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USA Lab
n-Heptane Pure Grade 99.3%
in Alkanes
$24.00 - $1,199.00
In stockPrice varies by Size.
n-Heptane pure grade, listed at 99.3%, CAS 142-82-5 – declared at 100% w/v in the manufacturer SDS, so this is a single-isomer straight-chain C7 alkane rather than a mixed heptanes cut. Boiling point 98.5 °C, melting point -90.6 °C, flash point -3.89 °C, vapour density 3.46 (air = 1) and autoignition at 285 °C. Supplied in 1 quart, 1 gallon, 5 gallon and 55 gallon drum.
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Description
n-Heptane, pure grade, listed at 99.3%. The manufacturer safety data sheet composition table lists a single component – n-heptane, CAS 142-82-5, at 100% w/v – which distinguishes this grade from mixed heptanes cuts blended from hydrotreated light naphtha. That distinction matters where a defined single-isomer solvent is required, for example as a chromatographic or reference solvent.
Physical data (from the SDS)
- Colourless liquid, characteristic odour
- Boiling point 98.5 °C
- Melting point -90.6 °C
- Flash point -3.89 °C
- Evaporation rate greater than 1
- Vapour pressure 4.6 kPa at room temperature
- Vapour density 3.46 (air = 1)
- Autoignition temperature 285 °C
- Flammability limits 35 g/m3 (LEL) to 280 g/m3 (UEL)
Classification
Category 2 flammable liquid under 29 CFR 1910.1200, with skin irritation Category 2, respiratory sensitisation Category 1 and aquatic toxicity Category 1 acute and chronic. Signal word: Danger. Declared hazard statements are H225, H315, H336, H400 (very toxic to aquatic life) and H410 (very toxic to aquatic life with long lasting effects). The SDS lists oxidising materials as extremely reactive or incompatible.
Container sizes
1 quart, 1 gallon, 5 gallons and a 55 gallon drum.
Frequently asked questions
Is this a single-isomer n-heptane?+
Yes. The SDS composition table lists one component only - n-heptane, CAS 142-82-5, at 100% w/v. The separate mixed heptanes listing declares hydrotreated light naphtha at 90-100% with branched, cyclic and linear heptanes, which is a different product.
What are the boiling point and flash point?+
Boiling point 98.5 °C, melting point -90.6 °C and flash point -3.89 °C per the SDS. Autoignition is 285 °C and vapour pressure is 4.6 kPa at room temperature.
What is the vapour density?+
3.46 relative to air. The SDS directs that vapour not be allowed to accumulate in low or confined areas, since it is heavier than air.
What aquatic hazards are declared?+
Aquatic toxicity Category 1 acute and chronic, with hazard statements H400 (very toxic to aquatic life) and H410 (very toxic to aquatic life with long lasting effects). Handle spills and waste accordingly.
What materials are incompatible?+
The SDS states the product is extremely reactive or incompatible with oxidising materials, and directs that all possible ignition sources be avoided and containers not be pressurised, cut, welded, brazed, soldered, drilled, ground or exposed to heat.
What container sizes are available?+
1 quart, 1 gallon, 5 gallons and a 55 gallon drum.
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