MATERIAL SAFETY DATA SHEET
MSDS 0261

=============================================================================
            Section 1 -- PRODUCT AND COMPANY IDENTIFICATION                      
-----------------------------------------------------------------------------
                                                           HMIS CODES
PRODUCT NAME                                            Health            1
   Coil Boil                                            Flammability      0
                                                        Reactivity        0
PRODUCT CODES                                           PPI               B
   68702
CHEMICAL FAMILY:
   Inorganic
USE
   Boiler Water Treatment 
MANUFACTURER'S NAME                          EMERGENCY TELEPHONE NO.
   The RectorSeal Corporation                 Chemtrec 24 Hours
   2601 Spenwick Drive                        (800) 424-9300 
   Houston, Texas  77055  USA                         
DATE OF PREPARATION                          TECHNICAL SERVICE TELEPHONE NO. 
   October 2, 2002                            (800) 231-3345
=============================================================================
           Section 2 -- COMPOSITION/INFORMATION ON INGREDIENTS
-----------------------------------------------------------------------------
% by WT        CAS No.  INGREDIENT             UNITS          
  87.72     68915-31-1  Sodium Phosphate 
                             ACGIH TLV     N/D
                             OSHA  PEL     N/D
=============================================================================
           Section 3 -- HAZARDS IDENTIFICATION
-----------------------------------------------------------------------------
SUMMARY OF ACUTE HAZARDS
   Repeated inhalation may cause respiratory irritation. Avoid inhaling 
powder.
ROUTE OF EXPOSURE, SIGNS AND SYMPTOMS
INHALATION
   Dust may cause irritation to lungs and respiratory tract.  Avoid inhaling 
powder.	
EYE CONTACT
   Contact may cause eye irritation.
SKIN CONTACT
   None known.
INGESTION
   May cause irritation of the digestive tract.
SUMMARY OF CHRONIC HAZARDS
   None known.
MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE
   Individuals with pre-existing or chronic diseases of the eyes and 
respiratory system may have increased susceptibility to excessive exposure.
=============================================================================
           Section 4 -- FIRST AID MEASURES
-----------------------------------------------------------------------------
   If INHALED:     Remove to fresh air; administer oxygen, or artificial 
                   respiration if needed.  Seek immediate medical attention.
   If on SKIN:     Wash with soap and water.  
   If in EYES:     Immediately flush with large amounts of water.  If 
                   irritation occurs, seek medical attention.
   If SWALLOWED:   If swallowed, call a physician immediately.  Only induce 
                   vomiting at the instruction of a physician.  Never give 
                   anything by mouth to an unconscious person.
=============================================================================
           Section 5 -- FIRE FIGHTING MEASURES
-----------------------------------------------------------------------------
FLASH POINT                         LEL      UEL
    None                            N/A      N/A
EXTINGUSING MEDIA
    Non-combustible.  Use agents appropriate for surrounding fires.
SPECIAL FIRE FIGHTING PROCEDURES:  Wear self-contained breathing apparatus 
   (SCBA) and other protective clothing.  
UNUSUAL FIRE AND EXPLOSION HAZARDS:  None known. 
=============================================================================
           Section 6 -- ACCIDENTAL RELEASE MEASURES
-----------------------------------------------------------------------------
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED:  Sweep up to
prevent footing hazard.  
=============================================================================
           Section 7 -- HANDLING AND STORAGE
-----------------------------------------------------------------------------
PRECAUTIONS TO BE TAKEN IN HANDLING AND STORING:  Store in dry place.
OTHER PRECAUTIONS: KEEP OUT OF REACH OF CHILDREN.
=============================================================================
           Section 8 -- EXPOSURE CONTROLS/PERSONAL PROTECTION
-----------------------------------------------------------------------------
RESPIRATORY PROTECTION (SPECIFY TYPE):  None required.
