SAFETY DATA SHEET
METANIL YELLOW, 0.25% SOLUTION
1. IDENTIFICATION
Product Identifiers
Product Name:
METANIL YELLOW, 0.25% SOLUTION
Other Names:
Nil
Product Number(s):
26328-02,
CAS Number:
Recommended use of the chemical and restriction on use
Where and restrictions (eg. Laboratory use.)
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
GHS07
Skin irritation 2 H315 Causes skin irritation.
Eye irritation 2A H319 Causes serious eye irritation.
Label Elements
Signal Words
Warning
Hazard Statement(s)
Causes skin irritation.
Causes serious eye irritation.
Precautionary Statement(s)
Wash thoroughly after handling.
Wear protective gloves / eye protection / face protection.
If on skin: Wash with plenty of water.
Specific treatment (see on this label)
Primary route(s) of entry
Skin contact (dermal absorption), inhilation if being sprayed.
Human Health
Inhalation:
May cause irritation to the eyes if inhaled as a mist.
Ingestion:
Nil
Eyes:
If on skin: Wash with plenty of water.
Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
If eye irritation persists: Get medical advice/attention.
Skin:
If skin irritation occurs: Get medical advice/attention.
Environment
Metanil Yellow does have environmental concerns, although a 0.25% laboratory solution poses a much lower risk than concentrated quantities. It should still be handled and disposed of responsibly.
3. COMPOSITION/INFORMATION ON INGREDIENTS
Name
CAS No.
Content (w/w)
Classification
sodium 3-(p-anilinophenylazo)benzenesulphonate
587-98-4
0.1-1%
Not Available
4. FIRST AID MEASURES
Ingestion
If symptoms persist consult doctor.
Inhalation
In case of unconsciousness place patient stably in side position for transportation.
Skin Contact
Immediately wash with water and soap and rinse thoroughly.
Eye Contact
Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.
Other Information
If symptoms persist consult doctor.
5. FIREFIGHTING MEASURES
Suitable extinguishing equipment
Use fire fighting measures that suit the environment
HAZCHEM
No further relevant information available.
Special protective equipment and precautions for fire fighters
No special measures required
6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Not required.
Environmental precautions
Dilute with plenty of water.
Methods and materials for containment and clean up
Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
Ensure adequate ventilation.

Protective Action Criteria for Chemicals
· PAC-1:
64-19-7 Acetic Acid Glacial 5 ppm
· PAC-2:
64-19-7 Acetic Acid Glacial 35 ppm
· PAC-3:
64-19-7 Acetic Acid Glacial 250 ppm
7. HANDLING AND STORAGE
Precautions for safe handling
Ensure good ventilation/exhaustion at the workplace.
Prevent formation of aerosols.
Conditions for safe storage
· Requirements to be met by storerooms and receptacles: No special requirements.
· Information about storage in one common storage facility: Not required.
· Further information about storage conditions: Keep receptacle tightly sealed.
· Specific end use(s) No further relevant information available.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Exposure Standards
Engineering controls
No further data; see section 7.

General protective and hygienic measures:
Keep away from foodstuffs, beverages and feed.
Immediately remove all soiled and contaminated clothing.
Wash hands before breaks and at the end of work.
Avoid contact with the eyes and skin.
Personal protective equipment
Eye and face protection
Tightly sealed goggles
Skin protection
As needed
Body protection
Protective gloves
The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the chemical mixture.
Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
· Material of gloves
The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer.
· Penetration time of glove material
The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.
Respiratory protection
In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use respiratory protective device that is independent of circulating air.
9. PHYSICAL AND CHEMICAL PROPERTIES
General information
Appearance
Liquid
Odour
Odourless
pH
Not determined.
Vapour Pressure
at 20 °C (68 °F): 23 hPa (17.3 mm Hg)
Density
at 20 °C (68 °F): 1 g/cm³ (8.345 lbs/gal)
Boiling Point
100 °C (212 °F)
Melting Point
0 °C (32 °F)
Solubility
Fully miscible
Specific Gravity of Density
Not determined.
Flash Point
Not determined.
Flammable (Explosive) Limits
Not determined.
Ignition Temperature
Not applicable.
Formula
Metanil Yellow: C₁₈H₁₄N₃NaO₃S
Solvent (if aqueous): H₂O
10. STABILITY AND REACTIVITY
Reactivity
No further relevant information available.
Chemical stability
No decomposition if used according to specifications.
Possibility of hazardous reactions
No dangerous reactions known.
Conditions to avoid
No further relevant information available.
Incompatible materials
No further relevant information available.
· Hazardous decomposition products: No dangerous decomposition products known.
11. TOXICOLOGICAL INFORMATION
Acute effects
Nil
Eye contact
Irritating effect
Skin contact
Irritant to skin and mucous membranes.
Ingestion
Nil
Inhalation
Nil
Toxicity and irritation
No interactive effects between components are known.

