Item | Information |
---|---|
CAS RN | 540-69-2 |
Chemical Name | Ammonium formate |
Substance ID | H30-A-004-METI, MOE |
Classification year (FY) | FY2018 |
Ministry who conducted the classification | Ministry of Economy, Trade and Industry (METI)/Ministry of the Environment (MOE) |
New/Revised | New |
Classification result in other fiscal year | |
Download of Excel format | Excel file |
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) | |
Model SDS by MHLW (External link) | |
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 | Classification not possible |
- |
- | - | No data available. |
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 | Classification not possible |
- |
- | - | No data available. |
11 | Self-heating substances and mixtures | Classification not possible |
- |
- | - | Test methods applicable to solid (melting point <= 140 deg C) substances are not available. |
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 |
- |
- | - | It is an organic compound which does not contain fluorine or chlorine but contains oxygen, and the oxygen is ionically bonded to the element other than carbon or hydrogen (N) and does not contribute to oxidization. |
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) | Not classified |
- |
- | - |
[Rationale for the Classification] Based on (1), it was classified as "Not classified" (equivalent to Category 5 in UN GHS classification or equivalent to "Not classified"). [Evidence Data] (1) LD50 for rats: >2,000 mg/kg (SIDS (2008)). [Reference Data, etc.] (2) LD50 for mice: 2,250 mg/kg (SIDS (2008)). |
1 | Acute toxicity (Dermal) | Classification not possible |
- |
- | - |
[Rationale for the Classification] Classification not possible due to lack of data. |
1 | Acute toxicity (Inhalation: Gases) | Not applicable |
- |
- | - |
[Rationale for the Classification] Solid (GHS definition) |
1 | Acute toxicity (Inhalation: Vapours) | Classification not possible |
- |
- | - |
[Rationale for the Classification] Classification not possible due to lack of data. |
1 | Acute toxicity (Inhalation: Dusts and mists) | Classification not possible |
- |
- | - |
[Rationale for the Classification] Classification not possible due to lack of data. |
2 | Skin corrosion/irritation | Classification not possible |
- |
- | - |
[Rationale for the Classification] Since there are no data on this substance itself, it cannot be classified. Based on (1), when comparing the pKa of formic acid and the pKb (calculated from pKa) of ammonia water, it is on the acidic side only by 1, and it is considered that this substance is neutralized in an aqueous solution. Although the information (2) and (3) are also obtained, there are no data on this substance itself. Therefore, it was classified as "Classification not possible" due to lack of data. [Reference Data, etc.] (1) The acid dissociation constants (pKa) of aqueous formic acid and ammonia water are 3.70 (SIAR (2008)) and 9.25 (SIAR (2007)), respectively. (2) There is a report that no irritation was observed in a skin irritation test (OECD TG404, GLP) with rabbits using calcium diformate (CAS RN 544-17-2) (SIDS (2008)). (3) There are reports that no irritation was observed in two skin irritation tests (OECD TG404, GLP) with rabbits using potassium hydrogen diformate (CAS RN 20642-05-1) (SIDS (2008)). |
3 | Serious eye damage/eye irritation | Classification not possible |
- |
- | - |
[Rationale for the Classification] Since there are no data on this substance itself, it cannot be classified. Besides, according to (1), the dissociation constant is slightly greater for formic acid, being one pH degree closer to the acidic side 1 from neutral (pH 7), and it is considered that this substance is neutralized in an aqueous solution. Although the information (2)-(4) are also obtained, there are no data on this substance itself. Therefore, it was classified as "Classification not possible" due to lack of data. [Reference Data, etc.] (1) The acid dissociation constant (pKa) of aqueous formic acid and the base dissociation constant (pKb) of ammonia water are 3.75 (SIAR (2008)) and 4.75 (SIAR (2007)), respectively. (2) There are reports that corrosivity was shown in three eye irritation tests (OECD TG405, GLP) with rabbits using potassium hydrogen diformate (CAS RN 20642-05-1) (SIDS (2008)). (3) There is a report that in an eye irritation test (EPA OPPTS 798.4500) with rabbits using sodium formate (CAS RN 141-53-7), conjunctival redness (grade 2) and conjunctival edema (grade 1) were observed after application and these resolved after 17 days (SIDS (2008)). (4) There is a report that in an eye irritation test (OECD TG405, GLP) with rabbits using calcium diformate (CAS RN 544-17-2), corneal opacity, iritis, conjunctival edema, and conjunctival redness of Grade 2 were observed after application and these did not resolve completely even after 13 days (SIDS (2008)). |
4 | Respiratory sensitization | Classification not possible |
- |
- | - |
[Rationale for the Classification] Classification not possible due to lack of data. |
4 | Skin sensitization | Classification not possible |
- |
- | - |
[Rationale for the Classification] Since there are no data on this substance itself, it cannot be classified. [Reference Data, etc.] (1) There is a report that it was negative in a skin sensitization test (OECD TG406, Buehler method, GLP) with guinea pigs using formic acid (CAS RN 64-18-6) (SIDS (2008)). However, in the GHS classification by the government, there is not enough information to judge sensitization, so it was classified as "Classification not possible." (2) Ammonia (CAS RN 7664-41-7) and ammonia water (CAS RN 1336-21-6) were classified as "Classification not possible" due to the lack of information for judging sensitization in the GHS classification by the Government. (3) There is a report that a negative result was reported in a skin sensitization test (OECD TG406, Maximization method, GLP) with guinea pigs using potassium hydrogen diformate (SIDS (2008)). |
