GHS Classification Result

Chemical Name:Calcium dihydroxide
CAS:1305-62-0

Result:
ID: 811
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 - - - - There are no chemical groups associated with explosive properties present in the molecules.
2 Flammable gases (including chemically unstable gases) Not applicable - - - - Solid (GHS definition)
3 Aerosols Not applicable - - - - Not aerosol products
4 Oxidizing gases Not applicable - - - - Solid (GHS definition)
5 Gases under pressure Not applicable - - - - Solid (GHS definition)
6 Flammable liquids Not applicable - - - - Solid (GHS definition)
7 Flammable solids Not classified - - - - Non-combustible (ICSC (1997), Weiss (2nd, 1985))
8 Self-reactive substances and mixtures Not applicable - - - - There are no chemical groups associated with explosive or self-reactive properties present in the molecule.
9 Pyrophoric liquids Not applicable - - - - Solid (GHS definition)
10 Pyrophoric solids Not classified - - - - Non-combustible (ICSC, 1997; Weiss, 2nd, 1985)
11 Self-heating substances and mixtures Not classified - - - - Non-combustible (ICSC, 1997; Weiss, 2nd, 1985)
12 Substances and mixtures which, in contact with water, emit flammable gases Not classified - - - - Stable to wate. Not react with water. (Weiss, 2nd, 1985)
13 Oxidizing liquids Not applicable - - - - Solid (GHS definition)
14 Oxidizing solids Classification not possible - - - - Classification not possible due to lack of data, though containing oxygen.
15 Organic peroxides Not applicable - - - - Inorganic compound
16 Corrosive to metals Classification not possible - - - - The test methods suitable for a solids material are not established. (It is classified into 8 and III according to UNRTDG of Generic or N.O.S.entry. There is a statement in ICSC (1997) that it corrodes many metals under the presence of the water and hydrogen gas is produced).

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity (Oral) Not classified - - - - Not classified because of SPECIES: Rat; ENDPOINT: LD50; VALUE: 7340mg/kg; REFERENCE SOURCE: ACGIH (2001); HSDB (2005)
1 Acute toxicity (Dermal) Classification not possible - - - - No data available
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Solid (GHS definition)
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 2 Warning H315: Causes skin irritation P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P264: Wash ... thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P321: Specific treatment (see ... on this label).
P362: Take off contaminated clothing and wash before reuse.
Based on descriptions that it has moderate stimulativeness on all body surface exposure including eyes and airways (ACGIH, 7th, 2001) and that it indicates moderate, severe, and a corrosive stimulation on human skin (IUCLID, 2000; HSDB, 2005; ICSC (J) 1997; SITTIG, 4th, 2002; and HSFS, 2005), it was classified as Category 2.
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 that moderate, severe, and corrosive irritations are indicated to the eyes in humans (ACGIH, 7th, 2001; IUCLID, 2000; HSDB, 2005; ICSC (J) 1997; SITTIG, 4th, 2002; HSFS, 2005), and the deascription that corrosive irritations are indicated to the rabbits (IUCLID, 2000), it was set as Category 1.
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
6 Carcinogenicity Classification not possible - - - - No data available
7 Reproductive toxicity Classification not possible - - - - No data available
8 Specific target organ toxicity - Single exposure Category 1 (respiratory system) Danger H370: Causes damage to organs (respiratory system) P307+P311: IF exposed: Call a POISON CENTER or doctor/physician.
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.
P321: Specific treatment (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
Classified into Category 1 (respiratory system) based on the descriptions (ACGIH, 7th, 2001; HSDB, 2005; ICSC (J), 1997; SITTIG, 4th, 2002; HSFS, 2005 ) that it stimulates human respiratory organ and respiratory tract to induce lung edema.
9 Specific target organ toxicity - Repeated exposure Category 2 (lung) Warning H373: May cause damage to organs through prolonged or repeated exposure (lung) P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P314: Get medical advice/attention if you feel unwell.
P501: Dispose of contents/container to ...
It was classified into Category 2 (lungs) since description that says human lung may be risked in Priority 2 (ICSC(J)1997;SITTIG, 4th, 2002).
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 - - - - Insufficient data available.
11 Hazardous to the aquatic environment (Long-term) Classification not possible - - - - Classification not possible due to lack of data


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 SDS by MHLW

MHLW Website (in Japanese Only)


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