ETUI – European Trade Union Institute Fundación 1º de Mayo
ISTAS – Institut Sindical de Treball, Ambient i Salut

RISCTOX Database

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Identification

Name:
sulphur dioxide
Synonyms:
  • bisulfito
  • anhidrido sulfuroso
CAS:
7446-09-5
EC/EINECS:
231-195-2
Molecular Formula:
O2S
International Chemical Safety Card (ICSC):
0074
Uses:
bleaching agent additive preservative molding sand dehydrating

CLASSIFICATION AND LABELLING (Regulation 1272/2008)

Symbols

  • GHS04

    Gases under pressure

  • GHS05

    Corrosive to metals

  • GHS06

    Acute toxicity (oral, dermal, inhalation)

Signal word

Danger

H Phrases

  • H370 : Causes damage to organs

    Acute Tox. (Cat. 3) : Acute toxicity

  • H335 : May cause respiratory irritation

    STOT SE (Cat. 1) : Specific target organ toxicity - single exposure

  • H331 : Toxic if inhaled

    Press. Gas : Gases under pressure

  • H314 : Causes severe skin burns and eye damage

    Skin Corr. (Cat. 1B) : Skin corrosion/irritation

Notes

  • R.1272-Note U
Labelling
Concentration Labelling
C >= 20 % T; R23
5 % <= C < 20 % Xn; R20
Inhalation ATE= 1000 ppmV (gases)

Specific health risks

According to IARC ?

Substances classified as carcinogens or mutagens Category 2 under the CLP Regulation (GHS), bearing H351 and/or H341 phrases. These are substances suspected of causing cancer or heritable genetic mutations in humans.

IARC Group
Grupo 3
IARC Volume
(VOL. 54; 1992)
IARC Notes
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Occupational Exposure Limits (OEL) ?

Daily exposure limit values (VLA-ED) published by the Spanish National Institute of Safety and Health at Work (INSST). They represent the average concentration of a chemical agent in the worker's breathing zone, measured or calculated in a time-weighted manner for an 8-hour daily working period. (https://www.insst.es/valores-limites-de-exposicion)

OEL Data
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Specific environmental risks

Air quality ?

Atmospheric pollutants that negatively affect air quality. Includes compounds contributing to tropospheric ozone formation, suspended particulate matter (PM), acid rain or other ambient air pollution phenomena.

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Atmospheric emissions ?

Substances subject to atmospheric emission limitations under the Industrial Emissions Directive (2010/75/EU) and its Spanish transposition. Includes pollutants regulated in industrial installation emission permits and best available technique reference documents (BAT/BREF).

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Environmental regulations

LPCIC (EPER)

Priority substances and specific pollutants within the EU water policy framework, established by the Water Framework Directive (2000/60/EC) and the Priority Substances Directive (2008/105/EC and amendments). Substances posing significant risk to European surface waters and subject to Environmental Quality Standards (EQS).

EPER Water
EPER Air
1
EPER Soil
List
EPER Air ?

Substances from List 2 of Annex III of the IPPC Directive (integrated into the Industrial Emissions Directive 2010/75/EU). Pollutants that may affect surface and groundwater bodies and must be considered in the integrated environmental authorisation of industrial installations.

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Restriction/prohibition regulations

Substances under PACT evaluation ?

Substances under active regulatory monitoring through ECHA's PACT (Public Activities Coordination Tool). Allows tracking which regulatory authorities are examining a substance and what potential regulatory actions are being considered (restriction, SVHC identification, harmonised classification, etc.).

Member State
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Activity
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Last update
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Scope
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Banned biocides ?

Active substances whose approval for biocidal use has been denied or not renewed under Regulation (EU) No 528/2012 on biocidal products. They may not be placed on the market or used as active substances in biocidal products in the European Union.

Source
Reglamento (CE) 1849/2006
Exemptions
2008/01/03
Exemptions
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Major accident hazards (Seveso) ?

Hazardous substances listed in Annex I of the Seveso III Directive (Directive 2012/18/EU), transposed in Spain by Royal Decree 840/2015. Their presence in industrial establishments in quantities equal to or above established thresholds triggers obligations to implement major accident risk control measures.

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