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GHS Classification Result

GENERAL INFORMATION

Item	Information
CAS RN	7761-88-8
Chemical Name	Nitric acid silver(I)
Substance ID	H26-B-111, R-052
Classification year (FY)	FY2014
Ministry who conducted the classification	Ministry of Health, Labour and Welfare (MHLW)/Ministry of the Environment (MOE)
New/Revised	Revised
Classification result in other fiscal year	FY2006
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)
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 classified	- -	-	-	It is a nitrate, containing a chemical group associated with explosive properties. However, it is classified in Division 5.1, PG II (UN1493) in UNRTDG, not applicable to the hazards of the highest precedence, explosives.
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 not combustible (ICSC (1998)).
8	Self-reactive substances and mixtures	Not applicable	- -	-	-	It is a nitrate, containing a chemical group associated with explosive properties, but it was classified as oxidizing solids.
9	Pyrophoric liquids	Not applicable	- -	-	-	Solid (GHS definition).
10	Pyrophoric solids	Not classified	- -	-	-	It is not combustible (ICSC (1998)).
11	Self-heating substances and mixtures	Not classified	- -	-	-	It is not combustible (ICSC (1998)).
12	Substances and mixtures which, in contact with water, emit flammable gases	Not classified	- -	-	-	Because data of water solubility: 2,160 g/L (20 deg C) (GESTIS (Access on September 2014)) were obtained, it is estimated that it does not react vigorously with water.
13	Oxidizing liquids	Not applicable	- -	-	-	Solid (GHS definition).
14	Oxidizing solids	Category 2	Danger	H272	P370+P378 P210 P220 P221 P280 P501	Because it is classified in Division 5.1, PG II (UN1493) in UNRTDG, it was classified in Category 2.
15	Organic peroxides	Not applicable	- -	-	-	It is an inorganic compound.
16	Corrosive to metals	Classification not possible	- -	-	-	Test methods applicable to solid substances are not available.