Carcinogenic categories
· IARC (International Agency for Research on Cancer)
None of the ingredients is listed.
· NTP (National Toxicology Program)
None of the ingredients is listed.
· OSHA-Ca (Occupational Safety Health Administration)
None of the ingredients is listed
12. ECOLOGICAL INFORMATION
Ecotoxicity
No further relevant information available.
Persistence and degradability
No further relevant information available.
Bioaccumulative potential
No further relevant information available.
Other adverse effects
Not hazardous for water.
13. DISPOSAL CONSIDERATIONS
General information
Waste treatment methods
· Recommendation:
Must not be disposed of together with household garbage. Do not allow product to reach sewage system.
· Uncleaned packagings:
· Recommendation: Disposal must be made according to official regulations.
· Recommended cleansing agent: Water, if necessary with cleansing agents.
14. TRANSPORT INFORMATION
ADG label required
HAZCHEM
No further relevant information available.

UN Number
Void
Proper shipping name
Void
Transport hazard class
Void
Packing group
Void
Environmental hazard
Not applicable
Special precautions for users
Not applicable
Additional information
Not applicable
15. REGULATORY INFORMATION
Poisons Schedule Number
No further relevant information available.
Other Information
Sara
· Section 355 (extremely hazardous substances):
None of the ingredients is listed.
· Section 313 (Specific toxic chemical listings):
None of the ingredients is listed.
· TSCA (Toxic Substances Control Act):
All components have the value ACTIVE.
· Hazardous Air Pollutants
None of the ingredients is listed.
· Proposition 65
· Chemicals known to cause cancer: None of the ingredients is listed.
· Chemicals known to cause reproductive toxicity for females: None of the ingredients is listed.
· Chemicals known to cause reproductive toxicity for males: None of the ingredients is listed.
· Chemicals known to cause developmental toxicity: None of the ingredients is listed.
· Carcinogenic categories
· EPA (Environmental Protection Agency): None of the ingredients is listed.
· TLV (Threshold Limit Value): None of the ingredients is listed.
· NIOSH-Ca (National Institute for Occupational Safety and Health): None of the ingredients is listed.
16. OTHER INFORMATION
SDS preparation date
15 July 2026
Comments
Abbreviations and acronyms:
ADR: Accord relatif au transport international des marchandises dangereuses par route (European Agreement Concerning the International
Carriage of Dangerous Goods by Road)
IMDG: International Maritime Code for Dangerous Goods
DOT: US Department of Transportation
IATA: International Air Transport Association
EINECS: European Inventory of Existing Commercial Chemical Substances
ELINCS: European List of Notified Chemical Substances
CAS: Chemical Abstracts Service (division of the American Chemical Society)
NFPA: National Fire Protection Association (USA)
HMIS: Hazardous Materials Identification System (USA)
VOC: Volatile Organic Compounds (USA, EU)
PBT: Persistent, Bioaccumulative and Toxic
vPvB: very Persistent and very Bioaccumulative
NIOSH: National Institute for Occupational Safety
OSHA: Occupational Safety Health
TLV: Threshold Limit Value
PEL: Permissible Exposure Limit
REL: Recommended Exposure Limit
Skin irritation 2: Skin corrosion/irritation - Category 2
Eye irritation 2A: Serious eye damage/eye irritation - Category 2A
References
EMS SDS "METANIL YELLOW, 0.25% SOLUTION" 27/01/2023 https://www.emsdiasum.com/docs/technical/msds/26328-02.pdf
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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