Sc(OH)3

Scandium hydroxide

Source of the photo: 
https://chem.nlm.nih.gov/chemidplus/rn/17674-34-9
Author of the description: 
Vaszita Emese
Sc(OH)3

CHEMICAL SUBSTANCE DATASHEET

 

CHEMICAL SUBSTANCE IDENTIFICATION

Chemical name                 

 Scandium hydroxide

Synonyms                           

Scandium trihydroxide 

IUPAC name

 scandium(3+);trihydroxide [1]

CAS No

 17674-34-9

REACH registration number

 on EC list ( REACH pre-registration)

EC No

 241-658-0 

Molecular formula              

 H3O3Sc

Substance group/chemical family

 

Appearance

Physical state

Odour

Form

    Colour

 

 powder [4]

 

 white [4]

USES AND HANDLING ISSUES

Relevant identified uses

Scandium Hydroxide is applied in optical coating, catalyst, electronic ceramics and laser industry. [4]

Handling considerations

 

 

PHYSICO-CHEMICAL PROPERTIES

Molecular weight                                  

  95.977 g/mol [1]

Bulk density/Specific gravity

 

pH

 

Particle size

 

EC

 

Melting point

 

Boiling point

 100 °C at 760 mmHg [3]

Flash point

 

Flammability

 

Vapour density

 

Vapour pressure

 24.5 mmHg at 25°C [3]

Solubility in water

 

Solubility in organic solvents

 

Solubility in inorganic solvents

 

Hydrolysis

 

Ionicity in water

 

Surface tension

 

Dispersion properties

 

Specific surface

 

Stability and reactivity

Chemical stability

 

Reactivity hazards

 

Corrosivity

 

Polimerization

 

Incompatibility with various substances

 

Special remarks on reactivity

 

Physical, chemical and biological coefficient

Koc

 

Kow

 

pKa

 

log Kp

 

Henry-constant

 

ENVIRONMENTAL FATE AND BEHAVIOUR

Artificial pollution sources

 

General terrestrial fate

 

General aquatic fate

 

General atmospheric fate

 

General persistence and degradability

 

Abiotic degradation and metabolites

 

Biodegradation and metabolites

 

Bioconcentration

 

Volatilization

 

Photolysis

 

Hydrolysis

 

Soil adsorption and mobility

 

ENVIRONMENTAL CONCENTRATIONS

Measured data

 

 

 

ECOTOXICOLOGICAL INFORMATION

General adverse effects on ecosystem

Acute toxicity (LC50, EC50)

Aquatic systems

 

Terrestrial systems

 

Chronic toxicity (NOEC, LOEC)

Aquatic systems

 

Terrestrial systems

 

HUMAN HEALTH EFFECTS and PROTECTION

Routes of human exposures

 

General effects

 

Endocrine disruption

 

Mutagenicity

 

Carcinogenicity

 

Reprotoxicity

 

Teratogenicity

 

Skin, eye and respiratory irritations

 

Metabolism:

absorption, distribution & excretion

 

Exposure limits

 

Drinking water MAC

 

Other information

 

 

 

Animal toxicity data

Acute toxicity (LD50)

 

Chronic toxicity (NOEL, LOEL)

 

ENVIRONMENTAL STANDARDS AND REGULATIONS

EINECS regulation

̵

OSHA regulations etc.

 

 

 

OTHER INFORMATION, SPECIAL REMARKS

Classification and proposed labelling with regard to toxicological data

 According to the majority of notifications provided by companies to ECHA in CLP notifications no hazards have been classified. [2]

 

 

CREATED, LAST UPDATE

Created

2018. 10. 30.

Last update

2018. 10. 31.

REFERENCES

[1] Pubchem https://pubchem.ncbi.nlm.nih.gov/compound/Scandium_hydroxide#section=3D-Status, Accessed 2018.10.30

[2]ECHA, Substance information, Scandium trihydroxide, https://echa.europa.eu/substance-information/-/substanceinfo/100.037.855, Accessed 2018.10.30

[3]LookChem, Scandium hydroxide https://www.lookchem.com/Scandium-hydroxide/, Accessed 2018.10.30

[4] Prochem, Scandium hydroxide. http://www.prichem.com/product/scandium-hydroxide.htm, Accessed 2018.10.30