SAFETY DATA SHEET
Gold(III) chloride trihydrate
1. IDENTIFICATION
Product Identifiers
Product Name:
Gold(III) chloride trihydrate
Other Names:
Tetrachloroauric(III) acid; Hydrogen tetrachloroaurate(III)
Product Number(s):
520918., CMZ520918-10G, CMZ520918-1G, CMZ520918-25G
CAS Number:
16961-25-4
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 9444www.proscitech.com
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
Emergency Contact Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Corrosive to metals : Category 1
Acute toxicity (Oral) : Category 4
Skin corrosion/irritation : Sub-category 1B
Serious eye damage/eye irritation: Category 1
pecific target organ toxicity - repeated exposure (Oral): Category 2 (Kidney)
Short-term (acute) aquatic hazard: Category 2
Long-term (chronic) aquatic hazard: Category 2
Acute toxicity (Oral) : Category 4
Skin corrosion/irritation : Sub-category 1B
Serious eye damage/eye irritation: Category 1
pecific target organ toxicity - repeated exposure (Oral): Category 2 (Kidney)
Short-term (acute) aquatic hazard: Category 2
Long-term (chronic) aquatic hazard: Category 2
Label Elements
Signal Words
Danger
Hazard Statement(s)
H290 May be corrosive to metals.
H302 Harmful if swallowed.
H314 Causes severe skin burns and eye damage.
H373 May cause damage to organs (Kidney) through
prolonged or repeated exposure if swallowed.
H411 Toxic to aquatic life with long lasting effects.
H302 Harmful if swallowed.
H314 Causes severe skin burns and eye damage.
H373 May cause damage to organs (Kidney) through
prolonged or repeated exposure if swallowed.
H411 Toxic to aquatic life with long lasting effects.
Precautionary Statement(s)
P234 Keep only in original packaging.
P260 Do not breathe dust.
P264 Wash skin thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P273 Avoid release to the environment.
P280 Wear protective gloves/ protective clothing/ eye
protection/ face protection
P260 Do not breathe dust.
P264 Wash skin thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P273 Avoid release to the environment.
P280 Wear protective gloves/ protective clothing/ eye
protection/ face protection
Primary route(s) of entry
Inhalation of dust or aerosols
Skin contact
Eye contact
Skin contact
Eye contact
Human Health
Inhalation:
Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor
Ingestion:
Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Eyes:
Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/ doctor.
Skin:
Take off immediately all contaminated clothing. Rinse skin with water.
Wash contaminated clothing before reuse.
Wash contaminated clothing before reuse.
Environment
Absorb spillage to prevent material damage.
Collect spillage.
Storage:
Store locked up.
Store in a corrosion resistant container with a resistant inner liner.
Disposal:
Dispose of contents/ container to an approved waste disposal plant.
Collect spillage.
Storage:
Store locked up.
Store in a corrosion resistant container with a resistant inner liner.
Disposal:
Dispose of contents/ container to an approved waste disposal plant.
3. COMPOSITION/INFORMATION ON INGREDIENTS
Name
CAS No.
Content (w/w)
Classification
Tetrachloroauric acid trihydrate
16961-25-4
≥60 - ≤100%
Not Available
4. FIRST AID MEASURES
Ingestion
After swallowing: make victim drink water (two glasses at most), avoid vomiting (risk of perforation).
Call a physician immediately.
Do not attempt to neutralise.
Call a physician immediately.
Do not attempt to neutralise.
Inhalation
After inhalation: fresh air. Call in physician.
Skin Contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower.
Call a physician immediately.
Call a physician immediately.
Eye Contact
After eye contact: rinse out with plenty of water.
Immediately call in ophthalmologist.
Remove contact lenses.
Immediately call in ophthalmologist.
Remove contact lenses.
Other Information
First aiders need to protect themselves.
Show this safety data sheet to the doctor in attendance.
Show this safety data sheet to the doctor in attendance.
5. FIREFIGHTING MEASURES
Suitable extinguishing equipment
Suitable extinguishing media: Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.
Unsuitable extinguishing media: For this substance/mixture no limitations of extinguishing agents are given.
Hazardous combustion products: Hydrogen chloride gas
Specific extinguishing methods : Suppress (knock down) gases/vapours/mists with a water spray jet.
Prevent fire extinguishing water from contaminating surface water or the ground water system.
Unsuitable extinguishing media: For this substance/mixture no limitations of extinguishing agents are given.
Hazardous combustion products: Hydrogen chloride gas
Specific extinguishing methods : Suppress (knock down) gases/vapours/mists with a water spray jet.
Prevent fire extinguishing water from contaminating surface water or the ground water system.
HAZCHEM
Special protective equipment and precautions for fire fighters
Ambient fire may liberate hazardous vapours.
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Avoid inhalation of dusts.
Avoid substance contact.
Ensure adequate ventilation.
