MATERIAL SAFETY DATA SHEETS
MANUFACTURER: XENTEX® CHEMICAL INDUSTRIES INC. 
              P.O.B. 220 STREETSVILLE                        --------------
              MISSISSAUGA, ONTARIO                           XENTEX® 610
              CANADA  L5M 2B8                                --------------


MSDS NUMBER: 0096
DATE OF MSDS: JANUARY 3, 1997
EMERGENCY TELEPHONE NUMBERS:  905-826-8566  ( 24 - HOURS )
                              905-826-2999  ( BUSINESS HOURS E.S.T. )

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                        SECTION 1 - PRODUCT IDENTIFICATION
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PRODUCT NAME:  XENTEX® 610             PRODUCT USE: SCALE REMOVER / DESCALER

CHEMICAL DESCRIPTION: MIXTURE       FORMULA: NA                    SYNONYMS: NA

® IS A REGISTERED TRADE MARK OF XENTEX® CHEMICAL INDUSTRIES INC.

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                        SECTION 2 - HAZARDOUS INGREDIENTS
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CHEMICAL IDENTITY     CAS  NUMBER     %  Weight     OSHA / PEL      ACGIH / TLV

Sulfamic Acid         5329-14-6       60  Minimum       N/E             N/E
 
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                            SECTION 3 - PHYSICAL DATA
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BOILING POINT :  209 deg C ( 408 deg F ) AT 760 mm Hg

SPECIFIC GRAVITY :  2.1              

VAPOR DENSITY : NA                                 %  VOLATILE  BY VOLUME :  0

APPEARANCE AND ODOR : WHITE CRYSTALLINE POWDER, ODORLESS

FREEZING POINT:  NA

VAPOUR PRESURE ( mm Hg  ): NA                     SOLUBILITY IN WATER :  > 10%

EVAPORATION RATE : NA                               pH : 1.2  ( 1%  SOLUTION )

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                       SECTION 4 - FIRE AND EXPLOSION HAZARD
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FLASH POINT ( CLOSED CUP ) :  NA

FLAMMABLE LIMITS IN AIR ( LFL/UFL) : NA 

EXTINGUISHING MEDIA : SHOULD BE APPROPRIATE FOR SURROUNDING FIRE.
                 
SPECIAL FIRE FIGHTING PROCEDURE : FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE
                                  EQUIPMENT AND SELF-CONTAINED BREATHING
                                  APPARATUS WITH FULL FACEPIECE  OPERATED IN
                                  POSITIVE PRESSURE MODE. REMOVE CONTAINERS
                                  FROM FIRE AREA IF IT CAN BE DONE WITHOUT
                                  RISK. USE WATER TO KEEP FIRE-EXPOSED CON-
                                  TAINERS COOL.

UNUSUAL FIRE AND EXPLOSION HAZARDS : CLOSED CONTAINERS EXPOSED TO HEAT MAY
                                     EXPLODE.
                                     NOTE: DECOMPOSES AT 150 deg C (302 deg F) 

AUTOIGNITION TEMPERATURE : NA

TDG FLAMMABILITY CLASSIFICATION : NOT FLAMMABLE   

TOXIC  COMBUSTION GASES : AMMONIA, OXIDES OF NITROGEN AND SULFUR

SENSITIVITY TO MECHANICAL IMPACT : NONE IDENTIFIED

SENSITIVITY TO STATIC DISCHARGE : NONE IDENTIFIED

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                           SECTION 5 - HEALTH HAZARD DATA
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THRESHOLD LIMIT VALUE ( TLV / TWA ) : N/E ( NOT ESTABLISHED )
SHORT TERM EXPOSURE LIMIT ( STEL ) : N/E
PERMISSIBLE EXPOSURE LIMIT ( PEL) : N/E

ORAL RAT  LD 50 ( mg / Kg )
FOR PRODUCT (WHMIS ) : > 3000                         FOR SULFAMIC ACID : 3160

CARCINOGENICITY : NONE IDENTIFIED
NTP: NO              IARC: NO             Z  LIST: NO             OSHA REG: NO

TERATOGENICITY / MUTAGENICITY / REPRODUCTIVE TOXICITY : NONE IDENTIFIED

PRIMARY ROUTES OF ENTRY : EYE CONTACT, SKIN CONTACT, INHALATION, INGESTION.
         