HEALTH HAZARDS

Hazard class		Classification	Pictogram Signal word	Hazard statement (code)	Precautionary statement (code)	Rationale for the classification
1	Acute toxicity (Oral)	Category 4	Warning	H302	P301+P312 P362+P364 P264 P270 P330 P501	Based on a report of an LD50 value of 1,170 mg/kg for rats (IUCLID (2000)), it was classified in Category 4.
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	Category 1	Danger	H314	P301+P330+P331 P303+P361+P353 P305+P351+P338 P304+P340 P260 P264 P280 P310 P321 P363 P405 P501	There is a description that this substance caused corrosivity to the skin (CICAD 44 (2003)). In addition, there is a report of chemical burns by contact with this substance in occupational exposure (ATSDR (1990)). From the above results, it was classified in Category 1. Moreover, this substance was classified as "C; R34" in the EU DSD classification, and as "Skin Corr. 1B H314" in the EU CLP classification.
3	Serious eye damage/eye irritation	Category 1	Danger	H318	P305+P351+P338 P280 P310	There is a description that this substance caused severe corrosivity to the eyes (CICAD 44 (2003)). In addition, there is a report of chemical burns by contact with the eyes in occupational exposure (ATSDR (1990)). Additionally, this substance was classified in Category 1 for skin corrosion/irritation. From the above results, it was classified in Category 1. Moreover, this substance was classified as "C; R34" in the EU DSD classification, and as "Skin Corr. 1B H314" in the EU CLP classification.
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. Besides, there are reports that in a test with pregnant monkeys administered by intrauterine injection, although vaginal bleeding and abortion were observed, the animals delivered normal offspring after subsequent remating (PATTY (6th, 2012), ACGIH (7th, 2001), ATSDR (1990)). Because this was not conducted by the general human exposure route, it was not used for classification. From the above, it was classified as "Classification not possible" due to lack of data. Besides, in the previous classification, it was classified in Category 2 on the basis that effects on the testis (necrosis of the seminiferous tubules, etc.) were observed by direct administration to the testis. However, it is described in IUCLID (2000) that this test was unreliable because it was not conducted either by general protocol or by the normal administration route, and because effects were not well documented. In addition, since there were only effects on the testis and reproductive effects were unknown, the classification was changed from Category 2 to "Classification not possible."
8	Specific target organ toxicity - Single exposure	Category 3 (Respiratory tract irritation)	Warning	H335	P304+P340 P403+P233 P261 P271 P312 P405 P501	This substance was corrosive and irritating to the respiratory tract (ATSDR (1990), PATTY (6th, 2012)). In humans, there is a report of irritation to the respiratory tract mucosa by inhalation exposure to the dust and burning sensation and pain in the mouth, salivation, vomiting, abdominal pain, diarrhea, severe gastroenteritis, hypotension, reduced breathing rate, vertigo, convulsions, paralysis of the diaphragm muscle, coma, central nervous system disorder and death as oral acute poisoning symptoms (HSDB (Access on September 2014)). There were no data in experimental animals. From the above, although there is a description showing effects on the central nervous system, it is only in HSDB, the information source of List 2, and the original source could not be confirmed, therefore, the central nervous system was not adopted. Additionally, in the previous classification, although the effects on the blood system from methemoglobinemia and cyanosis in experimental animals (Category 1 (hemal system)) were adopted using the information sources in List 3, the blood system was not adopted because no description showing effects on the blood system was found in List 1 and List 2 in humans and experimental animals, and original source could not be confirmed from information sources in List 3 shown in the previous classification. Therefore, this substance was considered to be irritating to the respiratory tract, and it was classified in Category 3 (respiratory tract irritation).
9	Specific target organ toxicity - Repeated exposure	Category 1 (respiratory organs)	Danger	H372	P260 P264 P270 P314 P501	There is a description that 25 out of 30 workers exposed to silver dust for less than 1 year to more than 10 years at a plant manufacturing silver nitrate and silver oxide complained of upper respiratory irritation symptoms (sneezing, running nose, nasal stuffiness, sore throat), and 10 of the 30 workers complained of abdominal pain (burning pain relieved by antacids) (ATSDR (1990), ACGIH (7th, 2001)). Of these, abdominal pain may be due to the effects of mucous membrane irritation by the oral ingestion of part of the dust, it was considered that it should not be adopted as the target organ because it was observed in a few workers (1/3 of the total), and other gastrointestinal symptoms such as diarrhea and vomiting were not described. On the other hand, as for experimental animals, in a test in which rats were given this substance in drinking water at 222 mg Ag/kg/day (equivalent to 349.6 mg/kg/day) for 37 weeks, although increased mortality was observed after 23 weeks, there are no description of organs toxicity except for ocular argyria (ACGIH (7th, 2001)). In addition, there is a description that in a test in which rats were dosed by drinking water at 89 mg Ag/kg/day (equivalent to 140 mg/kg/day) for 9 months, enlargement of the left ventricle was observed (ATSDR (1990), ACGIH (7th, 2001)). However, there was no report of effects on the cardiovascular system in humans or other animal tests, and this result was considered to be unreliable (ATSDR (1990)). There were no other available data for classification in experimental animals. From the above, it was classified in Category 1 (respiratory organs). Besides, although in the previous classification, "kidney" and "cardiovascular system" were adopted as target organs based on the data from the information source in List 3, "cardiovascular system" was deleted for the reason described above. As for kidney, although there was a concern about adverse effects on kidney function due to deposition of silver in the kidneys, there was no evidence in tests with experimental animals, and there were also no data which correlated the amount of silver exposure with renal dysfunction in humans in the findings in occupational exposure. Considering a description that the evidence of "kidney" as the target organ was insufficient (ATSDR (1990)), "kidney" was deleted from the target organ.
10	Aspiration hazard	Classification not possible	- -	-	-	Classification not possible due to lack of data.

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)	Category 1	Warning	H400	P273 P391 P501	It was classified in Category 1 from 48-hour EC50 = 0.0014 mg/L (0.0009 mgAg/L) for crustacea (Daphnia magna) (CICADs 44, 2002).
11	Hazardous to the aquatic environment (Long-term)	Category 1	Warning	H410	P273 P391 P501	If chronic toxicity data are used, then it is classified in Category 1 due to unknown environmental dynamics of the inorganic compound, and 60-day LOEC = 0.00016 mg/L for fish (Oncorhynchus mykiss) (CICADs 44, 2002). If acute toxicity data are used for a trophic level for which chronic toxicity data are not obtained, then it is classified in Category 1 due to unknown environmental dynamics of the inorganic compound, and 48-hour EC50 = 0.0014 mg/L (0.0009 mgAg/L) for crustacea (Daphnia magna) (CICADs 44, 2002). From the above results, it was classified in Category 1.
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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