
MSDS - CALOMEL

------------------------------------------------------------------------------
   1 - PRODUCT IDENTIFICATION
------------------------------------------------------------------------------

PRODUCT NAME:     CALOMEL
FORMULA:          HGCL
FORMULA WT:         236.04
CAS NO.:          07546-30-7
NIOSH/RTECS NO.:  OV8750000
COMMON SYNONYMS:  MERCUROUS CHLORIDE, MERCURY MONOCHLORIDE
PRODUCT CODES:    1363
  EFFECTIVE: 10/24/86     
  REVISION #02   

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

                      HEALTH        -  3  SEVERE (POISON)
                      FLAMMABILITY  -  0  NONE
                      REACTIVITY    -  0  NONE
                      CONTACT       -  3  SEVERE (LIFE)
HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD).

LABORATORY PROTECTIVE EQUIPMENT

GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES

PRECAUTIONARY LABEL STATEMENTS

                               POISON DANGER
                     MAY BE FATAL IF SWALLOWED OR INHALED
   EXCEPTIONAL HEALTH AND CONTACT HAZARDS - READ MATERIAL SAFETY DATA SHEET
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.

SAF-T-DATA(TM) STORAGE COLOR CODE:     BLUE (HEALTH)

------------------------------------------------------------------------------
   2 - HAZARDOUS COMPONENTS
------------------------------------------------------------------------------

                          COMPONENT                         %      CAS NO.

MERCUROUS CHLORIDE                                       90-100  7546-30-7

------------------------------------------------------------------------------
   3 - PHYSICAL DATA
------------------------------------------------------------------------------

BOILING POINT:      384 C (   723 F)          VAPOR PRESSURE(MM HG): N/A

MELTING POINT:      302 C (   576 F)          VAPOR DENSITY(AIR=1):  N/A

SPECIFIC GRAVITY:  7.15                       EVAPORATION RATE:      N/A
   (H2O=1)                                       (BUTYL ACETATE=1)


SOLUBILITY(H2O):     NEGLIGIBLE (LESS THAN 0.1 %)  % VOLATILES BY VOLUME: 0

APPEARANCE & ODOR:  WHITE POWDER WITH NO ODOR.

------------------------------------------------------------------------------
   4 - FIRE AND EXPLOSION HAZARD DATA
------------------------------------------------------------------------------

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
  HYDROGEN CHLORIDE, MERCURY FUMES

------------------------------------------------------------------------------
   5 - HEALTH HAZARD DATA
------------------------------------------------------------------------------


THRESHOLD LIMIT VALUE (TLV/TWA):   0.1  MG/M3 (       PPM)

TOXICITY:   LD50 (ORAL-RAT)(MG/KG)          -  210

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

EFFECTS OF OVEREXPOSURE
  DUST MAY CAUSE HEADACHE, COUGHING, DIZZINESS OR DIFFICULT BREATHING.
  INHALATION AND INGESTION ARE HARMFUL AND MAY BE FATAL.
  CONTACT WITH SKIN OR EYES MAY CAUSE IRRITATION.
  INGESTION MAY CAUSE NAUSEA AND VOMITING.
  CHRONIC EFFECTS OF MERCURY POISONING INCLUDE A BUILDUP OF THE
  METAL IN THE BRAIN, LIVER AND KIDNEYS.  SYMPTOMS INCLUDE HEADACHE,
  TREMORS, LOOSE TEETH, LOSS OF APPETITE, BLISTERS ON THE SKIN AND
  IMPAIRED MEMORY.

TARGET ORGANS
  EYES, SKIN

MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE
  NONE IDENTIFIED

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

EMERGENCY AND FIRST AID PROCEDURES
  CALL A PHYSICIAN.
  IF SWALLOWED, IF CONSCIOUS, IMMEDIATELY INDUCE VOMITING.
  IF INHALED, REMOVE TO FRESH AIR.  IF NOT BREATHING, GIVE ARTIFICIAL
  RESPIRATION.  IF BREATHING IS DIFFICULT, GIVE OXYGEN.
  IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES OR SKIN WITH PLENTY OF WATER FOR
  AT LEAST 15 MINUTES.

------------------------------------------------------------------------------
   6 - REACTIVITY DATA
------------------------------------------------------------------------------

STABILITY:  STABLE                 HAZARDOUS POLYMERIZATION:  WILL NOT OCCUR

CONDITIONS TO AVOID:    LIGHT

INCOMPATIBLES:         STRONG BASES, CARBONATES, SULFIDES, CYANIDES, ALKALIES,
                        SULFITES, SULFATES, HYDROGEN PEROXIDE, AMMONIA,
                        HYDROGEN BROMIDE, IODINE

DECOMPOSITION PRODUCTS: HYDROGEN CHLORIDE, MERCURY FUMES

------------------------------------------------------------------------------
   7 - SPILL AND DISPOSAL PROCEDURES
------------------------------------------------------------------------------

STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE
  WEAR SELF-CONTAINED BREATHING APPARATUS AND FULL PROTECTIVE CLOTHING.
  WITH CLEAN SHOVEL, CAREFULLY PLACE MATERIAL INTO CLEAN, DRY CONTAINER AND
  COVER; REMOVE FROM AREA.  FLUSH SPILL AREA WITH WATER.

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

EPA HAZARDOUS WASTE NUMBER:          D009 (EP TOXIC WASTE)

------------------------------------------------------------------------------
   8 - PROTECTIVE EQUIPMENT
------------------------------------------------------------------------------

VENTILATION:             USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET
                         TLV REQUIREMENTS.

RESPIRATORY PROTECTION:  NONE REQUIRED WHERE APPROPRIATE VENTILATION
                         CONDITIONS EXIST.  IF THE TLV IS EXCEEDED, A SELF-
                         CONTAINED BREATHING APPARATUS IS ADVISED.

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




------------------------------------------------------------------------------
   9 - STORAGE AND HANDLING PRECAUTIONS
------------------------------------------------------------------------------

SAF-T-DATA(TM) STORAGE COLOR CODE:     BLUE (HEALTH)

SPECIAL PRECAUTIONS
  KEEP PRODUCT OUT OF LIGHT.
  KEEP CONTAINER TIGHTLY CLOSED.  STORE IN SECURE POISON AREA.

------------------------------------------------------------------------------
  10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION
------------------------------------------------------------------------------

DOMESTIC (D.O.T.)

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

INTERNATIONAL (I.M.O.)

PROPER SHIPPING NAME     MERCURY COMPOUNDS, SOLID, N.O.S. (CALOMEL)
HAZARD CLASS             6.1
UN/NA                    UN2025
LABELS                   POISON

