NITE - Chemical Management Field

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

GENERAL INFORMATION

Item	Information
CAS RN	144-55-8
Chemical Name	Sodium hydrogen carbonate
Substance ID	m-nite-144-55-8_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.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
2	Flammable gases	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
3	Aerosols	Not classified (Not applicable)	- -	-	-	Not aerosol products.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
4	Oxidizing gases	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
5	Gases under pressure	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
6	Flammable liquids	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
7	Flammable solids	Not classified	- -	-	-	Not combustible (ICSC (2004)).	FY2013	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.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
9	Pyrophoric liquids	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
10	Pyrophoric solids	Not classified	- -	-	-	Not combustible (ICSC (2004)).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
11	Self-heating substances and mixtures	Not classified	- -	-	-	Not combustible (ICSC (2004)).	FY2013	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	Not classified	- -	-	-	From information on water solubility: 8.7 g/100 g (20 deg C) (HSDB (Access on October 2013)), it is recognized that it does not react vigorously with water.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
13	Oxidizing liquids	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
14	Oxidizing solids	Not classified	- -	-	-	It is not oxidizing (SIDS (2004)).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
15	Organic peroxides	Not classified (Not applicable)	- -	-	-	It is an inorganic compound.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
16	Corrosive to metals	Classification not possible	- -	-	-	Test methods applicable to solid substances are not available.	FY2013	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)	Not classified	- -	-	-	It was classified as "Not classified" based on a report on LD50 values for rats of > 4,000 mg/kg, 7,334 mg/kg, and 4,220-8,290 mg/kg (SIDS (2004)).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Dermal)	Not classified	- -	-	-	It was classified as "Not classified" based on a report on an LD50 value of > 2,000 mg/kg for rats (Japan Crop Protection Association (1996)).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Gases)	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Vapours)	Not classified (Not applicable)	- -	-	-	Solid (GHS definition)	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
1	Acute toxicity (Inhalation: Dusts and mists)	Not classified	- -	-	-	It was classified as "Not classified" based on a report on an LC50 value for rats of > 4.74 mg/L (4.5 hours) (converted 4-hour equivalent value: 5.33 mg/L) (SIDS (2004)). Besides, it was regarded as a test on dust based on the description of the test methods, and a reference value in the unit of mg/L was applied.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
2	Skin corrosion/irritation	Not classified	- -	-	-	Because a test with rabbits according to the test guideline resulted in extremely slight irritation (primary skin irritation score = 0.3) (SIDS (2004)), it was classified as "Not classified" (Category 3 in UN GHS classification).	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
3	Serious eye damage/eye irritation	Not classified	- -	-	-	Five data are reported in SIDS (2004), and it is reported that in a reliable test according to the EPA TSCA guideline, a 24-hour score (MMTS) was 8.3 (slight irritation). Therefore, it was classified as "Not classified" (Category 3 in UN GHS classification).	FY2013	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.	FY2013	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.	FY2013	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. There are no in vivo data, and as for in vitro, it was negative in a bacterial reverse mutation test and a chromosomal aberration test with cultured mammalian cells (SIDS (2004)).	FY2013	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.	FY2013	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. Besides, no developmental toxicity was observed in developmental toxicity tests with mice, rats, with rabbits in the oral route (gavage) (SIDS (2004)). No reports on fertility were obtained.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
8	Specific target organ toxicity - Single exposure	Not classified	- -	-	-	All tests reported in the oral route used doses above the guidance value range (3,000-9,000 mg/kg), and the animals showed transient symptoms such as hypoactivity, staggered gait, and shallow breathing but recovered later (SIDS (2004), Japan Crop Protection Association (1996)). Therefore, it was classified in Category 3 (narcotic effects). Besides, in inhalation exposure (mist) in rats, transient reduced movement and hunched posture, and ocular and/or nasal discharge were observed at the concentration (4.74 mg/L) near the upper limit of the guidance value range, but these were reversible. As for the dermal route, it is described that in a test with rats exposed to the undiluted substance at the highest dose (2,000 mg/kg) within the guidance value range, no death or toxic signs were observed (Japan Crop Protection Association (1996)). From the above results, it was classified as "Not classified."	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
9	Specific target organ toxicity - Repeated exposure	Classification not possible	- -	-	-	Because it is described in SIDS (2004) that this substance is recognized as GRAS (Generally Recognized As Safe) by the U.S. Food and Drug Administration (FDA), it is thought to correspond to "Not classified" in the oral route. However, because of no toxicity information on the other routes, it was classified as "Classification not possible" due to lack of data.	FY2013	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.	FY2013	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)	Not classified	- -	-	-	From 48-hour EC50 = 1020 mg/L for crustacea (Ceriodaphnia dubia) (SIDS, 2004), and 96-hour LC50 = 7700 mg/L for fish (Oncorhynchus mykiss) (SIDS, 2004), it was classified as "Not classified."	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
11	Hazardous to the aquatic environment Long term (Chronic)	Not classified	- -	-	-	If chronic toxicity data are used, then it is classified as "Not classified" due to 21-day NOEC (reproduction, survival) > 576 mg/L for crustacea (Daphnia magna) (SIDS, 2004), despite unknown behavior of the inorganic compound in water. If acute toxicity data are used for a trophic level for which chronic toxicity data are not obtained, then it is classified as "Not classified" due to 96-hour LC50 = 7700 mg/L for fish (Oncorhynchus mykiss) (SIDS, 2004), despite unknown behavior of the inorganic compound in water. From the above results, it was classified as "Not classified."	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))
12	Hazardous to the ozone layer	Classification not possible	- -	-	-	This substance is not listed in the Annexes to the Montreal Protocol.	FY2013	GHS Classification Guidance for the Japanese Government (FY2013 revised edition (Ver. 1.0))

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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