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GHS Classification Result

GENERAL INFORMATION

Item	Information
CAS RN	80-10-4
Chemical Name	Dichlorodiphenylsilane
Substance ID	24A6059
Classification year (FY)	FY2012
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)	Physical Hazards and Health Hazards: GHS Classification Guidance by the Japanese Government (July, 2010) Environmental Hazards: UN GHS Document (4th revised edition)
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

PHYSICAL HAZARDS

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	- -	-	-	Liquid (GHS definition)
3	Aerosols	Not applicable	- -	-	-	Not aerosol products.
4	Oxidizing gases	Not applicable	- -	-	-	Liquid (GHS definition)
5	Gases under pressure	Not applicable	- -	-	-	Liquid (GHS definition)
6	Flammable liquids	Not classified	- -	-	-	A flash point of 142 deg C [closed-cup] (HSDB (2010)) is above 93 deg C.
7	Flammable solids	Not applicable	- -	-	-	Liquid (GHS definition)
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 classified	- -	-	-	It is classified in Class 8, PG II (UN1769) in UNRTDG and does not correspond to the hazards of the highest precedence, pyrophoric liquids. Therefore, it was classified as "Not classified."
10	Pyrophoric solids	Not applicable	- -	-	-	Liquid (GHS definition)
11	Self-heating substances and mixtures	Classification not possible	- -	-	-	Test methods applicable to liquid substances are not available.
12	Substances and mixtures which, in contact with water, emit flammable gases	Not classified	- -	-	-	It is a compound containing a metalloid (Si), and it is described that it reacts vigorously with water and generates hydrogen chloride (IMDG (2010)), but it does not emit flammable gases. Therefore, it was classified as "Not classified."
13	Oxidizing liquids	Classification not possible	- -	-	-	The substance is an organic compound containing chlorine (but not fluorine or oxygen) which is chemically bonded to the element other than carbon or hydrogen (Si). However, the classification is not possible due to no data.
14	Oxidizing solids	Not applicable	- -	-	-	Liquid (GHS definition)
15	Organic peroxides	Not applicable	- -	-	-	Organic compounds containing no bivalent -O-O- structure.
16	Corrosive to metals	Classification not possible	- -	-	-	No data available.

HEALTH HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification
1	Acute toxicity (Oral)	Classification not possible	- -	-	-	No data available. Besides, because this substance reacts with water to form corrosive hydrogen chloride, please also refer to the health hazards of hydrogen chloride (CAS RN 7647-01-0).
1	Acute toxicity (Dermal)	Category 2	Danger	H310	P302+P352 P361+P364 P262 P264 P270 P280 P310 P321 P405 P501	It was classified in Category 2 based on an LD50 value of 100 microL/kg (120.4 mg/kg) for rabbits (RTECS (2000): the original article, National Technical Information Service (Springfield, VA 22161): OTS0571886).
1	Acute toxicity (Inhalation: Gases)	Not applicable	- -	-	-	Liquid (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 1	Danger	H314	P301+P330+P331 P303+P361+P353 P305+P351+P338 P304+P340 P260 P264 P280 P310 P321 P363 P405 P501	It is described that this substance is a corrosive chemical, contact with skin can cause severe burns leading to permanent damage, and after dermal exposure, dermatitis (red, inflamed skin), severe burns, pain, and shock occur (HSDB (2010)). And it is described that an application of chlorosilanes to rabbits caused necrosis, blistering, and sloughing on the skin (HSDB (2010)). Because the above knowledge means that irreversible damage occurs on the skin on contact with this substance, it was classified in Category 1.
3	Serious eye damage/eye irritation	Category 1	Danger	H318	P305+P351+P338 P280 P310	It is described that this substance is a corrosive chemical, contact can cause severe eye burns leading to permanent damage, and contact with this substance may result in irritation, pain, swelling, corneal erosion, and blindness (HSDB (2010)). And it is described that an application of chlorosilanes to rabbits caused severe damage to the cornea and lids in the eye (HSDB (2010)). Because the above knowledge means that irreversible damage occurs in the eye on contact with this substance, it was classified in 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 2 (respiratory organs)	Warning	H371	P308+P311 P260 P264 P270 P405 P501	As for effects in humans, it is described that acute inhalation exposure may result in sneezing, choking, laryngitis, dyspnea, respiratory tract irritation, and chest pain, and high exposure can cause pulmonary edema and a medical emergency that can be delayed for several hours, leading to death. On the other hand, it is described that bleeding of the nose and gums, ulceration of the nasal and oral mucosa, pulmonary edema, chronic bronchitis, and pneumonia may also occur (HSDB (2010)). It was classified in Category 2 (respiratory organs) based on the above knowledge, which was from List 2 information.
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	No data available.
10	Aspiration hazard	Classification not possible	- -	-	-	No data available.

ENVIRONMENTAL HAZARDS

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	- -	-	-	This substance is not listed in the Annexes to the Montreal Protocol.

NOTE:

GHS Classification Result by the Japanese Government is intended to provide a reference for preparing a GHS label or SDS for users. To include the same classification result in a label or SDS for Japan is NOT mandatory.
Users can cite or copy this classification result when preparing a GHS label or SDS. Please be aware, however, that the responsibility for a label or SDS prepared by citing or copying this classification result lies with users.
This GHS classification was conducted based on the information sources and the guidance for classification and judgement which are described in the GHS Classification Guidance for the Japanese Government etc. Using other literature, test results etc. as evidence and including different content from this classification result in a label or SDS are allowed.
Hazard statement and precautionary statement will show by hovering the mouse cursor over a code in the column of "Hazard statement" and "Precautionary statement," respectively. In the excel file, both the codes and statements are provided.
A blank or "-" in the column of "Classification" denotes that a classification for the hazard class was not conducted in the year.

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