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MSDS for   SODIUM CARBONATE, ANHYDROUS                    Page  1
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   1 - PRODUCT IDENTIFICATION
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PRODUCT NAME:     SODIUM CARBONATE, ANHYDROUS
FORMULA:          NA2CO3
FORMULA WT:         105.99
CAS NO.:            497-19-8
NIOSH/RTECS NO.:  VZ4050000
COMMON SYNONYMS:  SODA ASH;  DISODIUM CARBONATE
PRODUCT CODES:    5151,4502,5134,4923,5605,5198,3605,5154,3604,5179,3602
  EFFECTIVE: 11/24/86     
  REVISION #02   

                            PRECAUTIONARY LABELLING
BAKER SAF-T-DATA(TM) SYSTEM

                      HEALTH        -  1  SLIGHT
                      FLAMMABILITY  -  0  NONE
                      REACTIVITY    -  1  SLIGHT
                      CONTACT       -  1  SLIGHT
HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD).

LABORATORY PROTECTIVE EQUIPMENT

SAFETY GLASSES; LAB COAT

PRECAUTIONARY LABEL STATEMENTS

                                   CAUTION
                             MAY CAUSE IRRITATION
                          MAY BE HARMFUL IF SWALLOWED
DURING USE AVOID CONTACT WITH EYES, SKIN, CLOTHING.  WASH THOROUGHLY AFTER
HANDLING.  WHEN NOT IN USE KEEP IN TIGHTLY CLOSED CONTAINER.

SAF-T-DATA(TM) STORAGE COLOR CODE:     ORANGE (GENERAL STORAGE)

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   2 - HAZARDOUS COMPONENTS
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                          COMPONENT                         %      CAS NO.

SODIUM CARBONATE, ANHYDROUS                                     00497-19-8

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   3 - PHYSICAL DATA
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BOILING POINT:    N/A                         VAPOR PRESSURE(MM HG): N/A

MELTING POINT:      851 C (  1564 F)          VAPOR DENSITY(AIR=1):  N/A

SPECIFIC GRAVITY:  2.53                       EVAPORATION RATE:      N/A
   (H2O=1)                                       (BUTYL ACETATE=1)

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MSDS for   SODIUM CARBONATE, ANHYDROUS                    Page  2
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SOLUBILITY(H2O):     APPRECIABLE (MORE THAN 10 %)  % VOLATILES BY VOLUME: 0

APPEARANCE & ODOR:  ODORLESS GRAYISH WHITE POWDER.

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   4 - FIRE AND EXPLOSION HAZARD DATA
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FLASH POINT (CLOSED CUP   N/A

FLAMMABLE LIMITS:  UPPER - N/A  %       LOWER - N/A  %

FIRE EXTINGUISHING MEDIA
  USE EXTINGUISHING MEDIA APPROPRIATE FOR SURROUNDING FIRE.

SPECIAL FIRE-FIGHTING PROCEDURES
  FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED
  BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE MODE.

TOXIC GASES PRODUCED
  CARBON MONOXIDE, CARBON DIOXIDE, OXIDES

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   5 - HEALTH HAZARD DATA
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TOXICITY:   LD50 (IPR-MOUSE)(MG/KG)         -  117

CARCINOGENICITY:  NTP: NO     IARC: NO     Z LIST: NO     OSHA REG: NO

EFFECTS OF OVEREXPOSURE
  INHALATION OF DUST MAY CAUSE IRRITATION TO UPPER RESPIRATORY TRACT.
  CONTACT MAY CAUSE IRRITATION OF SKIN, EYES, AND MUCOUS MEMBRANES.
  INGESTION OF LARGE QUANTITIES MAY CAUSE GASTROINTESTINAL IRRITATION.
  INGESTION OF LARGE QUANTITIES MAY CAUSE VOMITING, DIARRHEA AND NAUSEA.

TARGET ORGANS
  NONE IDENTIFIED

MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE
  NONE IDENTIFIED

ROUTES OF ENTRY
  INHALATION, INGESTION, SKIN CONTACT, EYE CONTACT

EMERGENCY AND FIRST AID PROCEDURES
  INGESTION:     IF SWALLOWED AND THE PERSON IS CONSCIOUS, IMMEDIATELY GIVE
                    LARGE AMOUNTS OF WATER.  GET MEDICAL ATTENTION.
  INHALATION:    IF A PERSON BREATHES IN LARGE AMOUNTS, MOVE THE EXPOSED
                    PERSON TO FRESH AIR.  GET MEDICAL ATTENTION.
  EYE CONTACT:   IMMEDIATELY FLUSH WITH PLENTY OF WATER FOR AT LEAST 15
                    MINUTES.  GET MEDICAL ATTENTION.
  SKIN CONTACT:  IMMEDIATELY WASH WITH PLENTY OF SOAP AND WATER FOR AT LEAST
                    15 MINUTES.

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   6 - REACTIVITY DATA
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MSDS for   SODIUM CARBONATE, ANHYDROUS                    Page  3
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STABILITY:  STABLE                 HAZARDOUS POLYMERIZATION:  WILL NOT OCCUR

CONDITIONS TO AVOID:    HUMIDITY

INCOMPATIBLES:         STRONG ACIDS, ALUMINUM, FLUORINE, OXIDES OF PHOSPHORUS,
                        LITHIUM

DECOMPOSITION PRODUCTS: CARBON MONOXIDE, CARBON DIOXIDE

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   7 - SPILL AND DISPOSAL PROCEDURES
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STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE
  WEAR SUITABLE PROTECTIVE CLOTHING.  CAREFULLY SWEEP UP AND REMOVE.

DISPOSAL PROCEDURE
  DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL
  ENVIRONMENTAL REGULATIONS.

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   8 - 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:  NONE REQUIRED WHERE ADEQUATE VENTILATION
                         CONDITIONS EXIST.  IF AIRBORNE CONCENTRATION IS
                         HIGH, USE AN APPROPRIATE RESPIRATOR OR DUST MASK.

EYE/SKIN PROTECTION:     SAFETY GLASSES WITH SIDESHIELDS, RUBBER GLOVES ARE
                         RECOMMENDED.

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   9 - STORAGE AND HANDLING PRECAUTIONS
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SAF-T-DATA(TM) STORAGE COLOR CODE:     ORANGE (GENERAL STORAGE)

SPECIAL PRECAUTIONS
  KEEP CONTAINER TIGHTLY CLOSED.  SUITABLE FOR ANY GENERAL CHEMICAL STORAGE
  AREA.

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  10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION
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DOMESTIC (D.O.T.)

PROPER SHIPPING NAME     CHEMICALS, N.O.S. (NON-REGULATED)

INTERNATIONAL (I.M.O.)

PROPER SHIPPING NAME     CHEMICALS, N.O.S. (NON-REGULATED)