GHS Classification Result

Chemical Name：Selenious acid
CAS：7783-00-8

Result：
ID: 429
Classifier: Inter-ministerial Committee on GHS
Year Classified: FY2006
Reference Manual: GHS Classification Manual （10 Feb, 2006）

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives Not applicable - - - - Containing no chemical groups with explosive properties
2 Flammable gases （including chemically unstable gases） Not applicable - - - - Classified as "solid" according to GHS definition
3 Aerosols Not applicable - - - - Not aerosol products
4 Oxidizing gases Not applicable - - - - Classified as "solid" according to GHS definition
5 Gases under pressure Not applicable - - - - Classified as "solid" according to GHS definition
6 Flammable liquids Not applicable - - - - Classified as "solid" according to GHS definition
7 Flammable solids Not classified - - - - Selenium dioxide (SeO2), the anhydride of selenious acid, is classified as non-flammable according to ICSC (2004)
8 Self-reactive substances and mixtures Not applicable - - - - Containing no chemical groups with explosive or self-reactive properties
9 Pyrophoric liquids Not applicable - - - - Classified as "solid" according to GHS definition
10 Pyrophoric solids Not classified - - - - Selenium dioxide (SeO2), the anhydride of selenious acid, is classified as non-flammable according to ICSC (2004)
11 Self-heating substances and mixtures Not classified - - - - Selenium dioxide (SeO2), the anhydride of selenious acid, is classified as non-flammable according to ICSC (2004)
12 Substances and mixtures which, in contact with water, emit flammable gases Not classified - - - - Stable to water (water solubility: 167g/100cc (20degC), HSDB (2006))
13 Oxidizing liquids Not applicable - - - - Classified as "solid" according to GHS definition
14 Oxidizing solids Classification not possible - - - - Classification not possible due to lack of data, though being inorganic compounds containing oxygen
15 Organic peroxides Not applicable - - - - Not organic compounds
16 Corrosive to metals Classification not possible - - - - Test methods applicable to solid substances are not available

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity （Oral） Classification not possible - - - - Insufficient data available
1 Acute toxicity （Dermal） Classification not possible - - - - No data available
1 Acute toxicity （Inhalation: Gases） Not applicable - - - - Due to the fact that the substance is "solid" according to the GHS definition and inhalation of its gas is not expected.
1 Acute toxicity （Inhalation: Vapours） Classification not possible - - - - No data available
1 Acute toxicity （Inhalation: Dusts and mists） Classification not possible - - - - No data available
2 Skin corrosion/irritation Category 1A-1C Danger H314: Causes severe skin burns and eye damage P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353: IF ON SKIN （or hair）: Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P321: Specific treatment （see ... on this label）.
P363: Wash contaminated clothing before reuse.
P405: Store locked up.
P501: Dispose of contents/container to ... 		Based on the description in EHC 58 (1986) of the human health effects: "Selenious acid, which is readily deliquescent, burns the skin when in contact with moisture on the skin from sweating." The substance is thus considered corrosive to the skin, though the severity of the effects is unknown. Although classified into Category 1A-1C, it should be placed in Category 1A from the viewpoint of safety if further subclassification is needed.
3 Serious eye damage/eye irritation Category 1 Danger H318: Causes serious eye damage P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician. 		Based on the description in ICSC (J) (2000) of the human health effects: "Corrosive to the eye, skin and respiratory tract."
4 Respiratory sensitization Classification not possible - - - - No data available
4 Skin sensitization Classification not possible - - - - No data available
5 Germ cell mutagenicity Classification not possible - - - - No data available As for the health hazards, refer to "ID1063, Sodium Selenite, CAS: 10102-18-8."
6 Carcinogenicity Not classified - - - - Due to the fact that the substance is classified as Category D by EPA (1993), Group 3 (SELENIUM AND SELENIUM COMPOUNDS) by IARC (1987).
7 Reproductive toxicity Classification not possible - - - - Classification not possible in the absence of data on reproductive toxicity. The results of teratogenicity studies with rats, mice, rabbits, hamsters, and crab-eating macaques suggest no evidence of malformation up to doses inducing parental toxicity, described in CERI Hazard Data 2001-39(2) (2002). As for the health hazards, refer to "ID1063, Sodium Selenite, CAS: 10102-18-8."
8 Specific target organ toxicity - Single exposure Classification not possible - - - - Insufficient data available The acute toxicity of inorganic selenium compounds manifests in humans as "clinical findings including vomiting, diarrhea, laboured breathing, weakness, unstable gait, coma; histological findings including pulmonary edema, necrosis of the liver, degeneration of the skeletal muscles, renal tubular hydropic degeneration, swelling and rupture of the myocardial mitochondria" (PATTY (4th, 2000)).
9 Specific target organ toxicity - Repeated exposure Category 1 (nervous system), Category 2 (respiratory system, liver) Danger
Warning 		H372: Cause damage to organs through prolonged or repeated exposure (nervous system)
H373: May cause damage to organs through prolonged or repeated exposure (respiratory system, liver) 		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.
P314: Get medical advice/attention if you feel unwell.
P501: Dispose of contents/container to ... 		Based on the human evidence including "vomiting, dizziness, dysosmia" (CERI Hazard Data 2001-39(2) (2002)), "nasal hypersensitivity, persistent garlic-like smell, hypersensitiveness, tissue damage and liver damage" (ICSC (J) (2000)). The effects on the respiratory organs and liver are classified into Category 2 since the priority rating of the referenced study is 2.
10 Aspiration hazard Classification not possible - - - - No data available

ENVIRONMENTAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
11 Hazardous to the aquatic environment （Acute） Classification not possible - - - - No data available
11 Hazardous to the aquatic environment （Long-term） Classification not possible - - - - No data available


NOTE:
* Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users.
* This is a provisional English translation of classification results and is subject to revision without notice.
* The responsibility for any resulting GHS labelling and SDS referenced from this site is with users.

Reference：
Reference Manual
Definitions / Abbreviations
Model Label by MHLW

 MHLW Website （in Japanese Only）
Model SDS by MHLW

 MHLW Website （in Japanese Only）

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