Name:
Mercury (II) Oxide Yellow
Synonym:
Mercuric Oxide Red; Mercuric Oxide Yellow; Mercury(II) Oxide
CAS:
21908-53-2
Section 1 - Chemical Product
MSDS Name:Mercury (II) Oxide Yellow
Synonym:Mercuric Oxide Red; Mercuric Oxide Yellow; Mercury(II) Oxide
Synonym:Mercuric Oxide Red; Mercuric Oxide Yellow; Mercury(II) Oxide
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 21908-53-2 | Mercury (II) Oxide | ca 100 | 244-654-7 |
| Hazard Symbols: T Risk Phrases: 21 23 33 40 46 39/28 62 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful in contact with skin. Toxic by inhalation. Danger of cumulative effects. Limited evidence of a carcinogenic effect. May cause heritable genetic damage. Very toxic : danger of very serious irreversible effects if swallowed. Possible risk of impaired fertility.
Potential Health Effects
Eye:
May cause eye irritation. Contact may cause ulceration of the conjunctiva and cornea.
Skin:
May cause mild skin irritation. Harmful if absorbed through the skin.
Ingestion:
May be fatal if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause kidney damage. Inorganic mercury compounds may cause central and peripheral nervous system effects.
Inhalation:
May cause respiratory tract irritation. May cause abdominal pain, nausea, vomiting, and inflammation of the gums and mouth. Acute exposure to high concentrations of mercury vapors may cause severe respiratory tract irritation. May cause liver damage.
Chronic:
Overexposure may cause delayed kidney injury. Prolonged or repeated skin contact may cause dermatitis. Prolonged or repeated exposure can cause psychic abnormalities such as anxiety, depression and excitability. May cause adverse nervous system effects including muscle tremors and incoordination. May cause reproductive and fetal effects.
Harmful in contact with skin. Toxic by inhalation. Danger of cumulative effects. Limited evidence of a carcinogenic effect. May cause heritable genetic damage. Very toxic : danger of very serious irreversible effects if swallowed. Possible risk of impaired fertility.
Potential Health Effects
Eye:
May cause eye irritation. Contact may cause ulceration of the conjunctiva and cornea.
Skin:
May cause mild skin irritation. Harmful if absorbed through the skin.
Ingestion:
May be fatal if swallowed. May cause severe and permanent damage to the digestive tract. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause kidney damage. Inorganic mercury compounds may cause central and peripheral nervous system effects.
Inhalation:
May cause respiratory tract irritation. May cause abdominal pain, nausea, vomiting, and inflammation of the gums and mouth. Acute exposure to high concentrations of mercury vapors may cause severe respiratory tract irritation. May cause liver damage.
Chronic:
Overexposure may cause delayed kidney injury. Prolonged or repeated skin contact may cause dermatitis. Prolonged or repeated exposure can cause psychic abnormalities such as anxiety, depression and excitability. May cause adverse nervous system effects including muscle tremors and incoordination. May cause reproductive and fetal effects.
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.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
Ingestion:
Call a poison control center. If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Antidote: The use of Dimercaprol or BAL (British Anti-Lewisite) as a chelating agent should be determined by qualified medical personnel.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
Ingestion:
Call a poison control center. If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Antidote: The use of Dimercaprol or BAL (British Anti-Lewisite) as a chelating agent should be determined by qualified medical personnel.
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. Use water spray to keep fire-exposed containers cool. Containers may explode when heated. Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Extinguishing Media:
Do NOT get water inside containers. Do NOT use straight streams of water. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use water spray, fog or regular foam. Cool containers with flooding quantities of water until well after fire is out.
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. Use water spray to keep fire-exposed containers cool. Containers may explode when heated. Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Extinguishing Media:
Do NOT get water inside containers. Do NOT use straight streams of water. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use water spray, fog or regular foam. Cool containers with flooding quantities of water until well after fire is out.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. If sweeping is necessary, use a dust suppressant agent. Avoid generating dusty conditions. Provide ventilation.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. If sweeping is necessary, use a dust suppressant agent. Avoid generating dusty conditions. Provide ventilation.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation.
Wash clothing before reuse.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation.
Wash clothing before reuse.
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:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 21908-53-2: United States OSHA: 0.1 mg/m3 Ceiling (listed under Mercury, ary and inorganic compounds).