5 | Germ cell mutagenicity | Classification not possible |
- |
- | - |
[Rationale for the Classification] Classification not possible due to lack of data. [Reference Data, etc.] (1) As for potassium hydrogen diformate, it was negative in a micronucleus test with rat bone marrow (SIDS (2008)). (2) As for formic acid, calcium diformate and potassium hydrogen diformate, they were negative in bacterial reverse mutation tests (SIDS (2008)). (3) As for formic acid and potassium hydrogen diformate, they were negative in forward mutation tests with cultured mammalian cells (CHO) or mouse lymphoma cells (SIDS (2008)). (4) As for formic acid and sodium formate, the induction of chromosomal aberrations is affected by the pH in chromosomal aberration tests with cultured mammalian cells (CHO). In addition, although positive results were also obtained under unphysiological test conditions, such as excessively high concentrations of formic acid which cause chromosomal damage, under physiological conditions, sodium formate, which forms formic acid during the neutralization process with formic acid itself, did not induce chromosome aberrations (SIDS (2008)). (5) As for potassium hydrogen diformate, it was negative in a chromosomal aberration test with human peripheral blood lymphocytes (SIDS (2008)). (6) As for formic acid, it was negative in a sister chromatid exchange test with cultured mammalian cells (V79) (SIDS (2008)). |
6 | Carcinogenicity | Classification not possible |
- |
- | - |
[Rationale for the Classification] As for carcinogenicity, there are no available reports on humans. There are no classification results by domestic and international organizations. Therefore, classification was not possible due to lack of data. [Reference Data, etc.] (1) As for potassium hydrogen diformate, in a carcinogenicity test with rats dosed by feeding for 2 years, no increase in the incidence of tumors was observed at up to 2,000 mg/kg/day (SIDS (2008)). (2) As for potassium hydrogen diformate, in a carcinogenicity test with mice dosed by feeding for 80 weeks, no increase in the incidence of tumors was observed at up to 2,000 mg/kg/day (SIDS (2008)). |
7 | Reproductive toxicity | Classification not possible |
- |
- | - |
[Rationale for the Classification] Since there are no data on this substance itself, it cannot be classified. [Reference Data, etc.] (1) As for sodium formate, in a developmental toxicity test with pregnant rats dosed by gavage (59-945 mg/kg/day, gestational day 6-19), no effects were observed in either maternal animals or fetuses (SIDS (2008)). (2) As for sodium formate, in a developmental toxicity test with pregnant rabbits dosed by gavage (100-1,000 mg/kg/day), no effects were observed in either maternal animals or fetuses (SIDS (2008)). |
8 | Specific target organ toxicity - Single exposure | Classification not possible |
- |
- | - |
[Rationale for the Classification] From data in (1), the target organs cannot be identified even at the limit dose. Although it is considered to correspond to "Not classified" through the oral route, there is no toxicity information through the other routes. Therefore, classification was not possible due to lack of data. [Evidence Data] (1) In an acute oral toxicity test (OECD TG423) with rats, at 2,000 mg/kg which is the upper limit of Category 2, piloerection and hunched posture were observed after administration, but there was no death, and no abnormality was also observed at necropsy (SIDS (2008)). |
9 | Specific target organ toxicity - Repeated exposure | Classification not possible |
- |
- | - |
[Rationale for the Classification] Since there are no data on this substance itself, classification was not possible due to lack of data. [Reference Data, etc.] (1) As for potassium hydrogen diformate, in a test with rats dosed by feeding for 13 weeks, thickening of the stomach and squamous cell hyperplasia of the forestomach were observed at 600 mg/kg/day (a converted value equivalent to this substance: 291 mg/kg/day) exceeding the range of Category 2 (SIDS (2008)). (2) As for potassium hydrogen diformate, in a test with rats dosed by feeding for 104 weeks, findings such as basal cell/squamous cell hyperplasia of the stomach, acanthosis and hyperkeratosis of the stomach, in addition Brunner's gland hypertrophy in the duodenum and acinar cell hypertrophy in the salivary glands were observed at 400 mg/kg/day (a converted value equivalent to this substance: 194 mg/kg/day) exceeding Category 2 (SIDS (2008), Risk Assessment Report (Feed additives) (Food Safety Commission of Japan, 2007)). (3) As for potassium hydrogen diformate, in a test with mice dosed by feeding for 80 weeks, hyperplasia, and thickening of the squamous epithelium in the forestomach were observed at 400 mg/kg/day (a converted value equivalent to this substance: 194 mg/kg/day) exceeding the range of Category 2 (SIDS (2008), Risk Assessment Report (Feed additives) (Food Safety Commission of Japan, 2007)). |
10 | Aspiration hazard | Classification not possible |
- |
- | - |
[Rationale for the Classification] 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) | Not classified |
- |
- | - | It was classified as "Not classified" from 72-hour EC50 (growth rate) = 1240 mg/L for algae (Pseudokirchneriella subcapitata), 48-hour EC50 = 365 mg/L for crustacea (Daphnia magna), and 96-hour LC50 = 130 mg/L for fish (Danio rerio) (all OECD SIDS: 2008). |
11 | Hazardous to the aquatic environment (Long-term) | Not classified |
- |
- | - | Chronic toxicity data were not obtained. Although appropriate data on acute degradability are not obtained, because no bioaccumulation is estimated (LogKow: -3.34 (EST, PHYSPROP Database: 2018)), and it was classified as "Not classified" in acute toxicity, it was classified as "Not classified." |
12 | Hazardous to the ozone layer | Classification not possible |
- |
- | - | No data available. |
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