Name:
Potassium chromate p.a.
Synonym:
Dipotassium chromate
CAS:
7789-00-6
Section 1 - Chemical Product
MSDS Name:Potassium chromate p.a.
Synonym:Dipotassium chromate
Synonym:Dipotassium chromate
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7789-00-6 | Chromic acid (H2CrO4), dipotassium sal | >99.5 | 232-140-5 |
| Hazard Symbols: T N Risk Phrases: 36/37/38 43 46 49 50/53 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin. May cause sensitization by skin contact. May cause heritable genetic damage.
May cause cancer by inhalation. Very toxic to aquatic organisms; may cause long-term adverse effects in the aquatic environment.Oxidizer.
Potential Health Effects
Eye:
May cause eye irritation. Exposure to particulates or solution may cause conjunctivitis, ulceration, and corneal abnormalities.
Skin:
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause deep, penetrating ulcers of the skin. May cause dermatitis.
Ingestion:
May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea.
Inhalation:
May cause ulceration and perforation of the nasal septum if inhaled in excessive quantities. May cause chemical bronchitis with coughing and difficulty in breathing. Causes severe respiratory tract irritation.
Chronic:
Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion. Prolonged or repeated exposure may lead to asthma and perforation of the nasal septum. Repeated inhalation may cause chronic bronchitis. May cause liver and kidney damage. May cause cancer in humans.
Irritating to eyes, respiratory system and skin. May cause sensitization by skin contact. May cause heritable genetic damage.
May cause cancer by inhalation. Very toxic to aquatic organisms; may cause long-term adverse effects in the aquatic environment.Oxidizer.
Potential Health Effects
Eye:
May cause eye irritation. Exposure to particulates or solution may cause conjunctivitis, ulceration, and corneal abnormalities.
Skin:
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause deep, penetrating ulcers of the skin. May cause dermatitis.
Ingestion:
May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea.
Inhalation:
May cause ulceration and perforation of the nasal septum if inhaled in excessive quantities. May cause chemical bronchitis with coughing and difficulty in breathing. Causes severe respiratory tract irritation.
Chronic:
Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion. Prolonged or repeated exposure may lead to asthma and perforation of the nasal septum. Repeated inhalation may cause chronic bronchitis. May cause liver and kidney damage. May cause cancer in humans.
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. Flush skin with plenty of soap and 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:
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Monitor kidney function closely. Monitor liver function closely.
Monitor cardiovascular function closely. Monitor pulmonary function closely.
Skin:
Get medical aid. Flush skin with plenty of soap and 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:
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Monitor kidney function closely. Monitor liver function closely.
Monitor cardiovascular function closely. Monitor pulmonary function closely.
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. Oxidizer. Greatly increases the burning rate of combustible materials.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Oxidizer. Greatly increases the burning rate of combustible materials.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Spills/Leaks:
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Use only in a well-ventilated area.
Minimize dust generation and accumulation. 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.
Wash thoroughly after handling. Use only in a well-ventilated area.
Minimize dust generation and accumulation. 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 general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Appearance: yellow
Odor: Odorless
pH: Not available.
Vapor Pressure: 0
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 975 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: insoluble in alcohol
Specific Gravity/Density: 2.7320g/cm3
Molecular Formula: CrK2O4
Molecular Weight: 194.20
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, combustible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, hydrazine, sulfur, aluminum, and some plastics.
Hazardous Decomposition Products:
Oxides of potassium.
Hazardous Polymerization: Will not occur.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, combustible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, hydrazine, sulfur, aluminum, and some plastics.
Hazardous Decomposition Products:
Oxides of potassium.
Hazardous Polymerization: Will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7789-00-6: GB2940000 LD50/LC50:
CAS# 7789-00-6: Oral, mouse: LD50 = 180 mg/kg.
Carcinogenicity:
Chromic acid (H2CrO4), dipotassium salt - ACGIH: A1 - Confirmed Human Carcinogen (listed as ** undefined ** California: carcinogen; initial date 2/27/87 (listed as ** undefined * NTP: Known carcinogen (listed as ** undefined **).
OSHA: Possible select carcinogen (listed as ** undefined **).
IARC: Group 3 carcinogen (listed as ** undefined **).
Other:
See actual entry in RTECS for complete information.
CAS# 7789-00-6: GB2940000 LD50/LC50:
CAS# 7789-00-6: Oral, mouse: LD50 = 180 mg/kg.
Carcinogenicity:
Chromic acid (H2CrO4), dipotassium salt - ACGIH: A1 - Confirmed Human Carcinogen (listed as ** undefined ** California: carcinogen; initial date 2/27/87 (listed as ** undefined * NTP: Known carcinogen (listed as ** undefined **).
OSHA: Possible select carcinogen (listed as ** undefined **).
IARC: Group 3 carcinogen (listed as ** undefined **).
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Ecotoxicity:
Water danger/protection: WGK 2 EC50 for Daphnia magna =19.2 ug/l/48 hr and 7.39 ug/l/96 hr LC50 (96 hr) for sheephead minnow, fathead minnow, bluegill sunfish, threespine stickleback 25-180 mg/l Water danger/protection: WGK 2
Water danger/protection: WGK 2 EC50 for Daphnia magna =19.2 ug/l/48 hr and 7.39 ug/l/96 hr LC50 (96 hr) for sheephead minnow, fathead minnow, bluegill sunfish, threespine stickleback 25-180 mg/l Water danger/protection: WGK 2
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: TOXIC SOLID, INORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 3288
Packing Group: III
IMO
Shipping Name: TOXIC SOLID, INORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 3288
Packing Group: III
RID/ADR
Shipping Name: TOXIC SOLID, INORGANIC, N.O.S.
Dangerous Goods Code: 6.1(65C)
UN Number: 3288
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T N
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 43 May cause sensitization by skin contact.
R 46 May cause heritable genetic damage.
R 49 May cause cancer by inhalation.
R 50/53 Very toxic 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 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and/or 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# 7789-00-6: 2
United Kingdom Occupational Exposure Limits
CAS# 7789-00-6: OES-United Kingdom, TWA (listed as ** undefined
**): 0.5 mg/m3 TWA
Canada
CAS# 7789-00-6 is listed on Canadas DSL List.
CAS# 7789-00-6 is listed on Canadas Ingredient Disclosure List.
Exposure Limits
CAS# 7789-00-6 (listed as ** undefined **): OEL-ARAB Republic of Egypt
:TWA 0.05 mg/m3
OEL-AUSTRALIA:TWA 0.05 mg/m3
OEL-BELGIUM:TWA 0.5 mg/m3
OEL-DENMARK:TWA 0.5 mg/m3
OEL-FINLAND:TWA 0.01 mg/m3
OEL-FRANCE:TWA 0.5 mg/m3
OEL-JAPAN:TWA 0.5 mg/m3
OEL-THE NETHERLANDS:TWA 0.5 mg/m3
OEL-THE PHILIPPINES:TWA 1 mg/m3
OEL-SWEDEN:TWA 0.5 mg/m3
OEL-UNITED KINGDOM:TWA 0.5 mg/m3
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 7789-00-6 is listed on the TSCA inventory.
