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MSDS 
:
 Potassium Dichromate 0.021 M to 0.0417M
CAS 
:
 7732-18-5
SYNONYMS 
:
 None
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | Balance | 231-791-2 |
|----------------|--------------------------------------|----------|-----------|
| 7778-50-9 |Potassium dichromate | <1.234% | 231-906-6 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: T
Risk Phrases: 43 46 49 52/53

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
May cause sensitization by skin contact. May cause heritable genetic
damage. May cause cancer by inhalation. Harmful to aquatic organisms,
may cause long-term adverse effects in the aquatic
environment.Carcinogen.

Potential Health Effects
Eye:
Contact with eyes may cause severe irritation, and possible eye
burns.
Skin:
May cause skin sensitization, an allergic reaction, which becomes
evident upon re-exposure to this material. Prolonged skin contact
may cause injury especially if the skin is abraded. May cause severe
irritation and possible burns.
Ingestion:
May be fatal if swallowed. May cause severe gastrointestinal tract
irritation with nausea, vomiting and possible burns. May cause liver
and kidney damage. May cause methemoglobinemia, cyanosis (bluish
discoloration of skin due to deficient oxygenation of the blood),
convulsions, and death. Methemoglobinemia is characterized by
dizziness, drowsiness, headache, shortness of breath, cyanosis
(bluish discoloration of skin due to deficient oxygenation of the
blood), rapid heart rate and chocolate-brown colored blood.
Inhalation:
May cause irritation of the respiratory tract with burning pain in
the nose and throat, coughing, wheezing, shortness of breath and
pulmonary edema. May cause asthmatic attacks due to allergic
sensitization of the respiratory tract. May cause ulceration and
perforation of the nasal septum if inhaled in excessive quantities.
May cause an allergic response. May cause severe respiratory tract
irritation and possible burns. Inhalation may produce ulcerated nasal
mucosa, perforated nasal septa, rhinitis (inflammation of the mucous
membrane of the nose), nosebleed, perforated eardrums, pulmonary
edema, asthma, kidney damage, and erosion and discoloration of the
teeth.
Chronic:
Prolonged or repeated skin contact may cause sensitization
dermatitis and possible destruction and/or ulceration. Repeated
exposure may cause erosion of teeth. May cause liver and kidney
damage. Chronic inhalation may cause nasal septum ulceration and
perforation. May cause cancer according to animal studies.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical
aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid.
Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Wash area with soap and water.
Clean up spills immediately, observing precautions in the Protective
Equipment section. Provide ventilation.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Use with adequate ventilation. Avoid
contact with eyes, skin, and clothing. Keep container tightly closed.
Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits
CAS# 7732-18-5:

CAS# 7778-50-9:
United Kingdom, WEL - TWA: (listed as chromium (vi) compounds): 0
mg/m3 TWA (as Cr)
United Kingdom, WEL - STEL: (listed as chromium (vi) compounds):
mg/m3 STEL (as Cr)
United States OSHA: 0.1 mg/m3 Ceiling (listed under Chromates).
Belgium - TWA: (listed as chromium (vi) compounds- water soluble)
0.05 mg/m3 VLE (as Cr)
France - VME: (listed as chromium (vi) compounds): 0.05 mg/m3 VME
Cr)
Germany: (listed as chromium (vi) compounds): 0.05 mg/m3 VME (as
Japan: (listed as chromium (vi) compounds): 0.05 mg/m3 OEL (as Cr
0.01 mg/m3 OEL (certain compounds, as Cr)
Malaysia: (listed as chromium (vi) compounds- water soluble): 0.0
mg/m3 TWA (as Cr)
Netherlands: (listed as chromium (vi) compounds- water soluble):
mg/m3 STEL
Netherlands: (listed as chromium (vi) compounds- water soluble):
0.025 mg/m3 MAC
Spain: 0.05 mg/m3 VLA-ED (as Cr)

Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Liquid
Color: orange
Odor: none reported
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Miscible with water.
Specific Gravity/Density:
Molecular Formula: Mixture
Molecular Weight: 0

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Sulfuric acid, acetone, alcohols, silica gel, hydrazine,
hydroxylamine, ethylene glycol, boron, silicon, tungsten.
Hazardous Decomposition Products:
Oxides of potassium, chromium dioxide.
Hazardous Polymerization: Has not been reported

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 7732-18-5: ZC0110000
CAS# 7778-50-9: HX7680000
LD50/LC50:
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7778-50-9: Draize test, rabbit, eye: 140 mg Severe; Oral,
mouse: LD50 = 190 mg/kg; Oral, rat: LD50 = 25 mg/kg; Skin, rabbit:
LD50 = 14 mg/kg.
Oral, rat: LD50 = 25-50
Carcinogenicity:
Water -
Not listed by ACGIH, IARC, or NTP.
Potassium dichromate -
California: carcinogen, initial date 2/27/87 (listed as Chromium (VI)
NTP: Known carcinogen (listed as Chromium (VI) compounds).
IARC: Group 1 carcinogen (listed as Chromium (VI) compounds).
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Potassium dichromate has a high potential to affect some aquatic
organisms and secondary waste treatment microorganisms. It is
expected to have a high potential to affect the germination and
growth of some plants. Acute aquatic effects: 48-hour LC50; Golden
orfe(minnow): 224ng/L 48-hour LC50; Mosquito fish: 420 mg/L 24-hour
LC50; Water flea: 1.4 mg/L. 24-hour EC50(immobilization); waterflea:
0.89ng/L

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Products which are considered hazardous for supply are classified as Special
Waste and the disposal of such chemicals is covered by regulations which may
vary according to location. Contact a specialist disposal company or the local
waste regulator for advice. Empty containers must be decontaminated before
returning for recycling.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
USA RQ: CAS# 7778-50-9: 10 lb final RQ; 4.54 kg final RQ

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 46 May cause heritable genetic damage.
R 49 May cause cancer by inhalation.
R 43 May cause sensitization by skin contact.
R 52/53 Harmful to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 53 Avoid exposure - obtain special instructions
before use.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 7732-18-5: No information available.
CAS# 7778-50-9: 3
Canada
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 7778-50-9 is listed on Canada's DSL List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 7778-50-9 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 7778-50-9 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

Text for R-phrases from Section 2
MSDS Creation Date: 6/04/1998 Revision #3 Date: 3/18/2003

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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