Substance profile
m-Toluidine
m-Toluidine is a colorless to light yellow liquid with an aromatic, amine-like odor.
01 · Identification
What m-Toluidine is
m-Toluidine is a colorless to light yellow liquid with an aromatic, amine-like odor. Its molecular formula is C7H9N and its molecular weight is 107.15 g/mol. It boils at 203 °C, melts at -31.3 °C, is very soluble in water.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 2nd degree.
02 · Identifiers
m-Toluidine identifiers and molecular data
m-Toluidine CAS number and EC number
m-Toluidine molecular formula and molecular weight
Other names for m-Toluidine
- 3-aminotoluene
03 · GHS classification
m-Toluidine hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
m-Toluidine pictograms and signal word
m-Toluidine hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 3 | H301 | GHS06 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 3 | H311 | GHS06 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 3 | H331 | GHS06 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 2 | H373 | GHS08 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
m-Toluidine hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H331 | Toxic if inhaled. |
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
This page lists only the codes assigned to m-Toluidine. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for m-Toluidine
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of m-Toluidine issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
m-Toluidine precautionary statements
CLP Annex VI assigns 14 precautionary statements to m-Toluidine. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
m-Toluidine name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | m -толуидин 3-аминотолуен |
| Spanish español | m -Toluidina 3-aminotolueno |
| Czech čeština | m -toluidin 3-toluidin |
| Danish dansk | m -toluidin 3-aminotoluen |
| German Deutsch | m -Toluidin 3-Aminotoluol |
| Estonian eesti | m -toluidiin 3-aminotolueen |
| Greek ελληνικά | m -τολουιδίνη 3-αμινοτολουόλιο |
| English English | m -toluidine 3-aminotoluene |
| French français | m -toluidine 3-aminotoluène |
| Croatian hrvatski | m -toluidin 3-aminotoluen |
| Italian italiano | m -toluidina 3-aminotoluene |
| Latvian latviešu | m -toluidīns 3-aminotoluols |
| Lithuanian lietuvių | m -toluidinas 3-aminotoluenas |
| Hungarian magyar | m -toluidin 3-aminotoluol |
| Maltese Malti | m -toluidina 3-amminotoluwen |
| Dutch Nederlands | m -toluïdine 3-aminotolueen |
| Polish polski | m -toluidyna 3-aminotoluen3-metyloanilina |
| Portuguese português | m -toluidina 3-aminotolueno |
| Romanian română | m -toluidină 3-aminotoluen |
| Slovak slovenčina | meta -toluidín 3-metylanilín |
| Slovenian slovenščina | m -toluidin 3-aminotoluen |
| Finnish suomi | m -toluidiini 3-aminotolueeni |
| Swedish svenska | m -toluidin 3-aminotoluen |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
m-Toluidine GHS label elements
Everything CLP Annex VI fixes for m-Toluidine, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
m-Toluidine
- Toxic if inhaled.
- Toxic in contact with skin.
- Toxic if swallowed.
- May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Very toxic to aquatic life.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Use only outdoors or in a well-ventilated area.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- IF INHALED:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention if you feel unwell.
- Rinse mouth.
