SAFETY DATA SHEET
Methyl Orange
1. IDENTIFICATION
Product Identifiers
Product Name:
Methyl Orange
Other Names:
4?[4?(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt, Acid Orange 52, Helianthin, Orange III
Product Number(s):
C118, C1181, C1185
CAS Number:
547?58?0
Recommended use of the chemical and restriction on use
Laboratory chemicals.
Company Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia

(07) 4773 9444
www.proscitech.com
Emergency Contact Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia

(07) 4773 9444
www.proscitech.com
2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Acute toxicity, Oral (Category 2)
Label Elements
Signal Words
Danger
Hazard Statement(s)
H301: Toxic if swallowed.
Precautionary Statement(s)
P264: Wash skin thoroughly after handling
P270: Do not drink, eat, smoke, when using this product.
P405: Store locked up.
P330: Rinse mouth
P301 + P310: If Swallowed: Immediately Call Poison Center or doctor/physician
P321: Specific treatment (see supplemental first aid instructions)
P501: Dispose of contents/container to an approved waste disposal plant.
Primary route(s) of entry
Human Health
Inhalation:
Harmful by inhalation.
Ingestion:
Harmful if swallowed.
Eyes:
Risk of serious damage to eyes.
Skin:
Harmful in contact with skin.
Environment
3. COMPOSITION/INFORMATION ON INGREDIENTS
Name
CAS No.
Content (w/w)
Classification
Sodium 4?(4?dimethylaminophenylazo)benzenesulphonate
547?58?0
100%
?
4. FIRST AID MEASURES
Ingestion
Do not induce vomiting without medical advice. Rinse with water. Consult physician.
Inhalation
Move to fresh air. Consult a physician.
Skin Contact
Rinse with plenty of soap & water and seek medical advice.
Eye Contact
Rinse immediately with plenty of water and seek medical advice.
Other Information
Treat symptomatically and supportively.
5. FIREFIGHTING MEASURES
Suitable extinguishing equipment
Use water spray, dry chemical, carbon dioxide, or appropriate foam.
HAZCHEM
Not available.
Special protective equipment and precautions for fire fighters
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. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Special Hazards: Carbon, nitrogen, sulphur & sodium oxides.
6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
No further information available.
Environmental precautions
Methods and materials for containment and clean up
Clean up spills immediately, observing precautions in the Protective Equipment Section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
7. HANDLING AND STORAGE
Precautions for safe handling
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.
Conditions for safe storage
Store in a cool, dry, well?ventilated area away from incompatible substances. Keep containers tightly closed.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Exposure Standards
Engineering controls
Use adequate ventilation to keep airborne concentrations low.
Personal protective equipment
Eye and face protection
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 protection
Wear appropriate protective gloves to prevent skin exposure. 0.11mm thick nitrile.
Body protection
Wear appropriate protective clothing to prevent skin exposure.
Respiratory protection
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirators use.
9. PHYSICAL AND CHEMICAL PROPERTIES
General information
Appearance
Solid. Orange.
Odour
Odourless.
pH
Not available.
Vapour Pressure
Negligible.
Density
No further information available.
Boiling Point
No further information available.
Melting Point
No further information available.
Solubility
No further information available.
Specific Gravity of Density
No further information available.
Flash Point
No further information available.
Flammable (Explosive) Limits
No further information available.
Ignition Temperature
No further information available.
Formula
No further information available.
10. STABILITY AND REACTIVITY
Reactivity
No further information available.
Chemical stability
Stable under normal temperatures and pressures.
Possibility of hazardous reactions
See section 5
Conditions to avoid
Incompatible materials, excess heat.
Incompatible materials
Strong oxidising agents.
11. TOXICOLOGICAL INFORMATION
Acute effects
No further information available.
Eye contact
No further information available.
Skin contact
No further information available.
Ingestion
No further information available.
Inhalation
No further information available.
Toxicity and irritation
RTECS#: DB6327000 LD50/LC50: Oral, rat: LD50 = 60 mg/kg;
Carcinogenicity: CAS# 547?58?0: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. Mutagenicity: Histidine reversion
12. ECOLOGICAL INFORMATION
Ecotoxicity
No further information available.
Persistence and degradability
No further information available.
Bioaccumulative potential
No further information available.
Other adverse effects
No further relevant information available.
13. DISPOSAL CONSIDERATIONS
General information
Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification. RCRA P?Series: None listed. RCRA U?Series: None listed.
14. TRANSPORT INFORMATION
ADG label required
HAZCHEM
Not available.

UN Number
UN3143
Proper shipping name
Dye, solid, toxic, n.o.s. (Sodium 4?(4?dimethylaminophenylazo)benzenesulphonate)
Transport hazard class
6
Packing group
PG III
Environmental hazard
Not regulated.
Special precautions for users
No further information available.
Additional information
ERG 151
15. REGULATORY INFORMATION
Poisons Schedule Number
No further information available.
Other Information
No further information available.
16. OTHER INFORMATION
SDS preparation date
6 October 2021
Comments
This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.
This Safety Data Sheet (SDS) has been prepared in compliance with the Preparation of Safety Data Sheets for Hazardous Chemicals Code of Practice February 2016. It is the user's responsibility to determine the suitability of this information for adoption of necessary safety precautions. The information published in this SDS has been compiled from the publications listed in Section 16: to the best of our ability and knowledge these publications are considered accurate. We reserve the right to revise Safety Data Sheets as new information becomes available. Copies may be made for non-profit use.

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