MSDS - AMMONIUM DICHROMATE
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1 - PRODUCT IDENTIFICATION
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PRODUCT NAME: AMMONIUM DICHROMATE
FORMULA: (NH4)2CR2O7
FORMULA WT: 252.06
CAS NO.: 07789-09-5
NIOSH/RTECS NO.: HX7650000
COMMON SYNONYMS: DICHROMIC ACID, DIAMMONIUM SALT; AMMONIUM BICHROMATE
PRODUCT CODES: 0688,0690
EFFECTIVE: 08/15/86
REVISION #02
PRECAUTIONARY LABELLING
BAKER SAF-T-DATA(TM) SYSTEM
HEALTH - 4 EXTREME (CANCER CAUSING)
FLAMMABILITY - 1 SLIGHT
REACTIVITY - 3 SEVERE (OXIDIZER)
CONTACT - 3 SEVERE (CORROSIVE)
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
DANGER
HARMFUL IF INHALED
MAY CAUSE BURNS OR EXTERNAL ULCERS
CAUTION: CONTAINS CHROMIUM(VI),CANCER HAZARD
STRONG OXIDIZER - CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE.
USE IN CLOSED REACTION VESSELS REQUIRES STRINGENT PRECAUTIONS BECAUSE
OF EXPLOSION HAZARD.
KEEP FROM CONTACT WITH CLOTHING AND OTHER COMBUSTIBLE MATERIALS. DO NOT
STORE NEAR COMBUSTIBLE MATERIALS. DO NOT GET IN EYES, ON SKIN, ON CLOTHING.
AVOID BREATHING VAPOR. 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. FLUSH SPILL AREA WITH WATER
SPRAY.
SAF-T-DATA(TM) STORAGE COLOR CODE: YELLOW (REACTIVE)
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2 - HAZARDOUS COMPONENTS
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COMPONENT % CAS NO.
AMMONIUM DICHROMATE 90-100 7789-09-5
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3 - PHYSICAL DATA
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BOILING POINT: N/A VAPOR PRESSURE(MM HG): N/A
MELTING POINT: 170 C ( 338 F) VAPOR DENSITY(AIR=1): 8.7
SPECIFIC GRAVITY: 2.15 EVAPORATION RATE: N/A
(H2O=1) (BUTYL ACETATE=1)
SOLUBILITY(H2O): APPRECIABLE (MORE THAN 10 %) % VOLATILES BY VOLUME: 0
APPEARANCE & ODOR: BRIGHT, ORANGE-RED ODORLESS CRYSTALS.
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4 - FIRE AND EXPLOSION HAZARD DATA
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FLASH POINT (CLOSED CUP: N/A NFPA 704M RATING: 1-1-1 OXY
FLAMMABLE LIMITS: UPPER - N/A % LOWER - N/A %
FIRE EXTINGUISHING MEDIA
USE WATER SPRAY.
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.
IN CASES OF EXCESSIVE HEAT OR CONDITIONS OF CONFINEMENT AN EXTREME
HAZARD EXISTS RESULTING IN POSSIBLE SPONTANEOUS VIOLENT THERMAL
DECOMPOSITION.
TOXIC GASES PRODUCED
NITROGEN
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5 - HEALTH HAZARD DATA
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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
CONTACT WITH SKIN OR EYES MAY CAUSE SEVERE IRRITATION OR BURNS.
EXCESSIVE INHALATION OF DUST IS IRRITATING AND MAY BE SEVERELY DAMAGING
TO RESPIRATORY PASSAGES AND/OR LUNGS.
INGESTION MAY BE HARMFUL TO THE KIDNEYS, LIVER, AND GASTRO-INTESTINAL
TRACT.
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
INHALATION, SKIN CONTACT, EYE CONTACT
EMERGENCY AND FIRST AID PROCEDURES
CALL A PHYSICIAN.
IF SWALLOWED, IF CONSCIOUS, GIVE LARGE AMOUNTS OF WATER. 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.
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6 - REACTIVITY DATA
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STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR
INCOMPATIBLES: STRONG REDUCING AGENTS, COMBUSTIBLE MATERIALS
DECOMPOSITION PRODUCTS: AMMONIA
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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: D002, D003 (CORROSIVE, 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 CAPACITY OF
RESPIRATOR, A SELF-CONTAINED BREATHING APPARATUS
IS ADVISED.
EYE/SKIN PROTECTION: SAFETY GOGGLES, UNIFORM, APRON, PROPER 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 AMMONIUM DICHROMATE
HAZARD CLASS OXIDIZER
UN/NA UN1439
LABELS OXIDIZER
REPORTABLE QUANTITY 1000 LBS.
INTERNATIONAL (I.M.O.)
PROPER SHIPPING NAME AMMONIUM DICHROMATE
HAZARD CLASS 5.1
UN/NA UN1439
LABELS OXIDIZING AGENT