MATERIAL SAFETY DATA SHEET POTASSIUM DICHROMATE, <1N
PRODUCT CODE NUMBER(S): 6061-6, 6062-6
PRODUCT IDENTIFICATION FIRE AND EXPLOSION DATA
Chemical Name and Synonyms: Potassium dichromate, Flammability: Not combustible but strong oxidizer. If evap-
<1N orated to dryness can become a fire hazard. Will enhance
the burning rate or cause spontaneous combustion of or-
Chemical Family: Inorganic salt solution
ganic or combustible material. Strong oxidants may explode
Chemical Formula: K2Cr2O7 in H2O
when shocked or if exposed to heat, flame or friction. May
Product Use: Laboratory reagent be initiation source for dust or vapour explosions.
Manufacturer鈥檚 Name and Address: Extinguishing Media: Use flooding amounts of water to
Caledon Laboratories Ltd. blanket fire, cool exposed containers, and to flush solid or
vapours away from fire. Fight fire from upwind, from a safe
40 Armstrong Avenue
distance. Firefighters must wear protective equipment (full
Georgetown, Ontario L7G 4R9
face-piece, positive-pressure self-contained breathing appa-
Telephone No: (905) 877-0101 ratus) and clothing sufficient to prevent inhalation of dusts or
Fax No: (905) 877-6666 vapours, and contact with skin and eyes.
Emergency Telephone No: CANUTEC (613) 996-6666 Flash Point (Method Used): Not applicable
Autoignition Temperature: Not applicable
HAZARDOUS INGREDIENTS OF MATERIALS Upper Flammable Limit (% by volume): Not applicable
Lower Flammable Limit (% by volume): Not applicable
Ingredients % TLV Units CAS No.
Hazardous Combustion Products: K2O, chromium oxides
3
Potassium < 0.5 0.05 mg/m 7778-50-9
Sensitivity to Impact: None identified
dichromate (Cr compounds)
Sensitivity to Static discharge: None identified
PHYSICAL DATA
TOXICOLOGICAL PROPERTIES AND HEALTH DATA
Physical State: Liquid
Odour and Appearance: Clear, orange-red liquid; odour- Toxicological Data:
less
LD50: (oral, mouse) 57 mg/kg; (dermal, rabbit) 1,170 mg/kg
Odour Threshold (ppm): Not applicable
LC50: Not available
Vapour Pressure (mm Hg): Not available
Vapour Density (Air = 1): Not available Effects of Acute Exposure to Product:
Evaporation Rate: Not available
Inhaled: Irritating and corrosive to mucous membranes.
Boiling Point (degrees C): ~100掳C Severe overexposure to mist may cause ulceration of the
Freezing Point (degrees C): ~0掳C nasal septum and eventual perforation if exposure is not ter-
minated.
pH: Not available
In contact with skin: Irritating. Contact with broken skin
Specific Gravity: ~1.0
may cause deep penetrating ulcers, 鈥渃hrome sores鈥?. Pro-
Coefficient of Water/Oil distribution: Not available
longed or repeated exposure may cause allergic dermatitis.
In cases of severe overexposure, may be absorbed by skin
SHIPPING DESCRIPTION with systemic effects (See 鈥淚ngested鈥?).
In contact with eyes: Irritating. May cause conjunctivitis.
UN: Not regulated
Strong solutions may cause severe irritation and possible
T.D.G. Class: Not regulated
permanent damge to eye tissue.
Pkg. Group: Not regulated Ingested: Irritating. May cause damage to gastrointestinal
tract. Strong solutions may cause burns and ulceration.
REACTIVITY DATA Large amounts may cause kidney, liver, blood, and lung
damage.
Chemical Stability: Stable
Incompatibility with other substances: Reacts violently
Effects of Chronic Exposure to Product:
or explosively with anhydrous hydroxylamine, organic mate-
rials, reducing agents, acids, metals. Dangerous fire risk in Prolonged exposure can cause liver, kidney, lung and blood
contact with organic materials. Mildly oxidizing in solution; damage. Prolonged or repeated inhalation may cause ulcer-
becomes strongly oxidizing in strong acid solution. ation and perforation of the nasal system. Prolonged or re-
Reactivity: Avoid elevated temperatures, ignition sources, peated skin contact may lead to 鈥渃hrome sores鈥? and may be
combustible and incompatible materials, generation of mist. absorbed with systemic effects, i.e. liver and kidney dam-
Hazardous Decomposition Products: Potassium and age.
chromium oxides.
