Sodium Sulphate

CHEMICAL SUBSTANCE IDENTIFICATION

Chemical name                 

Sodium sulphate[1]

Synonyms                           

Sulfuric acid, sodium salt, Glauber's salt, Disodium sulfate decahydrate, Sodium Sulphate Anhydrous [1]

IUPAC name

disodium sulfate [1]

CAS No

7757-82-6

REACH registration number

EC No

Molecular formula              

Na₂O₄S [1]

Substance group/chemical family

Mono constituent substance/ Inorganic [1]

Appearance

Physical state

Odour

Form

Colour

Solid (100%) at 20°C and 1013 hPa [1]

Odourless (100%) [1]

Crystalline (47%), Powder (46%), Solid: particulate/powder (7%) [1]

USES AND HANDLING ISSUES

Relevant identified uses

This substance is used in the following products: paper chemicals and dyes, textile treatment products and dyes and leather treatment products.

This substance is used in the following areas: mining. This substance is used for the manufacture of: chemicals, textile, leather or fur, pulp, paper and paper products and plastic products.

This substance is used in the following activities or processes at workplace: transfer of chemicals, transfer of substance into small containers, closed batch processing in synthesis or formulation, closed, continuous processes with occasional controlled exposure, mixing in open batch processes and laboratory work. [1]

Handling considerations

Prevention statements

When handling this substance: do not get in eyes, on skin, or on clothing. [1]

PHYSICO-CHEMICAL PROPERTIES

Molecular weight                                  

Bulk density/Specific gravity

relative density: 2.7 g/cm³ @ 20 °C [1]

pH

Particle size

EC

Melting/Freezing point

800 - 888 °C [1]

Boiling point

Flash point

Flammability

Non flammable (100%)

Vapour density

Vapour pressure

Solubility in water

445.5 g/L @ 20 °C [1]

Solubility in organic solvents

Solubility in inorganic solvents

Hydrolysis

Ionicity in water

Surface tension

71 mN/m @ 1 000 mg/L @ 20 °C [1]

Dispersion properties

Explosiveness

Non-explosive (100%) [1]

Other properties

dynamic viscosity (in mPa s): 2.481 [1]

Stability and reactivity

Chemical stability

non-oxidising (100%) [1]

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

Release to the environment of this substance can occur from industrial use: in the production of articles, in processing aids at industrial sites, as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates) and formulation of mixtures. Other release to the environment of this substance is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use. [1]

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

LC50: 7960 mg/L (freshwater fish, 4 days) [1]

EC50/LC50: 1766 mg/L (freshwater invertebrates, 48 hours) [1]

EC50: 1.9 g/L (freshwater algae, 5 days) [1]

Terrestrial systems

Chronic toxicity (NOEC, LOEC)

Aquatic systems

EC10 / LC10 or NOEC: 1109 mg/L (marine invertebrates) [1]

EC10 or NOEC: 8000 mg/L (microorganisms, 37 days) [1]

Terrestrial systems

HUMAN HEALTH EFFECTS and PROTECTION

Routes of human exposures

General effects

Endocrine disruption

Mutagenicity

Carcinogenicity

Reprotoxicity

Teratogenicity

Skin, eye and respiratory irritations

Skin: No adverse effect observed (not irritating), Skin sensitisation: No adverse effect observed (not sensitising)

Eye: No adverse effect observed (not irritating) [1]

Metabolism:

absorption, distribution & excretion

No bioaccumulation potential [1]

Exposure limits

DNEL: 20 mg/m³ (workers, inhalation, long term, systemic effects, repeated dose toxicity) [1]

DNEL: 20 mg/m³ (workers, inhalation, long term, local effects, repeated dose toxicity) [1]

DNEL: 12 mg/m³ (general population, inhalation, long term, systemic effects, repeated dose toxicity) [1]

DNEL: 12 mg/m³ (general population, inhalation, long term, local effects, repeated dose toxicity) [1]

Drinking water MAC

Other information

Animal toxicity data

Acute toxicity (LD50)

LD50 2 000 mg/kg bw (oral route , rat),  [1]

LD50 5 989 mg/kg bw (oral route, mouse)

LD50 6 346 mL/kg bw (oral route, mouse)[1]

LC50 (4 h): 2.4 mg/L air (inhalation, rat), Study cannot be used for classification [1]

LC100 (60 min): 1.8 - 1.95 mg/m³ air (inhalation, rabbit), Study cannot be used for classification [1]

Chronic toxicity (NOEL, LOEL)

NOAEL (rat): 320 - 2 000 mg/kg diet (oral, repeated dose toxicity) [1]

NOEL (rat): 1 000 mg/kg bw/day (oral, repeated dose toxicity) [1]

ENVIRONMENTAL STANDARDS AND REGULATIONS

According to the notifications provided by companies to ECHA in REACH registrations no hazards have been classified.

According to the majority of notifications provided by companies to ECHA in CLP notifications no hazards have been classified  [1]

EINECS regulation

̵listed on EINECS (European INventory of Existing Commercial chemical Substances) List

OSHA regulations etc.

OTHER INFORMATION, SPECIAL REMARKS

Classification and proposed labelling with regard to toxicological data

CREATED, LAST UPDATE

Created

2019. 12. 06

Last update

2019. 12. 06

REFERENCES

[1] ECHA, Sodium sulphate, https://echa.europa.eu/hu/brief-profile/-/briefprofile/100.028.928, Accessed 2019. 12. 06