Safety Data Sheets / Gill's Modified EA Counterstain
Safety Data Sheet
Gill's Modified EA Counterstain
1. Identification
Product Identifiers
- Product Name
- Gill's Modified EA Counterstain
- Other Names
- Not available
- Product Number(s)
- 26050-05, 26050-06, EMS26050-05, EMS26050-06
- CAS Number
- Not available.
Recommended use of the chemical and restriction on use
Laboratory chemicals, part of the <strong data-start="275" data-end="313">Papanicolaou (Pap) staining method. Their role is to provide contrast after nuclear staining
Company Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au
Emergency Contact Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au
2. Hazards Identification
Classification of the substance or mixture
- GHS02 Flame
- Substances and mixtures which, in contact with water, emit flammable gases 1 H260 In contact with water releases flammable gases, which may ignite spontaneously.
- GHS08 Health hazard
- Carcinogenicity 1A H350 May cause cancer. Specific target organ toxicity (single exposure) 2 H371 May cause damage to the central nervous system and the visual organs.
Label Elements


- Signal Words
- None
- Hazard Statement(s)
- Hazard-determining components of labelling:
- Ethyl alcohol
- Methyl Alcohol
- In contact with water releases flammable gases which may ignite spontaneously.
- May cause cancer.
- May cause damage to the central nervous system and the visual organs.
- Precautionary Statement(s)
- Obtain special instructions before use.
- Do not handle until all safety precautions have been read and understood.
- Keep away from any possible contact with water, because of violent reaction and possible flash fire.
- Handle and store contents under inert gas. Protect from moisture.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Wash thoroughly after handling.
- Do not eat, drink, or smoke when using this product.
- Wear protective gloves/protective clothing, eye protection/face protection.
- If exposed or concerned: Get medical advice/attention.
Primary route(s) of entry
- Primart source: Skin contact
- Secondary Source: Inhalation, eye contact.
Human Health
- Inhalation
- Not available.
- Ingestion
- Not available.
- Eyes
- Not available.
- Skin
- Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
Environment
- In case of fire: Use CO₂, sand, extinguishing powder for extinction.
- Store in a dry place. Store in a closed container.
- Store locked up.
- Dispose of contents/container in accordance with local/regional/national/international regulations.
3. Composition / Information on Ingredients
| Name | CAS No. | Content (w/w) | Classification |
|---|---|---|---|
| Ethyl alcohol | 64-17-5 | 80-100% | Not Available |
| Methyl Alcohol | 67-56-1 | 1-5% | Not Available |
| disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate | 17372-87-1 | 0.1-1% | Not Available |
4. First Aid Measures
- Ingestion
- If symptoms persist consult doctor.
- Inhalation
- Supply fresh air. If required, provide artificial respiration. Keep patient warm. Consult doctor if symptoms persist.
- In case of unconsciousness place patient stably in side position for transportation.
- Skin Contact
- Generally the product does not irritate the skin.
- Eye Contact
- Rinse opened eye for several minutes under running water.
- Other Information
- Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident.
5. Firefighting Measures
Suitable extinguishing equipment
- Fire
- Use fire extinguishing methods suitable to surrounding conditions.
- For safety reasons unsuitable extinguishing agents: Water
- HAZCHEM
- For safety reasons unsuitable extinguishing agents: Water.
Special protective equipment and precautions for fire fighters
Mouth respiratory protective device.
6. Accidental Release Measures
- Personal precautions, protective equipment and emergency procedures
- Wear protective equipment. Keep unprotected persons away.
- Environmental precautions
- Dilute with plenty of water.
- Do not allow to enter sewers/surface or ground water.
- Methods and materials for containment and clean up
- Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
- Dispose contaminated material as waste according to item 13.
- Ensure adequate ventilation.
- Do not flush with water or aqueous cleansing agents.
- Protective Action Criteria for Chemicals
- PAC-1:
- 64-17-5 Ethyl alcohol 1,800 ppm
- 67-56-1 Methyl Alcohol 530 ppm
- PAC-2:
- 64-17-5 Ethyl alcohol 3300* ppm
- 67-56-1 Methyl Alcohol 2,100 ppm
- PAC-3:
- 64-17-5 Ethyl alcohol 15000* ppm
- 67-56-1 Methyl Alcohol 7200* ppm
7. Handling and Storage
- Precautions for safe handling
- Ensure good ventilation/exhaustion at the workplace.
- Prevent formation of aerosols.
- Information about protection against explosions and fires: Keep ignition sources away - Do not smoke.
- 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.
- Store in cool, dry conditions in well sealed receptacles.
- Specific end use(s) No further relevant information available.
8. Exposure Controls / Personal Protection
Exposure Standards
| Material | TWA ppm | TWA mg/m³ | STEL ppm | STEL mg/m³ |
|---|---|---|---|---|
| 64-17-5 Ethyl alcohol | 1000 ppm | 1900 mg/m³ | 1000 ppm | 1900 mg/m³ |
| 67-56-1 Methyl Alcohol | 200 ppm | 260 mg/m³ | 250 ppm | 325 mg/m³ |
- Engineering controls
- Keep away from foodstuffs, beverages and feed.
- Wash hands before breaks and at the end of work.
