A4710212
Heptane , AR,98% , 142-82-5
Synonym(s):
Heptane;n-Heptane, Heptane;n-Heptane, high purity solvents;n-Heptane, Petroleum Heptane
CAS NO.：142-82-5
Empirical Formula: C7H16
Molecular Weight: 100.2
MDL number: MFCD00009544
EINECS: 205-563-8
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | −91 °C(lit.) |
| Boiling point: | 98 °C(lit.) |
| Density | 0.684 g/mL at 20 °C |
| vapor density | 3.5 (vs air) |
| vapor pressure | 40 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 30 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | acetone: miscible(lit.) |
| pka | >14 (Schwarzenbach et al., 1993) |
| form | Liquid |
| color | ≤10(APHA) |
| Specific Gravity | 0.684 (20/4℃) |
| Relative polarity | 0.012 |
| Odor | Gasoline. |
| Odor Threshold | 0.67ppm |
| explosive limit | 1-7%(V) |
| Water Solubility | practically insoluble |
| Thermal Conductivity | 0.1222 W/(m·K) at 25 ℃ |
| λmax | λ: 200 nm Amax: ≤1.0 λ: 225 nm Amax: ≤0.10 λ: 250 nm Amax: ≤0.01 λ: 300-400 nm Amax: ≤0.005 |
| Merck | 14,4659 |
| BRN | 1730763 |
| Henry's Law Constant | 0.901, 1.195, and 1.905(atmm3/mol) at 26.0, 35.8, and 45.0 °C, respectively (dynamic headspace, Hansen et al.,
1995) |
| Exposure limits | ACGIH:TLV-TWA 200 ppm; TLV-STEL 400 ppm OSHA:PEL-TWA 500 ppm (2000 mg/m3) NIOSH:REL-TWA 85 ppm; REL-STEL 440 ppm [15-min] |
| Dielectric constant | 1.9（20℃） |
| Stability: | Stable. Incompatible with oxidizing agents, chlorine, phosphorus. Highly flammable. Readily forms explosive mixtures with air. |
| Major Application | microbiology |
| Cosmetics Ingredients Functions | SOLVENT |
| InChI | 1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3 |
| InChIKey | IMNFDUFMRHMDMM-UHFFFAOYSA-N |
| SMILES | CCCCCCC |
| LogP | 4.660 |
| Surface tension | 21.12mN/m at 293.15K |
| CAS DataBase Reference | 142-82-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Heptane(142-82-5) |
| EPA Substance Registry System | Heptane (142-82-5) |
| Absorption | 0.10 at 225nm 0.40 at 210nm 1.0 at 197nm |
Description and Uses
As standard in testing knock of gasoline engines.
Safety
| Symbol(GHS) |     GHS02,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H313-H315+H320-H335-H336-H304-H410-H225 |
| Precautionary statements | P501-P261-P273-P240-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P312-P391-P331-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P301+P310-P304+P340+P312-P403+P233-P403+P235-P405 |
| target organs | Respiratory system |
| Hazard Codes | F,Xn,N |
| Risk Statements | 11-38-50/53-65-67 |
| Safety Statements | 9-16-29-33-60-61-62-23 |
| RIDADR | UN 1206 |
| OEB | A |
| OEL | TWA: 85 ppm (350 mg/m3), Ceiling: 440 ppm (1800 mg/m3) [15-minute] |
| WGK Germany | 3 |
| RTECS | MI7700000 |
| F | 3-10 |
| Autoignition Temperature | 433 °F |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29011000 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Aquatic Acute 1 Aquatic Chronic 1 Asp. Tox. 1 Flam. Liq. 2 Skin Irrit. 2 STOT SE 3 |
| Hazardous Substances Data | 142-82-5(Hazardous Substances Data) |
| Toxicity | LC (2 hr in air) in mice: 75 mg/l (Lazarew) |
| IDLA | 750 ppm |
| REACH Registrations | Active |
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
