2822 SODIUM DICHROMATE (English) ANACHEMIA MSDS ...

255 Norman.
Lachine (Montreal), Que
H8R 1A3
Section I. Product Identification and Uses
Product name SODIUM DICHROMATE
Chemical formula
Synonyms
Material uses
Na2Cr2O7.2H2O
Section II. Ingredients
Sodium bichromate dihydrate, Dichromic acid disodium
salt, AC-8334, AC-8334T, 82248, 82260
Anachemia Canada.
255 Norman.
Lachine (Montreal), Que
H8R 1A3
For laboratory use only.
Material Safety Data Sheet
WHMIS Protective Clothing TDG Road/Rail
WHMIS CLASS: D-1A C D-2A TDG CLASS: 6.1 5.1
Supplier
CI#
CAS# 7789-12-0
Code AC-8334
Formula weight
Supersedes
PIN: UN3086 PG: II
Not available.
1) SODIUM DICHROMATE DIHYDRATE 7789-12-0 90-100 Exposure limits: ACGIH (Water-soluble
Cr VI compounds (as Cr)) TWA 0.05
mg(Cr)/m3:
Toxicity values of the
hazardous ingredients
SODIUM DICHROMATE:
ORAL (LD50): Acute: 50 mg/kg (Rat).
EMERGENCY NUMBERS:
(USA) CHEMTREC : 1(800) 424-9300 (24hrs)
(CAN) CANUTEC : 1(613) 996-6666 (24hrs)
(USA) Anachemia : 1(518) 297-4444
(CAN) Anachemia : 1(514) 489-5711
Name CAS # %
298.04
TLV
5.1

Section III. Physical Data
Physical state and
appearance / Odor
pH (1% soln/water)
Odor threshold
Percent volatile
Freezing point
Boiling point
Specific gravity
Vapor density
Vapor pressure
Water/oil dist. coeff.
Evaporation rate
Solubility
Solid. (Reddish to orange crystals. Odorless.)
3.5 (10% aqueous solution)
Not available.
0% at 21°C
Dehydrates at 100°C.
Decomposes at 400°C.
2.52 (Water = 1)
Not applicable.
Not applicable.
Not available.
Not applicable.
74% (in H2O) at 20°C.
Section IV. Fire and Explosion Data
Flash point
Flammable limits
Auto-ignition temperature
Fire degradation
products
Fire extinguishing
procedures
Fire and Explosion
Hazards
None
Not available.
Not available.
Section V. Toxicological Properties
SODIUM DICHROMATE page 2/4
Use flooding quantities of water. Wear adequate personal protection to prevent contact with material or its combustion products.
Self contained breathing apparatus with a full facepiece operated in a pressure demand or other positive pressure mode. Cool
containing vessels with flooding quantities of water until well after fire is out. Move containing vessels from fire if without risk.
Powerful oxidizing agent; may ignite oxidizable materials. Contributes to combustion of other materials. Contact with
other material may cause fire and/or explosion. Contact with other material may form shock, heat or friction sensitive
mixtures. Container explosion may occur under fire conditions or when heated. Emits toxic fumes under fire conditions.
Routes of entry Inhalation and ingestion. Eye contact. Skin contact. Skin absorption.
Effects of Acute
Exposure
Skin
Inhalation
Ingestion
Chromium and sodium oxides.
May be fatal by ingestion, inhalation or skin absorption. Severe irritant! Potentially harmful amounts can cause damage to
kidneys, liver, blood, lungs, eyes, skin, respiratory system, and/or bone marrow.
Eye Causes conjunctivitis, severe irritation or burns and loss of vision. May cause permanent damage.
Causes severe irritation. Prolonged exposure may result in skin burns and ulcerations. Contact with broken skin may lead to
formation of firmly marginated "chrome sores". Massive overexposure could lead to damage to the kidneys, liver, blood, and/or
bone marrow, kidney failure and death. A strong sensitizer which may cause skin rash.
