NITE - Chemical Management Field

Latest GHS Classification Results by the Japanese Government (edited by NITE)

GENERAL INFORMATION

Item	Information
CAS RN	19624-22-7
Chemical Name	Pentaborane
Substance ID	m-nite-19624-22-7_v1
Download of Excel format	Excel file

REFERENCE INFORMATION

Item	Information
Guidance used for the classification (External link)	To Guidance List
UN GHS document (External link)	To UN GHS document
FAQ（GHS classification results by the Japanese Government）	To FAQ
List of Information Sources (Excel file)	List of Information Sources
List of Definitions/Abbreviations	Definitions/Abbreviations
Sample Label by MHLW (External link)	To Workplace Safety Site (MHLW)
Sample SDS by MHLW (External link)	To Workplace Safety Site (MHLW)
OECD/eChemPortal (External link)	To OECD/eChemPortal (External link)

PHYSICAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
1	Explosives	Not classified (Not applicable)	- -	-	-	There are no chemical groups associated with explosive properties present in the molecule.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
2	Flammable gases	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
3	Aerosols	Not classified (Not applicable)	- -	-	-	Not aerosol products.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Oxidizing gases	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
5	Gases under pressure	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
6	Flammable liquids	Category 3	Warning	H226	P303+P361+P353 P370+P378 P403+P235 P210 P233 P240 P241 P242 P243 P280 P501	It was classified in Category 3 based on a flash point of 30 deg C (Closed cup) (ICSC (1998)).	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
7	Flammable solids	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
8	Self-reactive substances and mixtures	Not classified (Not applicable)	- -	-	-	There are no chemical groups present in the molecule associated with explosive or self-reactive properties.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
9	Pyrophoric liquids	Category 1	Danger	H250	P231+P232 P302+P334 P370+P378 P210 P222 P233 P280	It is classified in Division 4.2, Subsidiary Risk 6.1, PG I (UN1380) in UNRTDG.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
10	Pyrophoric solids	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
11	Self-heating substances and mixtures	Not classified (Not applicable)	- -	-	-	It was classified in pyrophoric liquids.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
12	Substances and mixtures which, in contact with water, emit flammable gases	Classification not possible	- -	-	-	No data available.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
13	Oxidizing liquids	Not classified (Not applicable)	- -	-	-	Organic compounds containing no oxygen, fluorine or chlorine	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
14	Oxidizing solids	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
15	Organic peroxides	Not classified (Not applicable)	- -	-	-	Organic compounds containing no bivalent -O-O- structure in the molecule	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
16	Corrosive to metals	Classification not possible	- -	-	-	No data available.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
17	Desensitized explosives	-	- -	-	-	-	-	-

