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N-Heptane Specification

N-Heptane is colorless transparent liquid. There are three kinds of N-Heptane Specification
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    N-Heptane is colorless transparent liquid. There are three kinds of N-Heptane Specification:

    HPLC Specification

    Purity,%.........................................................................≥99.5
    Density,(20 centi-degree)g/ml........................................0.683~0.685
    Refractive index(n20D)...................................................1.387~1.389
    Boiling point , centi-degree .............................................99±1
    Evaporation residue,%....................................................≤0.001
    Moisture content (H2O),%................................................≤0.02

    GR Specification
    Purity,%.................................................................≥99.5
    Density,(20 centi-degree)g/ml................................0.683~0.685
    Refractive index(n20D)...........................................1.357~1.359
    Boiling point , centi-degree ....................................97.0~99.0
    Sulfur(S),%..............................................................≤0.002
    Evaporation residue,%.............................................≤0.002
    Moisture content (H2O),%........................................≤0.03
    Acidity(as acetic)......................................................≤0.005
    Easy carbonized materials.........................................passes test

    AR Specification
    Purity,%.................................................................≥98.5
    Density,(20 centi-degree)g/ml................................0.683~0.685
    Refractive index(n20D)...........................................1.387~1.388
    Boiling point , centi-degree ....................................96.5~98.5
    Sulfur(S),%..............................................................≤0.005
    Evaporation residue,%.............................................≤0.05
    Moisture content (H2O),%........................................≤0.01
    Easy carbonized materials........................................passes test

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