MSDS Name:Mercurochrome
Synonym:Merbromin; 2,7-Dibromo-4-hydroxymercurifluoresceine disodium salt; Mercuranine; Fluorchrome; Gallochrome; Gynochrome; Mercurocol; Mercurophag

EMERGENCY OVERVIEW
Very toxic by inhalation, in contact with skin and if swallowed.
Danger of cumulative effects.
Potential Health Effects
Eye:
Contact may cause transient eye irritation.
Skin:
Non-irritating to the skin. Low hazard for usual industrial handling. Used as a topical antiseptic.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.

Eyes: Immediately 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 if irritation develops or persists. Flush skin with plenty of soap and water.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
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.
Notes to Physician:

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.

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Wash area with soap and water. Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

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

Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 129-16-8: 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) Malaysia: (listed as mercury, aryl and inorganic compounds): 0.1 mg/m3 TWA (as 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 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.

Physical State: Solid
Color: green
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 available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Soluble in water.
Specific Gravity/Density:
Molecular Formula: C20H10Br2HgO6Na2
Molecular Weight: 752.444

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents; strong acids.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, sodium oxide, toxic fumes of mercury, bromine fumes.
Hazardous Polymerization: Has not been reported.

RTECS#:
CAS# 129-16-8: LM5250000 LD50/LC50:
Not available.
Carcinogenicity:
Mercurochrome - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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.

IATA
Shipping Name: MERCURY COMPOUNDS, SOLID, NOS
Hazard Class: 6.1
UN Number: 2025
Packing Group: II
IMO
Shipping Name: MERCURY COMPOUNDS, SOLID, NOS
Hazard Class: 6.1
UN Number: 2025
Packing Group: II
RID/ADR
Shipping Name: MERCURY COMPOUNDS, SOLID, NOS
Hazard Class: 6.1
UN Number: 2025
Packing group: II

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+
Risk Phrases:
R 26/27/28 Very toxic by inhalation, in contact with
skin and if swallowed.
R 33 Danger of cumulative effects.
Safety Phrases:
S 13 Keep away from food, drink and animal feeding
stuffs.
S 28 After contact with skin, wash immediately
with...
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# 129-16-8: No information available.
Canada
CAS# 129-16-8 is listed on Canadas DSL List.
CAS# 129-16-8 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 129-16-8 is not listed on the TSCA inventory.
It is for research and development use only.