ACUTE EFFECTS OF OVEREXPOSURE 
  
INHALATION OF PRODUCT DUST: IRRITATION OF UPPER RESPIRATORY TRACT
INGESTION : SEVERE BURNS TO MOUTH, THROAT, AND STOMACH. GASTROINTESTINAL PAIN.
SKIN CONTACT : SEVERE IRRITATION OR BURNS.
EYE CONTACT : SEVERE IRRITATION OR BURNS.
SKIN ABSORPTION : NONE IDENTIFIED.

CHRONIC EFFECTS OF OVEREXPOSURE :  NONE IDENTIFIED

TARGET ORGANS :  EYES, SKIN, MUCOUS MEMBRANES

OTHER HEALTH HAZARDS  

MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE : DAMAGED SKIN


EMERGENCY AND FIRST AID PROCEDURES

INGESTION : CALL A PHYSICIAN.IF SWALLOWED, DO NOT INDUCE VOMITING.IF CONSCIOUS,
            GIVE WATER, MILK, OR MILK OF MAGNESIA.

INHALATION : IF INHALED, REMOVE TO FRESH AIR. IF NO BREATHING, GIVE ARTIFICIAL
             RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.

EYE CONTACT : IN CASE OF EYE CONTACT, IMMEDIATELY FLUSH EYES WITH PLENTY OF
              WATER FOR  30 MINUTES ( AT LEAST 15 MINUTES ) . IF IRRITATION
              PERSISTS GET MEDICAL ATTENTION.

SKIN CONTACT : IMMEDIATELY FLUSH SKIN WITH PLENTY OF WATER FOR AT LEAST 15 
               MINUTES WHILE REMOVING  CONTAMINATED CLOTHING AND SHOES. 
               WASH CLOTHING BEFORE RE-USE.

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                            SECTION 6 - REACTIVITY DATA
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STABILITY : STABLE

CONDITIONS TO AVOID : TEMPERATURES >  150 C ( 302 F)

HAZARDOUS POLYMERIZATION : NON IDENTIFIED             

DECOMPOSITION PRODUCTS : AMMONIA, OXIDES OF NITROGEN AND SULFUR

INCOMPATIBLES WITH SULFAMIC ACID : BASIC SALTS AND HYDROXIDES,NITROUS AND
                                   NITRIC ACIDS, CHLORINE, BROMINE, CHLORATES,
                                   HYPOCHLOROUS ACID, THIONYL CHLORIDE, AMMONIA,
                                   AND ITS DERIVATIVES, HYPOCHLORITES, CYANIDES,
                                   SULFIDES, AND CARBONATES.

HYDROLYSIS : CONCENTRATED AQUEOUS SOLUTION OF SULFAMIC ACID MAY HYDROLYZE AT
             HIGH TEMPERATURES TO AMMONIUM BISULFATE, RELEASING HEAT AND STEAM. 

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                      SECTION 7- SPILL AND DISPOSAL PROCEDURE 
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STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE:

RESTRICT ACCESS TO AREA. WEAR SELF-CONTAINED BREATHING APPARATUS AND FULL PROTEC-
TIVE CLOTHING. WITH A CLEAN SHOVEL, CAREFULLY PLACE MATERIAL INTO A CLEAN, DRY
CONTAINER AND COVER; REMOVE FROM AREA. FLUSH SPILL AREA WITH WATER. NOTIFY THE
APPROPRIATE AUTHORITIES.

DISPOSAL PROCEDURE:

DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL ENVIRONMENTAL
REGULATIONS. CONSIDERATION MAY BE GIVEN TO DISSOLVING  OR MIXING THE MATERIAL
WITH A COMBUSTIBLE SOLVENT FOR BURNING IN A CHEMICAL INCINERATOR WITH AN AFTER-
BURNER AND SCRUBBER.

