Substance profile
Heptanoic Acid
Heptanoic Acid is a clear oily liquid with a disagreeable, rancid odor; faint tallow-like odor when spectroscopically pure.
01 · Identification
What Heptanoic Acid is
Heptanoic Acid is a clear oily liquid with a disagreeable, rancid odor; faint tallow-like odor when spectroscopically pure. Its molecular formula is C7H14O2 and its molecular weight is 130.18 g/mol. It boils at 222 °C, melts at -7.2 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Heptanoic Acid identifiers and molecular data
Heptanoic Acid CAS number and EC number
Heptanoic Acid molecular formula and molecular weight
03 · GHS classification
Heptanoic Acid hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Heptanoic Acid pictograms and signal word
Heptanoic Acid hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Skin corrosion/irritation GHS chapter 3.2 | Category 1A or 1B or 1C | H314 | GHS05 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Heptanoic Acid hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H314 | Causes severe skin burns and eye damage. |
This page lists only the codes assigned to Heptanoic Acid. 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 Heptanoic Acid
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 Heptanoic Acid 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
Heptanoic Acid precautionary statements
CLP Annex VI assigns 5 precautionary statements to Heptanoic Acid. 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.
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
Heptanoic Acid 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 | хептанова киселина |
| Spanish español | Ácido heptanoico |
| Czech čeština | heptanová kyselina |
| Danish dansk | heptansyre |
| German Deutsch | Heptansäure |
| Estonian eesti | heptaanhape |
| Greek ελληνικά | επτανικό οξύ |
| English English | heptanoic acid |
| French français | acide heptanoïque |
| Croatian hrvatski | heptanska kiselina |
| Italian italiano | acido eptanoico |
| Latvian latviešu | heptānskābe |
| Lithuanian lietuvių | heptano rūgštis |
| Hungarian magyar | heptánsav |
| Maltese Malti | aċidu ettanojku |
| Dutch Nederlands | heptaanzuur |
| Polish polski | kwas heptanowy kwas enantowykwas heksanokarboksylowy |
| Portuguese português | ácido heptanóico |
| Romanian română | acid heptanoic |
| Slovak slovenčina | kyselina heptánová |
| Slovenian slovenščina | heptanojska kislina |
| Finnish suomi | heptaanihappo |
| Swedish svenska | heptansyra |
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
Heptanoic Acid GHS label elements
Everything CLP Annex VI fixes for Heptanoic Acid, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Heptanoic Acid
- Causes severe skin burns and eye damage.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- Immediately call a POISON CENTER/doctor/…
- Do NOT induce vomiting.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Heptanoic Acid in the GHS label constructor →
07 · Health hazards
Heptanoic Acid health hazards and exposure limits
Heptanoic Acid hazard summary
Category of C7-C9 aliphatic aldehydes and carboxylic acids: Members and supporting chemicals demonstrate low acute toxicity by oral, dermal, and inhalation exposures; toxicity in repeated-dose studies only at relatively high levels; no evidence of reproductive toxicity, developmental toxicity, or mutagenicity; [EPA ChAMP: Hazard Characterization] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause pulmonary edema; [ICSC] Emergency treatment: Irritants; [HSDB] Safe when used as a flavoring agent in food; [JECFA] A corrosive substance that can cause injury to the skin and eyes; [CHEMINFO] A highly corrosive substance that can cause severe injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis and pulmonary edema; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Heptanoic Acid 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.
Heptanoic Acid boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 222.2 °C (432 °F) | HSDB | |
| 223 °C (433.4 °F) | ICSC | ||
| 222.2 °C (432 °F) | at 760 mmHg | DOE PAC |
Heptanoic Acid melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -7.17 °C (19.1 °F) | HSDB | |
| -8.89 °C (16 °F) | CAMEO | ||
| -7.5 °C (18.5 °F) | ICSC |
Heptanoic Acid density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.9 g/cm³ | ICSC | |
| 0.9181 g/cm³ | at 20 °C | HSDB | |
| 0.92 g/cm³ | at 20 °C | CAMEO |
Heptanoic Acid solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SOL IN ACETONE, NITRIC ACID | HSDB | |
| Slightyl soluble in carbon tetrachloride; soluble in acetone | HSDB | ||
| In water, 2.82X10+3 mg/L at 25 °C | at 25 °C | HSDB |
Heptanoic Acid vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0098 mmHg | at 20 °C | ICSC |
| 0.0107 mmHg | at 25 °C | HSDB | |
| 0.0056 mmHg | at 25 °C | DOE PAC |
Heptanoic Acid flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 110 °C (230 °F) | open cup | HSDB |
| 93.33 °C (200 °F) | HSDB | ||
| 112.78 °C (235 °F) | above this value | CAMEO |
Heptanoic Acid autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 380 °C (716 °F) | HSDB | |
| 255 °C (491 °F) | ICSC |
Heptanoic Acid lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.1 % by volume | ICSC | |
| Combustible | HSDB |
Heptanoic Acid upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 10.1 % by volume | ICSC |
Heptanoic Acid odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Aroma threshold values: Detection: 640 ppb to 10.4 ppm. | HSDB | |
| The Guide in the Emergency Response Guidebook is for "Corrosive liquid, acidic, organic, n.o.s." Odor threshold (detection) = 640 ppb to 10.4 ppm | Haz-Map |
Heptanoic Acid corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Heptanoic Acid 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.
Heptanoic Acid fire potential
Combustible
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Heptanoic Acid storage and handling
Heptanoic Acid safe storage
Separated from food and feedstuffs. See Chemical Dangers.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Heptanoic Acid storage conditions
Separated from bases, food and feedstuffs.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Heptanoic Acid in the storage compatibility matrix →
11 · Questions
Heptanoic Acid — frequently asked questions
What is the CAS number of Heptanoic Acid?
The CAS number of Heptanoic Acid is 111-14-8. Its EC number is 203-838-7.
What is the chemical formula of Heptanoic Acid?
The molecular formula of Heptanoic Acid is C7H14O2 and its molecular weight is 130.18 g/mol.
What does a Heptanoic Acid label have to show?
Under CLP Annex VI the label for Heptanoic Acid carries the pictogram Corrosion and the signal word is Danger.
Is Heptanoic Acid flammable?
CLP Annex VI assigns Heptanoic Acid 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 110 °C (230 °F), open cup (HSDB).
Is Heptanoic Acid a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Heptanoic Acid. 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 boiling point of Heptanoic Acid?
The boiling point reported for Heptanoic Acid is 222.2 °C (432 °F) (HSDB).
What is the melting point of Heptanoic Acid?
The melting point reported for Heptanoic Acid is -7.17 °C (19.1 °F) (HSDB).
How should Heptanoic Acid be stored?
Separated from bases, food and feedstuffs. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Heptanoic Acid
Keep going: substances starting with H, or search the whole database by name, CAS number, pictogram or signal word.