GHS Classification Result

Chemical Name:Mercaptoacetic acid
CAS:68-11-1

Result:
ID: 214
Classifier: Inter-ministerial Committee on GHS
Year Classified: FY2006
Reference Manual: GHS Classification Manual (10 Feb, 2006)

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives Not applicable - - - - Containing no chemical groups with explosive properties
2 Flammable gases (including chemically unstable gases) Not applicable - - - - Classified as "liquid" according to GHS definition
3 Aerosols Not applicable - - - - Not aerosol products
4 Oxidizing gases Not applicable - - - - Classified as "liquid" according to GHS definition
5 Gases under pressure Not applicable - - - - Classified as "liquid" according to GHS definition
6 Flammable liquids Not classified - - - - The flash point is 126degC (open cup flash test) (ICSC (1999))
7 Flammable solids Not applicable - - - - Classified as "liquid" according to GHS definition
8 Self-reactive substances and mixtures Not applicable - - - - Containing no chemical groups with explosive or self-reactive properties
9 Pyrophoric liquids Not classified - - - - Not pyrophoric when in contact with air at ordinary temperatures: the auto-ignition temperature is 350degC (ICSC, 1999)
10 Pyrophoric solids Not applicable - - - - Classified as "liquid" according to 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 applicable - - - - Containing no metals or metalloids (B, Si, P, Ge, As, Se, Sn, Sb, Te, Bi, Po, At)
13 Oxidizing liquids Not applicable - - - - Organic compounds containing oxygen (but not fluorine and chlorine), with the oxygen bound to carbon and hydrogen (but not to other elements)
14 Oxidizing solids Not applicable - - - - Classified as "liquid" according to GHS definition
15 Organic peroxides Not applicable - - - - Organic compounds containing no "-O-O-" structure
16 Corrosive to metals Classification not possible - - - - Cannot be classified due to lack of data, though the substance acts on steel, stainless steel and aluminum according to ICSC (1999). Classified into "Corrosive Substances" by the UN Recommendations on the Transport of Dangerous Goods. However, the category includes skin corrosivity, and it is unclear whether the substance is classified as "metal" corrosive (UN#1940).

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity (Oral) Category 3 Danger H301: Toxic if swallowed P301+P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P321: Specific treatment (see ... on this label).
P330: Rinse mouth.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the rat LD50 (oral route) value of 73mg/kg representing the lower of the two testing data, 73mg/kg and 261mg/kg (CERI Hazard Data 2001-10 (2001)).
1 Acute toxicity (Dermal) Category 3 Danger H311: Toxic in contact with skin P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P322: Specific treatment (see ... on this label).
P361: Remove/Take off immediately all contaminated clothing.
P363: Wash contaminated clothing before reuse.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the rabbit LD50 (dermal route) value of 848mg/kg (CERI Hazard Data 2001-10 (2002)).
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Due to the fact that the substance is "liquid" according to the GHS definition and inhalation of its gas is not expected.
1 Acute toxicity (Inhalation: Vapours) Category 1 Danger H330: Fatal if inhaled P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P284: Wear respiratory protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P320: Specific treatment is urgent (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the testing data of rat LC50 (4 hour-inhalation of vapour) value of 56.7ppm was lower than 90% of the saturated vapour concentration (115ppm) under a saturated vapour pressure of 11.6Pa (25degC), the substance was considered as "vapour containing substantially no mist" and was classified based on standard values of gas.
1 Acute toxicity (Inhalation: Dusts and mists) Classification not possible - - - - No data available
2 Skin corrosion/irritation Category 1A-1C Danger H314: Causes severe skin burns and eye damage P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P321: Specific treatment (see ... on this label).
P363: Wash contaminated clothing before reuse.
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the description in the report on guinea pig skin irritation tests (CERI Hazard Data 2001-10 (2002)): "severely irritating." Although it is unclear whether the effects are reversible or not, the substance is classified into Category 1A-1C, given the pH value of a 10% aqueous solution is 1.6. It should be placed in Category 1A from the viewpoint of safety if further classification is needed.
3 Serious eye damage/eye irritation Category 1 Danger H318: Causes serious eye damage P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
Based on the description in the report on rabbit eye irritation tests (CERI Hazard Data 2001-10 (2002)): "The pH value of a 10% aqueous solution is 1.6." The substance is thus considered "corrosive."
4 Respiratory sensitization Classification not possible - - - - No data available
4 Skin sensitization Category 1 Warning H317: May cause an allergic skin reaction P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P321: Specific treatment (see ... on this label).
P363: Wash contaminated clothing before reuse.
P501: Dispose of contents/container to ...
Based on human epidemiological evidence of skin sensitization (CERI Hazard Data 2001-10 (2002)).
5 Germ cell mutagenicity Classification not possible - - - - Based on the absence of data on in vivo mutagenicity/genotoxicity tests and negative data on mutagenicity tests in vitro (reverse mutation tests and chromosome aberration tests), described in NTP DB (Access on Mar., 2006), CERI Hazard Data 2001-10 (2002) and IUCLID (2000).
6 Carcinogenicity Classification not possible - - - - Insufficient data available
7 Reproductive toxicity Classification not possible - - - - No data available
8 Specific target organ toxicity - Single exposure Category 1 (respiratory system, circulatory system, central nervous system, liver) Danger H370: Causes damage to organs (respiratory system, circulatory system, central nervous system, liver) P307+P311: IF exposed: Call a POISON CENTER or doctor/physician.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P321: Specific treatment (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
Based on the human evidence: "percutaneous absorption induced tachycardia, shallow respiration and oliguresis; deaths from cardiovascular collapse have also been reported" (CERI Hazard Data 2001-10 (2002)), and the evidence from animal studies including "tremor and spasm", "effects on the liver and irritation of the gastrointestinal tract were found at necropsy" (CERI Hazard Data 2001-10 (2002)) and "dyspnea" (RTECS (2004)). The effects on experimental animals were observed at dosing levels within the guidance value ranges for Categories 1 and 2.
9 Specific target organ toxicity - Repeated exposure Classification not possible - - - - Insufficient data available
10 Aspiration hazard Classification not possible - - - - No data available

ENVIRONMENTAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
11 Hazardous to the aquatic environment (Acute) Category 3 - - H402: Harmful to aquatic life P273: Avoid release to the environment.
P501: Dispose of contents/container to ...
It was classified into Category 3 from 96 hours LC50=30mg/L of the fish (Fathead Minnows) (CERI Hazard Data, 2002).
11 Hazardous to the aquatic environment (Long-term) Not classified - - - - Since there was rapidly degrading (the decomposition by BOD: 100% (Existing Chemical Safety Inspections Data)) and the bio-accumulation was low (log Kow=0.09 (PHYSPROP Database, 2005)), it was claasified into Not classified.


NOTE:
* Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users.
* This is a provisional English translation of classification results and is subject to revision without notice.
* The responsibility for any resulting GHS labelling and SDS referenced from this site is with users.

Reference:
Reference Manual

Definitions / Abbreviations

Model SDS by MHLW

MHLW Website (in Japanese Only)


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