VENTILATION - LOCAL EXHAUST:  N/A
SPECIAL:  N/A
MECHANICAL (GENERAL):  N/A
OTHER:  N/A
PROTECTIVE GLOVES:  N/A                           
EYE PROTECTION:  Safety glasses (ANSI Z-87.1 or equivalent)
OTHER PROTECTIVE CLOTHING OR EQUIPMENT:  Coveralls recommended.
WORK/HYGIENIC PRACTICES:  Where use can result in skin contact, wash exposed
   areas thoroughly before eating, drinking, smoking, or leaving work area. 
   Launder contaminated clothing before reuse.
=============================================================================
           Section 9 -- PHYSICAL AND CHEMICAL PROPERTIES
-----------------------------------------------------------------------------
BOILING POINT:                         N/A 
SPECIFIC GRAVITY (H20 = 1):            Solid
VAPOR PRESSURE (mm Hg):                N/A
MELTING POINT:                         N/A
VAPOR DENSITY (AIR = 1):               N/A
EVAPORATION RATE (ETHYL ACETATE = 1):  N/A
APPEARANCE/ODOR:                       Powder / Mild Odor 
SOLUBILITY IN WATER:                   Insoluble 
=============================================================================
           Section 10 -- STABILITY AND REACTIVITY 
-----------------------------------------------------------------------------
STABILITY:  Stable
CONDITIONS TO AVOID:  None known.  
INCOMPATIBILITY (MATERIALS TO AVOID):  None known.  
HAZARDOUS DECOMPOSITION PRODUCTS:  None known.  
HAZARDOUS POLYMERIZATION:  Will not occur.
=============================================================================
           Section 11 -- TOXICOLOGY INFORMATION
-----------------------------------------------------------------------------
CHRONIC HEALTH HAZARDS
   No ingredient in this product is an IARC, NTP or OSHA listed carcinogen.
-----------------------------------------------------------------------------
TOXICOLOGY DATA 
Ingredient Name
-----------------------------------------------------------------------------
   Sodium Phosphate 
                  Oral-Rat LD50:N/D
                  Inhalation-Rat LC50:N/D
=============================================================================
           Section 12 -- Ecological Information
-----------------------------------------------------------------------------
ECOLOGICAL DATA 
Ingredient Name
-----------------------------------------------------------------------------
   Sodium Phosphate 
                  Food Chain Concentration Potential      N/D
                  WATERFOWL TOXICITY                      N/D
                  BOD                                     N/D
                  AQUATIC TOXICITY                        N/D
=============================================================================
           Section 13 -- DISPOSAL CONSIDERATIONS
-----------------------------------------------------------------------------
Waste Classification:  Non-regulated solid waste
Disposal Method:       Approved landfill
Waste from this product is not considered hazardous as defined under the 
  Resource Conservation and Recovery Act (RCRA) 40 CFR 261.  Dispose of in
  accordance with Federal, State, and Local regulation regarding pollution.
=============================================================================
           Section 14 -- TRANSPORTATION INFORMATION
-----------------------------------------------------------------------------
DOT:              Non-Regulated 
OCEAN (IMDG):     Non-Regulated
AIR (IATA):       Non-Regulated
WHMIS (CANADA):   Non-Regulated
=============================================================================
           Section 15 -- REGULATORY INFORMATION
-----------------------------------------------------------------------------
REGULATORY DATA
Ingredient Name
-----------------------------------------------------------------------------
  Sodium Phosphate 
                  SARA 313          N/A
                  TSCA Inventory    Yes
                  CERCLA RQ         N/A
                  RCRA Code         N/A
=============================================================================
           Section 16 -- OTHER INFORMATION
-----------------------------------------------------------------------------
   This document is prepared pursuant to the OSHA Hazard Communication 
Standard (29 CFR 1910.1200).  The information herein is given in good faith,
but no warranty, expressed or implied is made.  Consult RectorSeal for further
information:  (713) 263-8001