GHS Classification Result
GENERAL INFORMATION
REFERENCE INFORMATION
PHYSICAL HAZARDS
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS
NOTE:
GENERAL INFORMATION
| Item | Information |
|---|---|
| CAS RN | 32241-08-0 |
| Chemical Name | Heptachloronaphthalene |
| Substance ID | H28-A-046, C-102A |
| Classification year (FY) | FY2016 |
| Ministry who conducted the classification | Ministry of Health, Labour and Welfare (MHLW)/Ministry of the Environment (MOE) |
| New/Revised | New |
| Classification result in other fiscal year | |
| Download of Excel format | Excel file |
REFERENCE INFORMATION
| Item | Information |
|---|---|
| Guidance used for the classification (External link) | GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.1)) |
| UN GHS document (External link) | UN GHS document |
| Definitions/Abbreviations (Excel file) | Definitions/Abbreviations |
| Model Label by MHLW (External link) | MHLW Website (in Japanese Only) |
| Model SDS by MHLW (External link) | MHLW Website (in Japanese Only) |
| OECD/eChemPortal (External link) | eChemPortal |
| Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
|---|---|---|---|---|---|---|
| 1 | Explosives | Not applicable |
- |
- | - | There are no chemical groups associated with explosive properties present in the molecule. |
| 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 estimated that this substance is not combustible because either of pentachloronaphthalene, hexachloronaphthalene, and octachloronaphthalene is not combustible (ICSC (2000)). |
| 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 |
- |
- | - | It is estimated that this substance is not combustible because either of pentachloronaphthalene, hexachloronaphthalene, and octachloronaphthalene is not combustible (ICSC (2000)). |
| 11 | Self-heating substances and mixtures | Not classified |
- |
- | - | It is estimated that this substance is not combustible because either of pentachloronaphthalene, hexachloronaphthalene, and octachloronaphthalene is not combustible (ICSC (2000)). |
| 12 | Substances and mixtures which, in contact with water, emit flammable gases | Not applicable |
- |
- | - | The chemical structure of the substance does not contain metals or metalloids (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At). |
| 13 | Oxidizing liquids | Not applicable |
- |
- | - | Solid (GHS definition). |
| 14 | Oxidizing solids | Not applicable |
- |
- | - | The substance is an organic compound containing chlorine (but not fluorine or oxygen) which is chemically bonded only to carbon or hydrogen. |
| 15 | Organic peroxides | Not applicable |
- |
- | - | Organic compounds containing no bivalent -O-O- structure in the molecule |
| 16 | Corrosive to metals | Classification not possible |
- |
- | - | Test methods applicable to solid substances are not available. |
| Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
Rationale for the classification | |
|---|---|---|---|---|---|---|
| 1 | Acute toxicity (Oral) | Classification not possible |
- |
- | - |
Classification not possible due to lack of data. Besides, it is described in CICAD 34 (2001) that mortality observed 7 days after administration of 500 mg/kg of this substance (CAS RN not indicated) in rabbits was 62%. |
| 1 | Acute toxicity (Dermal) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 1 | Acute toxicity (Inhalation: Gases) | Not applicable |
- |
- | - | Solid (GHS definition) |
| 1 | Acute toxicity (Inhalation: Vapours) | Not applicable |
- |
- | - | Solid (GHS definition) |
| 1 | Acute toxicity (Inhalation: Dusts and mists) | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 2 | Skin corrosion/irritation | Classification not possible |
- |
- | - |
Classification not possible due to lack of data. Besides, strong dermal irritations were reported in guinea pigs dermally exposed to polychloronaphthalenes (CICAD 34 (2001)). Nevertheless, because the irritations could not be attributed specifically to this substance, this data was not adopted. |
| 3 | Serious eye damage/eye irritation | Classification not possible |
- |
- | - |
Classification not possible due to lack of data. Besides, irritation of the eyes is reported in workers exposed to polychloronaphthalenes. Nevertheless, because it is noted that there had been a possible exposure to other chemicals (CICAD 34 (2001)), this data was not adopted. |
| 4 | Respiratory sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 4 | Skin sensitization | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 5 | Germ cell mutagenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 6 | Carcinogenicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 7 | Reproductive toxicity | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| 8 | Specific target organ toxicity - Single exposure | Classification not possible |
