MATERIAL SAFETY DATA SHEET
Methyl orange
Page 1 of 3
Date of Issue: 21 Spet 06
STATEMENT OF HAZARDOUS NATURE
Hazardous according to criteria of Worksafe Australia
COMPANY DETAILS
ProSciTech
Company:
Address: PO Box 111, Thuringowa Central Qld. 4817 Australia
Street Address: 1/11 Carlton Street, Kirwan, Qld. 4817 Australia
Telephone Number: (07) 4773 9444
Fax Number: (07) 4773 2244
IDENTIFICATION SECTION
Product Name Methyl orange
Other Names C.I.#13025, Acid Orange, Dexon, Diazoben, Eniamethyl Orange,
Helianthine, Gold Orange, Methyl Orange B, Orange 3, Tropaeol.
Product Code C118, C1181, C1185
U.N. Number None allocated
Dangerous Goods Class None allocated
and Subsidiary Risk None allocated
Hazchem Code None allocated
Poison Schedule None allocated
Use Biological stain
Physical Description and Properties
Appearance Odorless orange solid
Boiling Point/Melting Point >300 deg C
Vapour Pressure
Specific Gravity 1.00
Flash Point
Flammability Limits Not determined
Solubility in water Soluble in hot water
Other Properties
Ingredients
Chemical Name CAS Number Proportion
C.I. Acid Orange 52 (Methyl Orange) 547-58-0 100%
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Methyl orange
HEALTH HAZARD INFORMATION
Health Effects:
Acute
Swallowed: Harmful if swallowed. May cause gastrointestinal irritation with nausea,
vomiting and diarrhea.
Eye: May cause eye irritation. This product contains an anionic dye. Similar dyes
have not caused injury to the cornea or conjunctiva in documented exposure
cases with human or rabbit eyes.
Skin: May cause skin irritation.
Inhaled: None allocated
Chronic: No information found.
First Aid:
Swallowed: 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.
Eye: 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 if irritation develops or persists. Wash clothing before reuse.
Flush skin with plenty of soap and water.
Inhaled: Remove from exposure to fresh air immediately. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
First Aid Facilities: Eye bath, safety shower
Advice to Doctor Treat symptomatically and supportively.
PRECAUTIONS FOR USE
Exposure Standards: No exposure standard established
Engineering Controls: Use adequate ventilation to keep airborne concentrations low.
Personal Protection: Wear appropriate protective eyeglasses or chemical safety goggles. Wear
appropriate protective gloves and clothing to prevent skin exposure. A
respiratory protection program must be followed whenever workplace
conditions warrant a respirators use.
Flammability: Not flammable under conditions of use.
SAFE HANDLING INFORMATION
Storage and Transport: Wash thoroughly after handling. Remove contaminated clothing and wash
before reuse. Use with adequate ventilation. Avoid contact with skin and eyes.
Keep container tightly closed. Do not ingest or inhale. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep containers
tightly closed.
Spills and Disposal: Clean up spills immediately, observing precautions. Sweep up or absorb
material, then place into a suitable clean, dry, closed container for disposal.
Avoid generating dusty conditions. Provide ventilation.
Fire/Explosion Hazard: 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. Vapours may be heavier than air. They can
spread along the ground and collect in low or confined areas.
Use extinguishing media most appropriate for the surrounding fire. Use water
spray, dry chemical, carbon dioxide, or appropriate foam.
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Methyl orange
OTHER INFORMATION
Incompatibilities Strong oxidizing agents. Avoid excess heat.
(Materials to avoid)
Animal Toxicity Data: RTECS#:
Cas# 547-58-0:
DB63270000
LD50/LC50:
Cas# 547-58-0:
Oral, rat: LD50 = 60mg/kg
Mutagenicity:
Human mutation data is available. However, methyl orange produced negative
and inconclusive results in tests by the EPA Gentox Program.
No other data available.
The information published in this Material Safety Data Sheet has been compiled from data in various technical
publications. It is the user鈥檚 responsibility to determine the suitability of this information for adoption of necessary
safety precautions. We reserve the right to revise Material Safety Data Sheets as new information becomes available.
Copies may be made for non-profit use.
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