MSDS POTASSIUM DICHROMATE, <1N
CODE: 6061-6, 6062-6
FIRST AID MEASURES
Carcinogenicity: Chromium is listed as carcinogenic by
NTP, IARC (Group A1-confirmed human carcinogen)
Specific Measures:
Teratogenicity: No specific information available. Hexava-
lent chromium compounds have been found to be Eyes: Flush eyes thoroughly with gently running water for
teratogenic in animal testing, causing malformations and in- ten to fifteen (10-15) minutes, holding eyelids open while
creased embryo deaths. flushing. Flushing eyes within one minute of exposure is
Reproductive Effects: Reproductive data cited in animal essential to achieve maximum effectiveness. Take care not
testing (RTECS No. HX 7680000). to flush contaminated water into unaffected eye. Wear pro-
Mutagenicity: Insufficient data available tective gloves to prevent contact during first aid procedures.
Get medical attention immediately.
Synergistic Products: None found
Skin: Remove contaminated clothing, including watches,
PREVENTIVE MEASURES rings, belts, and shoes. Immediately flush skin with plenty
of running water for at least fifteen (15) minutes. Take par-
Engineering Controls: Local exhaust ventilation recom- ticular care to rinse folds, crevices, and creases of skin. Get
mended. medical attention. Decontaminate clothing before reuse, or
Respiratory Protection: Dust/mist mask. Use only in a discard; contaminated clothing can become dangerously
fumehood. For concentrations above the REL (recom- combustible.
mended exposure limit, chromates, as Cr, 0.001mg/m3,) Inhalation: Remove to fresh air. Give oxygen and get
any detectable or unknown concentrations, for confined medical attention for any breathing difficulty.
space entry, for fire or spill conditions, NIOSH approved full Ingestion: If the victim is alert and not convulsing, rinse
face-piece, positive-pressure self-contained breathing appa- mouth thoroughly with water and give 2 to 4 glasses of wa-
ratus, or positive-pressure full face-piece supplied-air ter to drink to dilute. Get medical attention.
respirator with auxillairy positive-pressure self-contained
breathing apparatus. REFERENCES USED
Eye Protection: Chemical safety glasses
CCINFO disc: Cheminfo
Skin Protection: Rubber gloves should be worn. Other
Budavari: The Merck Index, 12th ed., 1997
protective clothing, labcoat, sleeves, sufficient to prevent
contact. Sax, Lewis: Hawley鈥檚 Condensed Chemical DIctionary, 11th
Other Personal Protective Equipment: An eyewash and ed., 1987
safety shower should be nearby and ready for use. Sax: Dangerous Properties of Industrial Materials, 5th ed.,
Leak and Spill Procedure: Evacuate area of spill. Keep 1979
away from combustible materials. Eliminate sources of igni-
Suppliers鈥? Material Safety Data Sheets
tion. Cleanup personnel must be thoroughly trained in the
handling of hazardous materials, and must wear protective
ADDITIONAL INFORMATION
equipment and clothing sufficient to prevent inhalation of
dusts, fumes or mists, and contact with skin, eyes or cloth- Date Issued: December 11, 1991
ing. Absorb with inert absorbent, transfer to container and
Revision: February 2008
arrange removal by disposal company. Prevent from enter-
MSDS: 6061-6, 6062-6
ing sewers or waterways. As contact with any oxidant can
render organic matter (paper, wood, textiles) dangerously Proposed WHMIS Designation: C; D1A; D2A; E
combustible, wash area of spillage and contaminated cloth-
ing thoroughly with water. Prepared by: Caledon Laboratories Ltd. (905) 877-0101
Waste Disposal: Follow all federal, provincial and local Caledon Laboratories Ltd. believes the information contained
regulations for disposal.
herein is reliable and accurate. Caledon makes no warranty
Handling Procedures and Equipment: TOXIC, CORRO-
with respect thereto and expressly disclaims all liability for reli-
SIVE, OXIDIZER, CARCINOGEN. Workers using this
ance thereon. Such information is solely for your consider-
chemical must be thoroughly trained in its hazards and its
ation, investigation, and verification.
safe use, and must wear appropriate protective equipment
and clothing. Keep away from combustible or organic mate-
rials, and all sources of ignition. Avoid contact and inhalation
of dust or mist. Do not shock. Use the smallest possible
amount for the purpose, in designated areas with adequate
ventilation. Keep work area clean and free of extraneous,
particularly combustible, materials. Keep containers closed
when not in use and when empty. Empty containers may
contain hazardous residues; treat with caution.
Storage Requirements: Store in suitable, labelled contain-
ers, in a cool, dry, well-ventilated area, out of direct sunlight
and away fromany ignition sources, and incompatible, com-
bustible or organic materials. Storage facilities (shelves,
floors) should be constructed of non-combustible materials.
Keep containers tightly closed when not in use and when
empty. Protect from damage, and inspect frequently for
signs of leaking; unattended spillage onto combustible mate-
rials (wood, paper, etc.) could result in fire.
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