Personal protective equipment
- Eye and face protection
- Goggles recommended during refilling.
- Skin protection
- 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. As the product is a preparation of several substances, the resistance of the glove material can not be calculated in advance and has therefore to be checked prior to the application.
- 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.
- Body protection
- Protective clothing.
- Respiratory protection
- In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use self-contained respiratory protective device.
9. Physical and Chemical Properties
General information
- Appearance
- Liquid coloured according to product specification.
- Odour
- Alcohol-like
- pH
- 2.5 at 20 °C (68 °F)
- Vapour Pressure
- 59hPa
- Density
- Not determined
- Boiling Point
- Undetermined
- Melting Point
- Undetermined
- Solubility
- Fully miscible
- Specific Gravity of Density
- Not determined
- Flash Point
- Not applicable
- Flammable (Explosive) Limits
- Lower: 3.5 Vol%
- Upper: 15 Vol%
- Ignition Temperature
- 425 °C
- Formula
- Not available
10. Stability and Reactivity
- Reactivity
- No further relevant information available.
- Chemical stability
- No decomposition if used according to specifications.
- Possibility of hazardous reactions
- Contact with water releases flammable gases.
- Conditions to avoid
- No further relevant information available.
- Incompatible materials
- No further relevant information available.
11. Toxicological Information
- Acute effects
- 67-56-1 Methyl Alcohol
- Oral LD50 5628 mg/kg (rat)
- Dermal LD50 15800 mg/kg (rabbit)
- Eye contact
- No irritating effect.
- Skin contact
- No irritant effect.
- Ingestion
- Not available.
- Inhalation
- No sensitising effects known.
- Toxicity and irritation
- The product shows the following dangers according to internally approved calculation methods for preparations: Harmful
- Interactive effects No interactive effects between components are known.
- Carcinogenic categories
- IARC (International Agency for Research on Cancer)
- 64-17-5 Ethyl alcohol 1
- 5141-20-8 Light Green SF Yellowish 3
- NTP (National Toxicology Program)
- None of the ingredients is listed.
- OSHA-Ca (Occupational Safety Health Administration)
- None of the ingredients is listed.
- Alternative sources for toxicological information
- No non-standard sources for toxicological information where used
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
- Water hazard class 1: slightly hazardous for water.
- Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.
13. Disposal Considerations
General information
- Must not be disposed together with household garbage. Do not allow product to reach sewage system.
- Disposal must be made according to official regulations.
- Recommended cleansing agents: Water, if necessary together with cleansing agents.
14. Transport Information
ADG label required


- HAZCHEM
- For safety reasons unsuitable extinguishing agents: Water.
- UN Number
- UN1987
- Proper shipping name
- DOT Alcohols, n.o.s.
- ADR 1987 ALCOHOLS, N.O.S.
- IMDG ALCOHOLS, N.O.S., MARINE POLLUTANT
- IATA ALCOHOLS, N.O.S.
- Transport hazard class
- Class 3 Flammable liquids.
- Label 3
- Packing group
- II
- Environmental hazard
- Marine pollutant: Yes (DOT)
- Symbol (fish and tree)
- Special marking (ADR): Symbol (fish and tree)
- Special precautions for users
- Warning: Flammable liquids.
- Additional information
- Not available
15. Regulatory Information
- Poisons Schedule Number
- 67-56-1 Methyl Alcohol S5, S6
- Other Information
- Sara
- Section 355 (extremely hazardous substances):
- None of the ingredients is listed.
- Section 313 (Specific toxic chemical listings): 67-56-1 Methyl Alcohol
- TSCA (Toxic Substances Control Act): 64-17-5 Ethyl alcohol ACTIVE
- 67-56-1 Methyl Alcohol ACTIVE
- 17372-87-1 disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate ACTIVE
- 10114-58-6 1,3-bis(2,3-diaminophenylazo)benzenehydrochloride ACTIVE
- 5141-20-8 Light Green SF Yellowish ACTIVE
- Hazardous Air Pollutants
- 67-56-1 Methyl Alcohol
- 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:
- 64-17-5 Ethyl alcohol
- 67-56-1 Methyl Alcohol
- Carcinogenic categories
- EPA (Environmental Protection Agency)
- None of the ingredients is listed.
- TLV (Threshold Limit Value)
- 64-17-5 Ethyl alcohol A3
- NIOSH-Ca (National Institute for Occupational Safety and Health)
- None of the ingredients is listed.
- GHS label elements The product is classified and labeled according to the Globally Harmonized System (GHS).
16. Other Information
- SDS preparation date
- 24 April 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)
- LC50: Lethal concentration, 50 percent
- LD50: Lethal dose, 50 percent
- 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
- BEI: Biological Exposure Limit
- Substances and mixtures which, in contact with water, emit flammable gases 1: Substances and mixtures which in contact with water emit
- flammable gases - Category 1
- Carcinogenicity 1A: Carcinogenicity - Category 1A
- Specific target organ toxicity (single exposure) 2: Specific target organ toxicity (single exposure) - Category 2
- References
- EMS SDS EA Counterstain, Gill's Modified. 04/07/2022 https://www.emsdiasum.com/docs/technical/msds/26050-05.pdf
