Pigments & Colorants
REACH
Cadmium sulfide
CAS Number
1306-23-6
EC Number
215-147-8
What is Cadmium sulfide?
Cadmium sulfide (CAS 1306-23-6), commercially recognized as Cadmium Yellow and historically marketed as Capsebon, is an inorganic pigment delivering intense yellow-to-orange hues.
Where is Cadmium sulfide used?
- Plastics and polymer compounding: stable coloration in engineering resins processed at elevated temperatures
- Coatings: industrial and protective finishes requiring long-term color retention
- Electronics: photoconductive material in photoresistors and thin-film semiconductor layers
- Printing inks for specialty packaging: opacity and color fastness
- It is used where organic pigments cannot withstand harsh processing conditions.
Good to know: Most organic colorants degrade under these conditions, making this inorganic compound essential for high-heat manufacturing. Buyers sourcing for regulated applications should confirm compliance with relevant heavy metal restrictions applicable in their target market.
Commercial specifications
- Particle size distribution and tinting strength
- Purity levels specified for batch consistency
Other Names (Synonyms)
Cadmium sulphide|Cadmium Yellow|Capsebon|Orange cadmium|Cadmopur Yellow|Jaune Brilliant|Cadmium sulfide (CdS)|Cadmium Golden 366
What are the physical properties of Cadmium sulfide?
Melting Point 980 °C (sublm)
Boiling Point 980°C (estimate)
Density 4.8 g/cm³
Flash Point 4°C
Appearance Cadmium sulfide is an odorless, crystalline, lemon yellow to orange solid.
Color Yellow to orange
Form powder
Water Solubility Insoluble
How is Cadmium sulfide classified and handled safely? Learn More
Danger
GHS07· Irritant GHS08· Health Hazard GHS06· Toxic GHS09· Environmental Hazard
Hazard Statements
H301 Toxic if swallowed
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Which trade and regulatory codes apply to Cadmium sulfide?
UN Number 3077
ADR Class 9
Packing Group III
Storage Class 6.1D - Non-combustible acute toxic Cat.3
toxic hazardous materials or hazardous materials causing chronic effects
WGK (Germany) 3