ProSciTech Safety Data Sheets ProSciTech Pty Ltd · proscitech.com.au

SAFETY DATA SHEET

Mayer's Haematoxylin

Version 1Last reviewed 27 February 2026Catalogue: 26173-03

1. Identification

Product Identifiers

Product Name
Mayer's Haematoxylin
Other Names
-
Product Number(s)
26173-03
CAS Number
-

Recommended use of the chemical and restriction on use

Laboratory use

Company Details

ProSciTech Pty Ltd
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

2. Hazards Identification

Classification of the substance or mixture

  • GHS08 Health hazard
  • Carcinogenicity 1B H350 May cause cancer.
  • GHS07
  • Acute toxicity - oral 4 H302 Harmful if swallowed.
  • Acute toxicity - dermal 4 H312 Harmful in contact with skin.
  • Acute toxicity - inhalation 4 H332 Harmful if inhaled.
  • Skin irritation 2 H315 Causes skin irritation.

Label Elements

Harmful / irritant
Harmful / irritant
Health hazard
Health hazard
Signal Words
None
Hazard Statement(s)
H350 May cause cancer.
Precautionary Statement(s)
  • P201 Obtain special instructions before use.
  • P202 Do not handle until all safety precautions have been read and understood.
  • P280 Wear protective gloves/protective clothing/eye protection/face protection.
  • P308±P313 IF exposed or concerned: Get medical advice/attention.
  • P405 Store locked up.
  • P501 Dispose of contents/container in accordance with local/regional/national/international regulations.

Primary route(s) of entry

Eye, skin and inhalation

Human Health

Inhalation
Harmful if inhaled.
Ingestion
Harmful if swallowed.
Eyes
Causes serious eye irritation.
Skin
Causes skin irritation.

Environment

Do not allow to enter sewers/ surface or ground water.

3. Composition / Information on Ingredients

NameCAS No.Content (w/w)Classification
chloral hydrate302-17-0>2.5-≤10%H301 - Acute toxicity, Oral (Category 3); H315 - Skin corrosion/irritation (Category 2); H319 - Serious eye damage/eye irritation (Category 2A)
Haematoxylin517-28-2≤0.1%H319 - Serious eye damage/eye irritation (Category 2A)

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
Immediately wash with water and soap and rinse thoroughly.
Eye Contact
Rinse opened eye for several minutes under running water.
Other Information
No further relevant information available.

5. Firefighting Measures

Suitable extinguishing equipment

Fire
Use fire fighting measures that suit the environment.
HAZCHEM
No further relevant information available.

Special protective equipment and precautions for fire fighters

Mouth respiratory protective device.

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures
Not required
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

7. Handling and Storage

Precautions for safe handling
  • Ensure good ventilation/exhaustion at the workplace.
  • Prevent formation of aerosols
Conditions for safe storage
Keep receptacle tightly sealed.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls
  • 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 skin.
  • Avoid contact with the eyes and skin.

Personal protective equipment

Eye and face protection
Goggles recommended during refilling.
Skin protection
Gloves and Goggles
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
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
Charactisitics
pH
at 20 °C (68 °F): 2.4
Vapour Pressure
at 20 °C (68 °F): 23 hPa (17.3 mm Hg)
Density
Not determined
Boiling Point
96 °C (204.8 °F)
Melting Point
Not determined
Solubility
Fully miscible
Specific Gravity of Density
Not determined
Flash Point
Not determined
Flammable (Explosive) Limits
Not determined
Ignition Temperature
Not determined
Formula
  • Solvent content:
  • Water: 89.7 %
  • VOC content: 0.00 %
  • 0.0 g/l / 0.00 lb/gal
  • Solids content: 5.1 %

10. Stability and Reactivity

Reactivity
No further relevant information available
Chemical stability
Stable under normal working conditions
Possibility of hazardous reactions
No dangerous reactions known
Conditions to avoid
No further relevant information available
Incompatible materials
No further relevant information available

11. Toxicological Information

Acute effects
  • LD/LC50 values that are relevant for classification:
  • 302-17-0 chloral hydrate
  • Oral LD50 479 mg/kg (rat)
  • Dermal LD50 3,030 mg/kg (rat)
Eye contact
Irritating effect
Skin contact
Irritant to skin and mucous membranes.
Ingestion
No sensitizing effects are known.
Inhalation
No sensitizing effects are known.
Toxicity and irritation
  • The product shows the following dangers according to internally approved calculation methods for preparations:
  • Harmful
  • Irritant

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
No further relevant information available.

13. Disposal Considerations

General information

  • Water hazard class 2 (Self-assessment): hazardous for water
  • Danger to drinking water if even small quantities leak into the ground.
  • Must not be disposed of together with household garbage. Do not allow product to reach sewage system

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
Void
Special precautions for users
Void
Additional information
Void

15. Regulatory Information

Poisons Schedule Number
No further relevant information available.
Other Information
  • TSCA (Toxic Substances Control Act):
  • 7732-18-5 Deionised Water, Reagent Grade A.C.S. ACTIVE
  • 302-17-0 chloral hydrate ACTIVE
  • 77-92-9 citric acid ACTIVE
  • 517-28-2 haematoxylin ACTIVE
  • 7681-55-2 Sodium iodate ACTIVE
  • Hazardous Air Pollutants
  • None of the ingredients is listed.
  • Proposition 65
  • Chemicals known to cause cancer:
  • 302-17-0 chloral hydrate
  • 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)
  • 302-17-0 chloral hydrate C, CBD
  • 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
27 February 2026
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.