- Wash with plenty of water/…
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open m-Toluidine in the GHS label constructor →
07 · Health hazards
m-Toluidine health hazards and exposure limits
m-Toluidine hazard summary
The toxicity of m-toluidine is similar to that of o-toluidine. Given intravenously to cats, a dose of 27 mg/kg induces 60% methemoglobinemia. Methemoglobinemia and anemia have been reported after occupational exposure. Listed in the table Examples of Industrial Chemicals for Which Methemoglobin Formation is NOT the Principal Cause of Toxicity; [ACGIH] Solid form causes first degree burns on short exposure; [CHRIS] A skin and eye irritant; Can induce methemoglobinemia; [ICSC]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
m-Toluidine occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | N.D. | The National Institute for Occupational Safety and Health (NIOSH) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
m-Toluidine properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
m-Toluidine boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 203.3 °C (397.9 °F) | HSDB | |
| 202.78 °C (397 °F) | NIOSH | ||
| 203.39 °C (398.1 °F) | at 760 mmHg | CAMEO |
m-Toluidine melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -31.3 °C (-24.3 °F) | HSDB | |
| -30.56 °C (-23 °F) | NIOSH | ||
| -30.39 °C (-22.7 °F) | CAMEO |
m-Toluidine density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.999 g/cm³ | NIOSH | |
| 0.9889 g/cm³ | at 20 °C | HSDB | |
| 0.989 g/cm³ | at 20 °C | CAMEO |
m-Toluidine solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Very soluble in acetone, benzene, diethyl ether, ethanol | HSDB | |
| Soluble in alcohol, ether, dilute acids | HSDB | ||
| In water, 1.50X10+4 mg/L at 20 °C | at 20 °C | HSDB |
m-Toluidine vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.303 mmHg | at 25 °C | HSDB |
| 0.1275 mmHg | at 25 °C | ICSC | |
| 1 mmHg | at 41 °C | DOE PAC |
m-Toluidine flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 86.11 °C (187 °F) | HSDB | |
| 85.56 °C (186 °F) | CAMEO |
m-Toluidine autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 481 °C (897.8 °F) | HSDB | |
| 481.67 °C (899 °F) | CAMEO | ||
| 480 °C (896 °F) | ICSC |
m-Toluidine lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.1 % by volume | HSDB |
m-Toluidine upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 6.6 % by volume | HSDB |
m-Toluidine vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.9 (air = 1) | HSDB | |
| 3.7 (air = 1) | ICSC |
m-Toluidine odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Odor Threshold Low: 0.46 [ppm] | Haz-Map | |
| Odor Threshold High: 5.9 [ppm] | Haz-Map | ||
| Odor threshold values from American Industrial Hygiene Association | Haz-Map |
m-Toluidine critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 435.85 °C (816.5 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
m-Toluidine fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
m-Toluidine fire potential
Flammable when exposed to heat or flame.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
m-Toluidine storage and handling
m-Toluidine safe storage
Provision to contain effluent from fire extinguishing. Separated from strong oxidants, strong acids and food and feedstuffs. Well closed. Ventilation along the floor. Keep in the dark. Store in an area without drain or sewer access.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
m-Toluidine storage conditions
/Store/ separated from strong oxidants, strong acids, food and feedstuffs. Cool. Dry. Well closed. Ventilation along the floor.
Source: Hazardous Substances Data Bank (HSDB)
m-Toluidine incompatible materials
Can react vigorously on contact with oxidizing materials.
Source: Hazardous Substances Data Bank (HSDB)
m-Toluidine reactivity
M-TOLUIDINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides. Can react vigorously with oxidizing reagents. Emits toxic fumes of oxides of nitrogen when heated to decomposition [Lewis, 3rd ed., 1993, p. 1253].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check m-Toluidine in the storage compatibility matrix →
11 · Questions
m-Toluidine — frequently asked questions
What is the CAS number of m-Toluidine?
The CAS number of m-Toluidine is 108-44-1. Its EC number is 203-583-1.
What is the chemical formula of m-Toluidine?
The molecular formula of m-Toluidine is C7H9N and its molecular weight is 107.15 g/mol.
What does a m-Toluidine label have to show?
Under CLP Annex VI the label for m-Toluidine carries the pictograms Skull and crossbones, Health hazard and Environment and the signal word is Danger.
Is m-Toluidine flammable?
CLP Annex VI assigns m-Toluidine no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it. The flash point reported for it is 86.11 °C (187 °F) (HSDB).
Is m-Toluidine a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for m-Toluidine. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the exposure limit for m-Toluidine?
The US occupational exposure limit reported for m-Toluidine is none See Appendix G (The National Institute for Occupational Safety and Health (NIOSH)). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of m-Toluidine?
The boiling point reported for m-Toluidine is 203.3 °C (397.9 °F) (HSDB).
What is the melting point of m-Toluidine?
The melting point reported for m-Toluidine is -31.3 °C (-24.3 °F) (HSDB).
How should m-Toluidine be stored?
/Store/ separated from strong oxidants, strong acids, food and feedstuffs. Cool. Dry. Well closed. Ventilation along the floor. (Hazardous Substances Data Bank (HSDB))
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