- |
- | - |
Classification not possible due to lack of data. There is no data on single exposure to this substance in humans and experimental animals. Besides, while there are descriptions that chlorinated naphthalenes exhibit hepatotoxicity (CICAD 34 (2001), DFGOT vol. 13 (1997)) and that symptoms in workers exposed to chlorinated naphthalenes included irritation of the eyes, fatigue, headaches, anaemia, haematuria, anorexia, vomiting, severe abdominal pain (CICAD 34 (2001)), none of these had information on the number of exposure times. |
| 9 | Specific target organ toxicity - Repeated exposure | Category 1 (liver, skin) |
 Danger |
H372 |
P260
P264 P270 P314 P501 |
There was no information with regard to this substance. Besides, as for humans, severe skin reactions (chloracne) and liver disease have both been reported in occupational exposure to chlorinated naphthalenes (CICAD 34 (2001), DFGOT vol. 13 (1997), ACGIH (7th, 2001)). It is reported that the toxicity varies depending on the degree of chlorination and studies in humans and animals had shown that toxicity was dependent on the congener/isomer, and that there is agreement in all studies that the penta- and hexa- isomers were the most toxic (CICAD 34 (2001)). With regard to effects on the skin, it is reported that chloracne was observed with trichloronaphthalenes and higher chlorinated naphthalenes (DFGOT vol. 13 (1997)). It is reported that the incidence and severity of chloracne were less when trichloronaphthalene (usually mixed with some tetrachloronaphthalene) was used than when penta- or hexachloronaphthalene was present (ACGIH (7th, 2001)). It is reported that in wire manufacturing plants, contact with a fabric impregnated with hexa- and pentachloronaphthalenes caused chloracne (ACGIH (7th, 2001)).Moreover, it is reported that after dermal application to volunteers, only Halowax 1014, containing penta- and hexachloronaphthalenes, produced chloracne, and Halowaxes containing mono-, di-, tri-, tetra-, hepta-, and/or octachloronaphthalenes did not (CICAD 34 (2001)). With regard to the effects on the liver, as information in which the substance is identified to some extent, a non-fatal case of hepatitis induced by occupational exposure to trichloronaphthalene (tetrachloronaphthalene was probably also present (CICAD 34 (2001))) at 3mg/m3 has been reported (ACGIH (7th, 2001)). On the other hand, as for higher chlorinated congeners, it is reported that in a workplace environment with concentrations of mixed pentachloronaphthalene and hexachloronaphthalene between 1 and 2 mg/m3, fatal cases of yellow atrophy of the liver occurred (ACGIH (7th, 2001)). As for information in experimental animals, it is reported that in medium-term toxicity experiments performed with technical mixtures of polychloronaphthalenes in rats and guinea pigs, liver damage (mainly enlarged liver cells with increased granularity and vacuolization) etc. were found and the higher chlorinated mixtures appeared to be more toxic (CICAD 34 (2001)). As described above, effects on the liver and skin by chlorinated naphthalenes were observed, and pentachloronaphthalene which has five chlorine atoms and hexachloronaphthalene which has six chlorine atoms are thought to be the major causal substances for the toxicity of chlorinated naphthalenes. However, it was thought that this substance which has seven chlorine atoms, while it was considered to exhibit less toxicity, also have similar target organs. Therefore, this substance was classified in Category 1 (liver, skin). |
| 10 | Aspiration hazard | Classification not possible |
- |
- | - | Classification not possible due to lack of data. |
| Hazard class | Classification |
Pictogram Signal word |
Hazard statement (code) |
Precautionary statement (code) |
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. |
| 12 | Hazardous to the ozone layer | Classification not possible |
- |
- | - | No data available. |
NOTE:
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* A blank or "-" in a cell of classification denotes that the classification of the hazard class was not conducted. * Hazard_statement_and/or_Precautionary_statement will show when hovering the mouse over a code of Hazard_statement_and/or_Precautionary_statement. Hazard_statement_and/or_Precautionary_statement are also provided in the Excel file. * 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. * Codes assigned to each of the hazard statements and codes for each of the precautionary statement are based on the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) in United Nations. |