chemicals              CERCLA      RCRA

Product or       Sec. 302       Name Chemical          Sec. 103    Sec.

Components         TPQ          List Category          RQ lbs.

261.33

________________________________________________________________________

_

Chloroethyl-

Phosphoric acid    No          No     No                 No          No

16. ADDITIONAL INFORMATION

The information provided in this Material Safety Data Sheet represents a

compilation of data drawn directly from various sources available to us.

Carolina Biological Supply makes no representation or guarantee as to

the suitability of this information to a particular application of the

substance covered in the Material Safety Data Sheet. Any employer must

carefully assess the applicability of any information contained herein

in regards to the particular use to which the employer puts the

material.

Glossary

ACGIH.......American Conference of Governmental Industrial Hygienists

CAS Number..Chemical Abstracts Service Number

CERCLA......Comprehensive Environmental Response, Compensation, and

Liability Act

DOT.........U.S. Department of Transportation

IARC........International Agency of Research on Cancer

mppcf......million particles per cubic foot

N/A.........Not Available

NTP.........National Toxicology Program

OSHA........Occupational Safety and Health Administration

PEL.........Permissible Exposure Limit

ppm.........parts per million

RCRA........Resource Conservation and Recovery Act

SARA........Superfund Amendments and Reauthorization Act

TLV.........Threshold Limit Value

                               Page 3 of 4

                      MATERIAL SAFETY DATA SHEET

                                               Revised: 15/05/08

ETHEPHON                                       Replaces: 10/07/07

CAROLINA BIOLOGICAL                            Printed: 20/05/08





TSCA........Toxic Substances Control Act









                              Page 4 of 4