Inhalation of dust or mist may irritate the nasal septum and respiratory tract. Destructive to tissues of mucous
membranes. Prolonged or repeated exposure may cause ulceration and perforation of the nasal septum. May cause
headache, nausea, vomiting, chemical pneumonitis and pulmonary edema. May cause sensitization by inhalation. Can
cause liver, kidney, and lung damage.
Burns in mouth, pharynx and gastrointestinal tract (can cause severe tissue destruction.). May cause vomiting, nausea,
abdominal pain, fever, diarrhea, coma, bleeding and/or tissue ulceration, gastroentritis, toxic nephritis with glycosuria,
blood and bone marrow damage, liver and kidney failure, peripheral vascular collapse and death. Estimated lethal dose is
5 g.

Section V. Toxicological Properties
Effects of Chronic
Overexposure
Section VI. First Aid Measures
Eye contact
Skin contact
Inhalation
Ingestion
Stability
Hazardous decomp.
products
Incompatibility
DO NOT induce vomiting. If conscious, wash out mouth with water. Have conscious person drink several glasses of
water to dilute. Guard against aspiration into lungs. If spontaneous vomiting occurs, have victim lean forward with head
down to avoid breathing in of vomitus. Seek immediate medical attention. Never give anything by mouth to an
unconscious or convulsing person.
Section VII. Reactivity Data
Reaction Products
Stable. Conditions to avoid: High temperatures, sparks, open flames and all other sources of ignition, contamination.
Not available.
SODIUM DICHROMATE page 3/4
Dermatitis, conjunctivitis, "chrome sores", ulceration and perforation of the nasal septum. There is sufficient evidence of the
carcinogenicity of this substance in humans (known carcinogen). This substance is known to cause allergic reactions in
certain individuals once they become sensitized after exposure to even small amounts over a period of time. Chromium(VI)
compounds in the form of chromates and dichromates have been found to be mutagenic in bacterial and mammalian cells,
including those of the chinese hamster. Passes through the placental barrier in animal. Repeated or prolonged exposure to
the substance can produce target organs damage. To the best of our knowledge, the chemical, physical, and toxicity of this
substance has not been fully investigated. Teratogenic effects: Not available. Toxicity of the product to the reproductive
system: Not available. Medical conditions which may be aggravated: Individuals with peexisting diseases of skin, asthma,
allergies or known sensitization to chromic acid or chromates may be more susceptible to the effects of this material.
Immediately flush eyes with copious quantities of water for at least 15 minutes holding lids apart to ensure flushing of the
entire surface. Washing within 1 minute is essential to achieve maximum effectiveness. Seek immediate medical
attention.
Immediately flush skin with plenty of water and soap for at least 15 minutes while removing contaminated clothing and
shoes. Seek immediate medical attention. Wash contaminated clothing before reusing. Discard contaminated leather
articles such as shoes and belt.
Remove patient to fresh air. Administer approved oxygen supply if breathing is difficult. Administer artificial respiration or
CPR if breathing has ceased. Seek immediate medical attention.
Organic materials, reducing agents, combustible materials, acids, alcohols, acetone, hydrazine, hydroxylamine,
hydroxylamine salts, mercury cyanide, calcium hydroxide, ethylene glycol, oils, grease, oxidizing agents, boron, easily
oxidizable materials, silicon, tungsten, sulfuric acid, iron, carbides, sulfur, aluminum, acetic anhydride, amines, aniline,
2-propanol, trinitrotoluene, ethanol, paper. This product is a mild oxidizer in solution, but a strong oxidizer in highly acidic
solutions.
Contact with other material may cause fire and/or explosion. Product dehydrates at 100°C and decomposes at 400°C.
Hazardous polymerization will not occur.

Section VIII. Preventive Measures
Protective Clothing in
case of spill and leak
Spill and leak
Waste disposal
Storage and Handling
Wear self-contained breathing apparatus, rubber boots and heavy rubber gloves. Full suit.
