1.08323
Toluène
EMPLURA®
Synonyme(s) :
Toluol, Methylbenzene
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A propos de cet article
InChI
1S/C7H8/c1-7-5-3-2-4-6-7/h2-6H,1H3
SMILES string
Cc1ccccc1
InChI key
YXFVVABEGXRONW-UHFFFAOYSA-N
vapor density
3.2 (vs air)
vapor pressure
22 mmHg ( 20 °C), 26 mmHg ( 25 °C)
product line
EMPARTA®
assay
≥99% (GC)
form
liquid
autoignition temp.
997 °F
expl. lim.
7 %
dilution
(low-cost alternative, for basic applications)
impurities
≤0.002% Free acid (as HCl)
refractive index
n/D 1.496 (lit.)
kinematic viscosity
0.7 cSt(20 °C)
bp
110-111 °C (lit.)
mp
-93 °C (lit.)
transition temp
flash point 4 °C
solubility
0.52 g/L
density
0.865 g/mL at 25 °C (lit.)
storage temp.
2-30°C
Quality Level
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Catégories apparentées
General description
Application
- Metal Extraction and Digestion: Nitric acid (60%) is extensively used for the extraction and digestion of metals from various samples. This application is crucial for preparing samples for subsequent analysis by techniques such as Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Atomic Absorption Spectroscopy (AAS). Recent studies have compared the efficiency of nitric acid treatment with microwave digestion for extracting metals from bioprocess samples, demonstrating its effectiveness in achieving high recovery rates and accuracy (Mohammad and Madhavarao, Analytical Biochemistry, 2024).
- Food and Beverage Analysis: Nitric acid is employed in the analysis of food and beverage samples to determine the mineral composition. For instance, the acid is used in microwave-assisted decomposition of foods like rice, carrots, and chayote, facilitating the determination of elements such as aluminum, cadmium, chromium, copper, iron, and lead. This application is vital for ensuring food safety and compliance with health standards (Serafim et al., Brazilian Journal of Analytical Chemistry, 2024).
Packaging
Analysis Note
Identity (IR): conforms
Free acid (as HCl): ≤ 0.002 %
Density (d 20 °C/ 4 °C): 0.867
Readily carbonizable substances: conforms
Legal Information
signalword
Danger
Hazard Classifications
Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3
target_organs
Central nervous system
Classe de stockage
3 - Flammable liquids
wgk
WGK 3
flash_point_f
39.9 °F - closed cup
flash_point_c
4.4 °C - closed cup
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