Belgium - TWA: (listed as mercury, aryl and inorganic compounds): mg/m3 VLE (as Hg) France - VME: (listed as mercury, aryl and inorganic compounds): mg/m3 VME (as Hg) Germany: (listed as mercury, aryl and inorganic compounds): 0.1 m VME (as Hg) Germany: (listed as mercury inorganic compounds): Skin absorber Malaysia: (listed as mercury, aryl and inorganic compounds): 0.1 mg/m3 TWA (as Hg) Netherlands: (listed as mercury inorganic compounds): 0.15 mg/m3 Netherlands: (listed as mercury inorganic compounds): 0.05 mg/m3 Russia: (listed as mercury inorganic compounds): 0.2 mg/m3 TWA (a Hg) Russia: (listed as mercury inorganic compounds): 0.05 mg/m3 STEL Hg) Spain: (listed as mercury, aryl and inorganic compounds): 0.1 mg/ VLA-ED (as Hg) 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 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.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 21908-53-2: United States OSHA: 0.1 mg/m3 Ceiling (listed under Mercury, ary and inorganic compounds).
Belgium - TWA: (listed as mercury, aryl and inorganic compounds): mg/m3 VLE (as Hg) France - VME: (listed as mercury, aryl and inorganic compounds): mg/m3 VME (as Hg) Germany: (listed as mercury, aryl and inorganic compounds): 0.1 m VME (as Hg) Germany: (listed as mercury inorganic compounds): Skin absorber Malaysia: (listed as mercury, aryl and inorganic compounds): 0.1 mg/m3 TWA (as Hg) Netherlands: (listed as mercury inorganic compounds): 0.15 mg/m3 Netherlands: (listed as mercury inorganic compounds): 0.05 mg/m3 Russia: (listed as mercury inorganic compounds): 0.2 mg/m3 TWA (a Hg) Russia: (listed as mercury inorganic compounds): 0.05 mg/m3 STEL Hg) Spain: (listed as mercury, aryl and inorganic compounds): 0.1 mg/ VLA-ED (as Hg) 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 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: Solid
Color: red or yellow
Odor: odorless
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 932 deg F
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: 0.053 g/L at 25C.
Specific Gravity/Density: 11.1 at 20C.
Molecular Formula: HgO
Molecular Weight: 216.5894
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials:
Chlorine, hydrazine hydrate, hydrogen peroxide, hypophosphorus acid, iodine + methyl and ethyl alcohol, magnesium, phospham, phosphorus, sodium + potassium, sulfur, reducing agents, easily oxidized materials, phosphinic acid.
Hazardous Decomposition Products:
Mercury/mercury oxides, oxygen.
Hazardous Polymerization: Has not been reported.
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials:
Chlorine, hydrazine hydrate, hydrogen peroxide, hypophosphorus acid, iodine + methyl and ethyl alcohol, magnesium, phospham, phosphorus, sodium + potassium, sulfur, reducing agents, easily oxidized materials, phosphinic acid.
Hazardous Decomposition Products:
Mercury/mercury oxides, oxygen.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 21908-53-2: OW8750000 LD50/LC50:
CAS# 21908-53-2: Oral, mouse: LD50 = 16 mg/kg; Oral, rat: LD50 = 18 mg/kg; Skin, rat: LD50 = 315 mg/kg.
Carcinogenicity:
Mercury (II) Oxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 21908-53-2: OW8750000 LD50/LC50:
CAS# 21908-53-2: Oral, mouse: LD50 = 16 mg/kg; Oral, rat: LD50 = 18 mg/kg; Skin, rat: LD50 = 315 mg/kg.
Carcinogenicity:
Mercury (II) Oxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Ecotoxicity:
Marine fish TLm=0.29 ppm/48H
Marine fish TLm=0.29 ppm/48H
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: MERCURY OXIDE
Hazard Class: 6.1
UN Number: 1641
Packing Group: II
IMO
Shipping Name: MERCURY OXIDE
Hazard Class: 6.1
UN Number: 1641
Packing Group: II
RID/ADR
Shipping Name: MERCURY OXIDE
Hazard Class: 6.1
UN Number: 1641
Packing group: II
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 21 Harmful in contact with skin.
R 23 Toxic by inhalation.
R 33 Danger of cumulative effects.
R 39/28 Very toxic : danger of very serious
irreversible effects if swallowed.
R 40 Limited evidence of a carcinogenic effect.
R 62 Possible risk of impaired fertility.
Safety Phrases:
S 22 Do not breathe dust.
S 24/25 Avoid contact with skin and eyes.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28B After contact with skin, wash immediately with
plenty of water and soap.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 21908-53-2: 3
Canada
CAS# 21908-53-2 is listed on Canadas DSL List.
CAS# 21908-53-2 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 21908-53-2 is listed on the TSCA inventory.