EPA  HAZARDOUS WASTE NUMBER FOR AMIDOSULFONIC ACID :   D002 ( CORROSIVE WASTE )

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                   SECTION 8 - INDUSTRIAL PROTECTIVE EQUIPMENT
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VENTILATION:  USE ADEQUATE GENERAL OR LOCAL EXHAUST VENTILATION TO KEEP FUME OR 
              DUST LEVELS AS LOW AS POSSIBLE.

RESPIRATORY PROTECTION: IF AIRBORNE CONCENTRATION IS HIGH, A NIOSH/MSHA APPROV-
                        ED DUST/MIST RESPIRATOR IS RECOMMENDED.IF CONCENTRATION 
                        EXCEEDS CAPACITY OF RESPIRATOR, A SELF-CONTAINED BREATH-
                        ING APPARATUS IS ADVISED.

EYE / SKIN PROTECTION : SAFETY GOGGLES, UNIFORM, APRON, RUBBER GLOVES ARE
                        RECOMMENDED.

OTHERS : EYE WASH FOUNTAIN AND SHOWER IN THE AREA OF WORK IS RECOMMENDED.
           
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                   SECTION 9 - STORAGE AND HANDLING PRECAUTIONS
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STORAGE: STORE IN TIGHTLY CLOSED DRY CONTAINER IN COOL, DRY, AND WELL VENTILATED 
         PLACE.  DO NOT STORE IN VICINITY OF LIVE ELECTRIC COMPONENTS OR INCOMPA-
         TIBLE MATERIALS ( SEE SECTION 6 § INCOMPATIBLES WITH SULFAMIC ACID ) .

HANDLING: AVOID PRODUCING CHEMICAL DUST. DO NOT GET IN EYES, ON SKIN, OR ON CLOTH-
          ING. WASH THOROUGHLY AFTER HANDLING. AVOID SPILL ON ELECTRIC COMPONENTS.

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                        SECTION 10 - REGULATORY INFORMATION
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WHMIS: CLASS E ( CORROSIVE ) .

SARA / TITLE III HAZARD CATEGORIES AND LISTS: ACUTE (YES) , CHRONIC (YES),
                                              FLAMMABILITY (NO), PRESSURE (NO),
                                              REACTIVITY (NO), EXTREMELY HAZARD-
                                              OUS SUBSTANCE (NO), CERCLA HAZARD-
                                              OUS SUBSTANCE (NO), SARA 313 TOXIC
                                              CHEMICALS (NO),TSCA INVENTORY (YES).
     
TDG / D.O.T./ I.M.O./ I.C.A.O. : CORROSIVE SOLID, N.O.S.,(SULFAMIC ACID),
                                 CLASS 8, UN 1759, PACKING GROUP III. NOT
                                 HAZARDOUS TO THE ENVIRONMENT, AND NOT A MARINE
                                 POLLUTANT.

DSL / NDSL / TSCA: THE (ALL) CONSTITUENT(S) OF THIS PRODUCT IS (ARE) INCLUDED
                   ON THE DSL/NDSL OF CEPA AND U.S. TSCA INVENTORY.


CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT OF 1986 (PROPOSITION 65):

THIS PRODUCT CONTAINS NONE OF THE SUBSTANCES KNOWN TO THE STATE OF CALIFORNIA
TO CAUSE CANCER  OR REPRODUCTIVE TOXICITY.
 
MICHIGAN CRITICAL MATERIALS REGISTER: THIS PRODUCT DOES NOT CONTAIN ANY
                                      INGREDIENT LISTED ON THE MICHIGAN
                                      CRITICAL MATERIALS REGISTER.
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                     SECTION 11 - PRECAUTIONARY  LABEL WARNING
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XENTEX® SAFETY DATA SYSTEM:

