n-Heptano ≥99.3%, SPECTRONORM® para espectroscopia
Proveedor: VWR Chemicals
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Peligro
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Filtrado por 0,2 µm. Acondicionado en nitrógeno.
84712.320EA
341
EUR
84712.320
84712.260
n-Heptano ≥99.3%, SPECTRONORM® para espectroscopia
n-Heptano
SPECTRONORM solvents have extensive specifications to meet the highly demanding requirements of UV applications.
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Formula:
H₃C(CH₂)₅CH₃ Pto. Ebullición: 98,4 °C (1013 hPa) Pto. de fusión: –90,6 °C Densidad: 0,6838 g/cm³ (20 °C) Pto. de inflamación: –4 °C Temperatura de almacenaje: Ambiente |
Número MDL:
MFCD00009544 Núm. CAS: 142-82-5 EINECS: 205-563-8 UN: 1206 ADR: 3,II IR: 01-2119457603-38 Índice Merck: 13,04679 |
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Resultados test especificaciones
| Assay (GC) | ≥ 99,3 % |
| Acidity | ≤ 0,0001 meq/g |
| Alkalinity | ≤ 0,0002 meq/g |
| Colouration | ≤ 10 APHA |
| Evaporation residue | ≤ 2 ppm |
| Water | ≤ 50 ppm |
| Absorbance (200 nm) | ≤ 0,70 |
| Absorbance (210 nm) | ≤ 0,26 |
| Absorbance (220 nm) | ≤ 0,10 |
| Absorbance (228 nm) | ≤ 0,05 |
| Absorbance (from 245 nm) | ≤ 0,01 |
| Transmittance (200 nm) | ≥ 20 % |
| Transmittance (210 nm) | ≥ 55 % |
| Transmittance (220 nm) | ≥ 80 % |
| Transmittance (228 nm) | ≥ 90 % |
| Transmittance (from 245 nm) | ≥ 98 % |
| Fluorescence (as quinine) (254 nm) | ≤ 1,0 ppb |
| Fluorescence (as quinine) (365 nm) | ≤ 1,0 ppb |
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