HEALTH HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
1	Acute toxicity (Oral)	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Dermal)	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Gases)	Not classified (Not applicable)	- -	-	-	Liquid (GHS definition)	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Vapours)	Category 1	Danger	H330	P304+P340 P403+P233 P260 P271 P284 P310 P320 P405 P501	Based on a report of an LC50 value (4 hours) of 6 ppm for rats (ACGIH (7th, 2001)), it was classified in Category 1. Besides, since the LC50 value was lower than 90% of the saturated vapour concentration (225,074 ppm), the reference value in units of ppm was applied as a vapour without a mist.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Dusts and mists)	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
2	Skin corrosion/irritation	Category 2	Warning	H315	P302+P352 P332+P313 P362+P364 P264 P280 P321	Although there were no data on experimental animal tests, based on a description that contact can severely irritate and burn the skin (HSFS (2000)), it was classified in Category 2.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
3	Serious eye damage/eye irritation	Category 1	Danger	H318	P305+P351+P338 P280 P310	There are descriptions that this substance is irritating to the eyes (HSDB (Access on September 2014)), and that vapour exposure with humans caused necrotic changes, serious kerato-conjunctivitis with ulceration and corneal opacification (HSDB (Access on September 2014)). From the above result, it was classified in Category 1.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Respiratory sensitization	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Skin sensitization	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
5	Germ cell mutagenicity	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
6	Carcinogenicity	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
7	Reproductive toxicity	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
8	Specific target organ toxicity - Single exposure	Category 1 (central nervous system, liver), Category 3 (respiratory tract irritation, narcotic effects)	Danger Warning	H370 H335 H336	P308+P311 P260 P264 P270 P321 P405 P501 P304+P340 P403+P233 P261 P271 P312	This substance is irritating to the respiratory tract (ACGIH (7th, 2001), HSDB (Access on September 2014)). As for humans, there are reports of multiple accidents and cases. By inhalation exposure at lower concentrations, nausea, drowsiness, behavioral changes including loss of recent memory and poor judgment, visual disturbances were observed, and by inhalation exposure at higher concentrations, effects on the central nervous system such as headache, dizziness, nervous excitation, ataxia, muscular pains, tremors, clonic convulsions, convulsions, opisthotonic convulsions, incoordination, disorientation, coma and irreversible central nervous system damage were consistently observed (ACGIH (7th, 2001), HSDB (Access on September 2014)). In 3 cases of accidental poisoning due to this substance, it was described that in addition to central nervous system symptoms, elevation in serum transaminase (AST, ALT) activity suggesting liver damage was observed (PATTY (6th, 2012)). As for experimental animals, central nervous system change was observed in mice by inhalation exposure at 342 mg/m3 (PATTY (6th, 2012)). From the above, it was classified in Category 1 (central nervous system, liver), Category 3 (respiratory tract irritation, narcotic effects). Besides, although the liver was not adopted in the previous classification, it was added in this classification because liver damage was described as the acute toxic finding in humans by acute exposure.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
9	Specific target organ toxicity - Repeated exposure	Category 1 (central nervous system)	Danger	H372	P260 P264 P270 P314 P501	There was no clear finding on humans by repeated exposure. As for experimental animals, there are descriptions that hyperexcitability and tremors were observed when rats were exposed by inhalation at 3 ppm (7.74 mg/m3) for 4 weeks (ACGIH (7th, 2001)), and that symptoms via the central nervous system such as apathy, incoordination, hind limb immobility and muscle tremors were observed when rats, rabbits, dogs and monkeys inhaled 0.2 ppm (0.516 mg/m3) of the vapour of this substance for 6 months (PATTY (6th, 2012), ACGIH (7th, 2001)). In all tests, central nervous system symptoms appeared within the concentration range for Category 1. From the above, it was classified in Category 1 (central nervous system). Besides, in the previous classification, because it was described that hepatic effects on humans were observed in an information source not listed on the information source lists on the GHS classification guidance for the Japanese government (HSFS (2000)), the "liver" was adopted as a target organ. In PATTY (6th, 2012) which is the information source of List 1, it was described that elevation in serum transaminase (AST, ALT) activity suggesting liver damage was observed in 3 cases exposed to this substance. However, as a result of confirming the effects on the hepatic function in these three cases in the original report (Yarbrough, B. E. et al. (1985-1986)), it was found that all were delayed findings due to acute exposure poisoning from pentaborane by accident. Therefore, the "liver" was deleted from target organs in this classification.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
10	Aspiration hazard	Classification not possible	- -	-	-	Classification not possible due to lack of data.	FY2014	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))

ENVIRONMENTAL HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification	Classification year (FY)	GHS Classification Guidance for the Japanese Government
11	Hazardous to the aquatic environment Short term (Acute)	Classification not possible	- -	-	-	No data available	FY2006	GHS Classification Manual （10 Feb, 2006）
11	Hazardous to the aquatic environment Long term (Chronic)	Classification not possible	- -	-	-	No data available.	FY2006	GHS Classification Manual （10 Feb, 2006）
12	Hazardous to the ozone layer	-	- -	-	-	-	-	-

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.
An asterisk “*” in the column of “Classification” denotes that “Not classified (or No applicable)” and/or “Classification not possible” is applicable. Details are described in the column of “Rationale for the classification”. If no English translation is available for “Rationale for the classification,” please refer to the Japanese version of the results.

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