Evacuate the area. Eliminate all sources of ignition. Sweep up and place in container for disposal. Avoid raising dust.
Use non-sparking tools. Ventilate area and wash spill site after material pick up is complete. DO NOT empty into drains.
DO NOT touch damaged container or spilled material. Avoid contact with a combustible material (wood, paper, oil,
clothing...).
According to all applicable regulations. Harmful to aquatic life at low concentrations. Can be dangerous if allowed to enter
drinking water intakes. Do not contaminate domestic or irrigation water supplies, lakes, streams, ponds, or rivers.
Store in a cool place away from heated areas, sparks, and flame. Store in a well ventilated area. Store away from incompatible
materials. Do not add any other material to the container. Do not wash down the drain. Do not breathe dust. In case of insufficient
ventilation, wear suitable respiratory equipment. Keep away from combustible material. Keep away from direct sunlight or strong
incandescent light. Keep container tightly closed and dry. Manipulate under an adequate fume hood. Avoid raising dust. Use
non-sparking tools. Empty containers may contain a hazardous residue. Handle and open container with care. Minimize dust
generation and exposure - use dust mask or appropriate protection. Take off immediately all contaminated clothing. Avoid contact
with a combustible material (wood, paper, oil, clothing...). This product must be manipulated by qualified personnel. Do not get in
eyes, on skin, or on clothing. Wash well after use. In accordance with good storage and handling practices. Do not allow smoking
and food consumption while handling. Wear clean work-clothing daily. Product is highly hygroscopic. Do not store on wood floors.
Section IX. Protective Measures
Protective clothing
Section X. Other Information
SODIUM DICHROMATE
page 4/4
Face shield and splash goggles. Impervious rubber gloves, apron, coveralls, and/or other resistant protective clothing. Sufficient to protect
skin. A OSHA/MSHA jointly approved respirator is advised in the absence of proper environmental controls. If more than TLV, do not breathe
vapor. Wear self-contained breathing apparatus. Do not wear contact lenses. Make eye bath and emergency shower available. Ensure that
eyewash station and safety shower is proximal to the work-station location.
Engineering controls Use in a chemical fume hood to keep airborne levels below recommended exposure limits. Do not use in unventilated
spaces.
Special Precautions or Powerful oxidizing agent; may ignite oxidizable materials. Highly toxic! Severe irritant!
comments
Prolonged exposure may result in skin burns and ulcerations. Carcinogen! Mutagen!
Sensitizer! Possible risks of irreversible effects. Toxic effects may be delayed. Do not breathe
dust. Avoid all contact with the product. Avoid prolonged or repeated exposure. Use in a
chemical fume hood. Keep away from heat, sparks and flame. Use non-sparking tools. When
contaminated, it is very sensitive. Contact with other material may form shock, heat or friction
sensitive mixtures. Handle and open container with care. Container should be opened only by a
technically qualified person.
NOTE TO PHYSICIAN: Massive overexposure to solutions of this product could lead to kidney
failure and death. Death has been avoided in several such cases through the use of early renal
dialysis. It has been reported there is little value from chelating agents, however, that ascorbic
acid administered intravenously is an effective antidote in preventing renal failure. Skin ulcers
may be treated by removal from exposure, daily cleansing and debridement, and application of
antibiotic cream and dressing.
RTECS NO: HX7750000 (Sodium dichromate dihydrate).
Prepared by MSDS Department/Département de F.S.. Validated 21-Jul-2011
EMERGENCY NUMBERS:
(USA) CHEMTREC :
1(800) 424-9300 (24hrs)
(CAN) CANUTEC :
1(613) 996-6666 (24hrs)
(USA) Anachemia :
1(518) 297-4444
(CAN) Anachemia :
1(514) 489-5711
NFPA
While the company believes the data set forth herein are accurate as of the date hereof, the company makes no warranty with respect thereto
and expressly disclaims all liability for reliance thereon. Such data are offered solely for your consideration, investigation and verification.