Evacuate the danger area, observe emergency procedures, consult an expert.
Advice for emergency responders: For personal protection see section 8.
Avoid substance contact.
Ensure adequate ventilation.
Evacuate the danger area, observe emergency procedures, consult an expert.
Advice for emergency responders: For personal protection see section 8.
Environmental precautions
Do not let product enter drains.
Methods and materials for containment and clean up
Cover drains. Collect, bind, and pump off spills.
Observe possible material restrictions (see sections 7 and 10).
Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts.
Observe possible material restrictions (see sections 7 and 10).
Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts.
7. HANDLING AND STORAGE
Precautions for safe handling
Hygiene measures : Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
Conditions for safe storage: No metal containers.
Conditions for safe storage: No metal containers.
Conditions for safe storage
Storage class : 8A, Combustible, corrosive hazardous materials
Recommended storage temperature: Recommended storage temperature see product label.
Further information on storage stability: Moisture sensitive. Light sensitive.
Packaging material: Suitable material: Poly Drum, Amber Glass Bottle/Jar.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Exposure Standards
Engineering controls
No data available
Personal protective equipment
Eye and face protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Tightly fitting safety goggles.
Tightly fitting safety goggles.
Skin protection
protective clothing
Body protection
Hand protection
Material : Nitrile rubber
Break through time : 480 min
Glove thickness : 0.11 mm
Protective index : Full contact
Manufacturer : KCL 741 Dermatril® L
Material : Nitrile rubber
Break through time : 480 min
Glove thickness : 0.11 mm
Protective index : Splash contact
Manufacturer : KCL 741 Dermatril® L
Remarks : This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN 16523-1 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D36124 Eichenzell, Internet: www.kcl.de).
Material : Nitrile rubber
Break through time : 480 min
Glove thickness : 0.11 mm
Protective index : Full contact
Manufacturer : KCL 741 Dermatril® L
Material : Nitrile rubber
Break through time : 480 min
Glove thickness : 0.11 mm
Protective index : Splash contact
Manufacturer : KCL 741 Dermatril® L
Remarks : This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN 16523-1 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D36124 Eichenzell, Internet: www.kcl.de).
Respiratory protection
required when dusts are generated.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.
9. PHYSICAL AND CHEMICAL PROPERTIES
General information
Appearance
Crystals with lumps
Odour
No data available
pH
No data available
Vapour Pressure
No data available
Density
No data available
Boiling Point
No data available
Melting Point
75 °C
Solubility
No data available
Specific Gravity of Density
No data available
Flash Point
No data available
Flammable (Explosive) Limits
No data available
Ignition Temperature
No data available
Formula
HAuCl₄·3H₂O, Molecular weight: 393.83 g/mol
10. STABILITY AND REACTIVITY
Reactivity
No data available.
Chemical stability
The product is chemically stable under standard ambient conditions (room temperature).
Possibility of hazardous reactions
Light.
Conditions to avoid
Exposure to moisture
Incompatible materials
Aluminium
Mild steel
Mild steel
11. TOXICOLOGICAL INFORMATION
Acute effects
LD50 Oral - Rat - male and female - > 464 mg/kg
(OECD Test Guideline 401)
Remarks: (anhydrous substance)
The value is given in analogy to the following substances: tetrachloroauric acid
Inhalation: No data available
Dermal: No data available
(OECD Test Guideline 401)
Remarks: (anhydrous substance)
The value is given in analogy to the following substances: tetrachloroauric acid
Inhalation: No data available
Dermal: No data available
Eye contact
Serious eye damage/eye irritation
Remarks: Causes serious eye damage.
(anhydrous substance)
The value is given in analogy to the following substances: tetrachloroauric acid
Remarks: Causes serious eye damage.
(anhydrous substance)
The value is given in analogy to the following substances: tetrachloroauric acid
Skin contact
Skin corrosion/irritation
Skin - Rabbit
Result: Causes burns. - 4 h
(OECD Test Guideline 404)
Remarks: (anhydrous substance)
The value is given in analogy to the following substances: tetrachloroauric acid
Skin - Rabbit
Result: Causes burns. - 4 h
(OECD Test Guideline 404)
Remarks: (anhydrous substance)
The value is given in analogy to the following substances: tetrachloroauric acid
Ingestion
Inhalation
No data available
Toxicity and irritation
12. ECOLOGICAL INFORMATION
Ecotoxicity
Persistence and degradability
Bioaccumulative potential
Other adverse effects
13. DISPOSAL CONSIDERATIONS
General information
14. TRANSPORT INFORMATION
ADG label required
HAZCHEM
UN Number
Proper shipping name
Transport hazard class
Void
Packing group
Environmental hazard
Special precautions for users
Additional information
15. REGULATORY INFORMATION
Poisons Schedule Number
Other Information
16. OTHER INFORMATION
SDS preparation date
30 July 2026
Comments
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.