                                 HEALTH                     2       MODERATE
     
                                 FLAMMABILITY               0       NONE

                                 REACTIVITY                 2       MODERATE

                                 CONTACT                    3       MODERATE*

                                 * CORROSIVE TO SOME MATERIALS 


NFPA : HEALTH-2, FLAMMABILITY-0, REACTIVITY-2
 
 0 = Minimal     1 = Slight       2 = Moderate      3 = Serious     4 = Severe


CANADIAN WARNING STATEMENTS:

CORROSIVE! CAUSES SKIN AND EYE BURNS. CAUSES NOSE AND THROAT IRRITATION. HARMFUL
IF SWALLOWED. IF EXPOSED TO DUST: WEAR RESPIRATOR, RUBBER GLOVES, CHEMICAL
GOGGLES, BOOTS, AND PROTECTIVE CLOTHING. USE WITH ADEQUATE VENTILATION.
  
U.S. WARNING STATEMENTS:

CAUSES BURNS. HARMFUL IF SWALLOWED OR INHALED. DO NOT GET IN EYES, ON SKIN, ON
CLOTHING. AVOID BREATHING DUST. KEEP IN TIGHTLY CLOSED CONTAINER. USE WITH
ADEQUATE VENTILATION. WASH THOROUGHLY AFTER HANDLING.

INTERNATIONAL: 
 
IRRITATING TO EYES AND SKIN. IN CASE OF CONTACT WITH EYES, RINSE IMMEDIATELY
WITH PLENTY OF WATER AND SEEK MEDICAL ADVICE. AFTER CONTACT WITH SKIN, WASH
IMMEDIATELY WITH PLENTY OF SOAP AND WATER.  

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                            SECTION 12 - ABBREVIATIONS
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NA = NOT AVAILABLE OR NOT APPLICABLE                      N/E = NOT ESTABLISHED               

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                          SECTION  13 - OTHER  INFORMATION
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THE INFORMATION, DATA, AND REFERENCES CONTAINED HEREIN ARE BELIEVED TO BE CORRECT
BUT DOES NOT PURPORT TO BE ALL-INCLUSIVE AND SHALL BE USED ONLY AS A GUIDE AND
IS NOT PACKAGE SIZE SPECIFIC, NOR SHOULD IT BE TAKEN AS A WARRANTY OR REPRESENTA-
TION. THIS INFORMATION IS OFFERED SOLELY FOR YOUR CONSIDERATION, INVESTIGATION,
AND VERIFICATION. ANY USE OF THE INFORMATION MUST BE DETERMINED BY THE USER TO
BE IN ACCORDANCE WITH APPLICABLE FEDERAL, STATE, AND LOCAL LAWS AND REGULATIONS.
NOTHING HEREIN IS TO BE CONSTRUED AS RECOMMENDING ANY PRACTICE IN VIOLATION OF
ANY PATENT OR IN VIOLATION OF ANY LAW OR REGULATION. IT IS THE USER'S RESPONS-
IBILITY TO DETERMINE FOR HERSELF / HIMSELF THE SUITABILITY OF THIS PRODUCT FOR
A SPECIFIC PURPOSE AND TO ADOPT SUCH SAFETY PRECAUTION AS MAY BE NECESSARY. WE
MAKE NO WARRANTY AS TO THE RESULTS TO BE OBTAINED IN USING ANY OF OUR PRODUCTS.
SINCE ALL CONSEQUENCES OF USING AND HANDLING THIS PRODUCT ARE NOT KNOWN TO US,
AND CONDITIONS OF USE AND HANDLING ARE NOT UNDER OUR CONTROL, WE MUST NECESSARI-
LY DISCLAIM ALL LIABILITY WITH RESPECT TO THE USE, APPLICATION, STORAGE, AND
TRANSPORTATION OF THIS PRODUCT. XENTEX® SHALL NOT BE HELD LIABLE FOR ANY
DAMAGE RESULTING FROM HANDLING OR FROM CONTACT WITH THIS PRODUCT. SEE  THE
PRODUCT BULLETIN, PRODUCT LABEL, THE REVERSE SIDE OF INVOICE OR PACKING SLIP,
AND THE  CUSTOMER AGREEMENT FOR ADDITIONAL TERMS AND CONDITIONS OF SALE.
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