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MSDS for SODIUM DICHROMATE, DIHYDRATE Page 1

1 - PRODUCT IDENTIFICATION

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PRODUCT NAME: SODIUM DICHROMATE, DIHYDRATE

FORMULA: NA2CR2O7 2H2O

FORMULA WT: 298.00

CAS NO.: 10588-01-9

NIOSH/RTECS NO.: HX7750000

COMMON SYNONYMS: DICHROMIC ACID, DISODIUM SALT, DIHYDRATE

PRODUCT CODES: 3674,3672

EFFECTIVE: 09/10/86

REVISION #02

PRECAUTIONARY LABELLING

BAKER SAF-T-DATA(TM) SYSTEM

HEALTH - 4 EXTREME (CANCER CAUSING)

FLAMMABILITY - 0 NONE

REACTIVITY - 3 SEVERE (OXIDIZER)

CONTACT - 2 MODERATE

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

CAUTION: CONTAINS CHROMIUM(VI),CANCER HAZARD

CAUSES IRRITATION - MAY CAUSE RASH OR EXTERNAL ULCERS.

STRONG OXIDIZER - CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE

MAY BE FATAL IF ABSORBED THROUGH SKIN - HARMFUL IF INHALED OR SWALLOWED.

KEEP FROM CONTACT WITH CLOTHING AND OTHER COMBUSTIBLE MATERIALS. DO NOT

STORE NEAR COMBUSTIBLE MATERIALS. DO NOT GET IN EYES, ON SKIN, ON CLOTHING.

DO NOT BREATHE DUST. KEEP IN TIGHTLY CLOSED CONTAINER. USE WITH ADEQUATE

VENTILATION. WASH THOROUGHLY AFTER HANDLING. IN CASE OF FIRE, USE WATER

SPRAY, ALCOHOL FOAM, DRY CHEMICAL OR CARBON DIOXIDE. IN CASE OF SPILL,

SWEEP UP AND REMOVE. FLUSH SPILL AREA WITH WATER.

SAF-T-DATA(TM) STORAGE COLOR CODE: YELLOW (REACTIVE)

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2 - HAZARDOUS COMPONENTS

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COMPONENT % CAS NO.

SODIUM DICHROMATE, DIHYDRATE 90-100 10588-01-9

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FOR INFORMATION ONLY; ANHYDROUS FORM 10588-01-9

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MSDS for SODIUM DICHROMATE, DIHYDRATE Page 2

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3 - PHYSICAL DATA

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BOILING POINT: N/A VAPOR PRESSURE(MM HG): N/A

MELTING POINT: 357 C ( 675 F) VAPOR DENSITY(AIR=1): 10.0

SPECIFIC GRAVITY: 2.35 EVAPORATION RATE: N/A

(H2O=1) (BUTYL ACETATE=1)

SOLUBILITY(H2O): COMPLETE (IN ALL PROPORTIONS) % VOLATILES BY VOLUME: 0

APPEARANCE & ODOR: REDDISH TO BRIGHT ORANGE CRYSTALS.

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4 - FIRE AND EXPLOSION HAZARD DATA

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FLASH POINT (CLOSED CUP N/A NFPA 704M RATING: 1-0-1 OXY

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

FIRE EXTINGUISHING MEDIA

USE WATER SPRAY, ALCOHOL FOAM, DRY CHEMICAL OR CARBON DIOXIDE.

SPECIAL FIRE-FIGHTING PROCEDURES

FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED

BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE MODE.

MOVE CONTAINERS FROM FIRE AREA IF IT CAN BE DONE WITHOUT RISK. USE WATER

TO KEEP FIRE-EXPOSED CONTAINERS COOL.

UNUSUAL FIRE & EXPLOSION HAZARDS

STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE.

CLOSED CONTAINERS EXPOSED TO HEAT MAY EXPLODE.

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5 - HEALTH HAZARD DATA

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THIS SUBSTANCE IS LISTED AS AN NTP HUMAN CARCINOGEN AND AND IARC HUMAN

CARCINOGEN (GROUP 1).

THRESHOLD LIMIT VALUE (TLV/TWA): 0.05 MG/M3 ( PPM)

PERMISSIBLE EXPOSURE LIMIT (PEL): 0.5 MG/M3 ( PPM)

CARCINOGENICITY: NTP: YES IARC: YES Z LIST: YES OSHA REG: YES

EFFECTS OF OVEREXPOSURE

INHALATION OF DUST MAY CAUSE IRRITATION TO UPPER RESPIRATORY TRACT.

PROLONGED CONTACT WITH AIRBORNE SUBSTANCE MAY LEAD TO PERFORATED SEPTUM.

CONTACT WITH SKIN OR EYES MAY CAUSE IRRITATION.

PROLONGED CONTACT MAY CAUSE IRRITATION OR EXTERNAL ULCERS.

INGESTION MAY CAUSE NAUSEA, VOMITING, HEADACHES, DIZZINESS,

GASTROINTESTINAL IRRITATION.

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MSDS for SODIUM DICHROMATE, DIHYDRATE Page 3

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CHRONIC EFFECTS OF OVEREXPOSURE MAY INCLUDE KIDNEY AND/OR LIVER DAMAGE.

TARGET ORGANS

NONE IDENTIFIED

MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE

NONE IDENTIFIED

ROUTES OF ENTRY

NONE INDICATED

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 WITH PLENTY OF WATER FOR AT

LEAST 15 MINUTES. FLUSH SKIN WITH WATER.

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6 - REACTIVITY DATA

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STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR

CONDITIONS TO AVOID: HEAT

INCOMPATIBLES: ORGANIC MATERIALS, STRONG ACIDS, COMBUSTIBLE MATERIALS,

STRONG REDUCING AGENTS

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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 SELF-CONTAINED BREATHING APPARATUS AND FULL PROTECTIVE CLOTHING.

KEEP COMBUSTIBLES (WOOD, PAPER, OIL, ETC.) AWAY FROM SPILLED MATERIAL.

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: D003 (REACTIVE WASTE)

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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: A RESPIRATOR WITH DUST/MIST FILTER IS RECOMMENDED.

IF AIRBORNE CONCENTRATION EXCEEDS TLV, A SELF-

CONTAINED BREATHING APPARATUS IS ADVISED.

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MSDS for SODIUM DICHROMATE, DIHYDRATE Page 4

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EYE/SKIN PROTECTION: SAFETY GOGGLES AND FACE SHIELD, UNIFORM,

PROTECTIVE SUIT, BUTYL RUBBER GLOVES ARE

RECOMMENDED.

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9 - STORAGE AND HANDLING PRECAUTIONS

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SAF-T-DATA(TM) STORAGE COLOR CODE: YELLOW (REACTIVE)

SPECIAL PRECAUTIONS

KEEP CONTAINER TIGHTLY CLOSED. STORE SEPARATELY AND AWAY FROM FLAMMABLE

AND COMBUSTIBLE MATERIALS.

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10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION

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DOMESTIC (D.O.T.)

PROPER SHIPPING NAME SODIUM DICHROMATE (AIR ONLY)

HAZARD CLASS ORM-A

UN/NA NA1479

LABELS NONE

REPORTABLE QUANTITY 1000 LBS.

INTERNATIONAL (I.M.O.)

PROPER SHIPPING NAME OXIDIZING SUBSTANCES, N.O.S. (SODIUM DICHROMATE)

HAZARD CLASS 5.1

UN/NA UN1479

LABELS OXIDIZING AGENT