GHS Classification Result
PHYSICAL HAZARDS
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS
NOTE:
Reference：
Chemical Name：Silicon (powder, amorphous)
CAS：7440-21-3
Result：
| ID: | 21A3549 |
| Classifier: | Ministry of Health, Labour and Welfare （MHLW）, Ministry of the Environment （MOE） |
| Year Classified: | FY2009 |
| Reference Manual: | GHS Classification Guidance by the Japanese Government （March, 2009） |
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 | Category 2 |
|
Warning | H228: Flammable solids |
P370+P378: In case of fire: Use ... for extinction. P210: Keep away from heat/sparks/open flames/hot surfaces. - No smoking. P240: Ground/bond container and receiving equipment. P241: Use explosion-proof electrical/ventilating/lighting/.../equipment. P280: Wear protective gloves/protective clothing/eye protection/face protection. |
Classified into Category 2 since powder is classified into Division 4.1, PG III in UNRTDG (UN1346). As to granular products, designated tests should be conducted to confirm. |
| 8 | Self-reactive substances and mixtures | Not applicable | - | - | - | - | There are no chemical groups present in the molecule associated with explosive or self-reactive properties. |
| 9 | Pyrophoric liquids | Not applicable | - | - | - | - | Solid (GHS definition) |
| 10 | Pyrophoric solids | Not classified | - | - | - | - | Classified into Not classified since the substance is very stable at room temperature (Encyclopedia Chimica (1994)). The substance is classified into Division 4.1, PG III in UNRTDG (UN1346), not being classified into upper Division 4.2, PG I. |
| 11 | Self-heating substances and mixtures | Classification not possible | - | - | - | - | No data available. |
| 12 | Substances and mixtures which, in contact with water, emit flammable gases | Not classified | - | - | - | - | Classified into Not classified since the substance is judged to be stable against water from the description that bulk Si is unreactive to O2, H2O, H halaides (except HF) (Sax (11th, 2004) and is classified into Division 4.1, PG III in UNRTDG (UN1346), not being classified into upper Division 4.3. |
| 13 | Oxidizing liquids | Not applicable | - | - | - | - | Solid (GHS definition) |
| 14 | Oxidizing solids | Not applicable | - | - | - | - | Inorganic compounds containing no oxygen and halogen atoms |
| 15 | Organic peroxides | Not applicable | - | - | - | - | Inorganic compound |
| 16 | Corrosive to metals | Classification not possible | - | - | - | - | Test methods applicable to solid substances are not available. |
| Hazard class | Classification | Symbol | Signal word | Hazard statement | Precautionary statement | Rationale for the classification | |
|---|---|---|---|---|---|---|---|
| 1 | Acute toxicity （Oral） | Not classified | - | - | - | - | Based on a LD50 value of 3160 mg/kg bw for rats (IUCLID (2000)), the substance was classified into "Not classified" in JIS Classification (corresponding to Category 5 in GHS classification). |
| 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 | Classification not possible | - | - | - | - | No data available. |
| 3 | Serious eye damage/eye irritation | Category 2B | - | Warning | H320: Causes eye irritation |
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337+P313: If eye irritation persists: Get medical advice/attention. P264: Wash ... thoroughly after handling. |
Based on a report of "Slightly irritating" in a rabbit test (IUCLID (2000)), the substance was classified into Category 2B. |
| 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 | Classification not possible | - | - | - | - | Although there is a result that pulmonary epithelial lesions were found in rabbits after intratracheal instillation at 25 mg (HSDB (2009)), classification was not possible due to lack of other sufficient data. |
| 9 | Specific target organ toxicity - Repeated exposure | Classification not possible | - | - | - | - | Since no toxic signs or histopathological findings were observed after dietary administration for 1-month at 800 mg/kg to dogs or rats (HSDB (2009)), the substance corresponds to "Not classified" with oral exposure. However, classification was not possible due to lack of or insufficient data with other exposure routes. |
| 10 | Aspiration hazard | Classification not possible | - | - | - | - | No data available. |
| 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:
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* 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：
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Reference Manual |
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Definitions / Abbreviations |
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Model Label by MHLW |
MHLW Website （in Japanese Only） |
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Model SDS by MHLW |
MHLW Website （in Japanese Only） |