Chemical Name：Tungsten
CAS：7440-33-7
| ID: | 824 |
| Classifier: | Inter-ministerial Committee on GHS |
| Year Classified: | FY2006 |
| Reference Manual: | GHS Classification Manual （10 Feb, 2006） |
| 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 | - | - | - | - | It is no flammable in a bulk form. |
| 8 | Self-reactive substances and mixtures | Not applicable | - | - | - | - | There are no chemical groups associated with self-reactive properties present in the molecule. |
| 9 | Pyrophoric liquids | Not applicable | - | - | - | - | Solid (GHS definition) |
| 10 | Pyrophoric solids | Classification not possible | - | - | - | - | Although fine powder may ignite, a solid does not ignite. It is dependent on a form. |
| 11 | Self-heating substances and mixtures | Classification not possible | - | - | - | - | No data available on self-heating |
| 12 | Substances and mixtures which, in contact with water, emit flammable gases | Not applicable | - | - | - | - | Although it is metal, since it does not dissolve into water, there is no reactive. |
| 13 | Oxidizing liquids | Not applicable | - | - | - | - | Solid (GHS definition) |
| 14 | Oxidizing solids | Not applicable | - | - | - | - | Tungsten which is an element including no oxygen, chlorine and fluorine. |
| 15 | Organic peroxides | Not applicable | - | - | - | - | Inorganic substance |
| 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） | Classification not possible | - | - | - | - | No data available |
| 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. |
By the report that tungsten metal powder has irritation for the eyes (HSDB (2005), it was set as 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 | - | - | - | - | Classification not possible due to lack of data and reports |
| 7 | Reproductive toxicity | Classification not possible | - | - | - | - | No data available |
| 8 | Specific target organ toxicity - Single exposure | Classification not possible | - | - | - | - | Although there is an example of an accident, it cannot be classified that it unables to say only for the symptoms of tungsten. |
| 9 | Specific target organ toxicity - Repeated exposure | Classification not possible | - | - | - | - | Since there was no case of specific internal organs but report on the cough by metal powder, respiratory distress, hypersensitivity asthma, and lung fibrosis reported among hard metal labours for occupational exposure (PATTY (5th, 2001)) (ATSDR (2005)), it was presupposed that it was unable to be classified. |
| 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 | - | - | - | - | Insufficient data available. |
| 11 | Hazardous to the aquatic environment （Long-term） | Classification not possible | - | - | - | - | Classification not possible due to lack of data |
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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. |
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Reference Manual |
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Definitions / Abbreviations |
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Model SDS by MHLW |
MHLW Website （in Japanese Only） |