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Carbon Disulfide (Pure >99%)
Other Names: Carbon bisulfide
CAS Number: 75-15-0
Sum Formula: CS₂
Molar Mass: 76.13 g/mol
Appearance: Colorless to faintly yellow volatile liquid
Carbon disulfide is a highly volatile, flammable, and toxic liquid used primarily as a solvent and intermediate in chemical synthesis. Pure grades (>99%) are critical for laboratory and industrial applications where high purity is required.
Chemical and Physical Properties
Density: 1.26 g/cm³ (at 20°C)
Melting Point: −111.5°C
Boiling Point: 46.3°C
Solubility in Water: Slightly soluble
Solubility in Other Solvents: Miscible with ethanol, ether, chloroform, and benzene
Odor: Sweet, ether-like (pure form); impure material has a foul odor
Vapor Pressure: High (400 mmHg at 20°C)
Flash Point: −30°C (closed cup)
Auto-Ignition Temperature: ~100°C
Applications
Organic Synthesis: Used as a starting material for the production of carbon tetrachloride, xanthates, and other sulfur-containing compounds.
Industrial Solvent: Employed in the extraction of fats, resins, and rubber.
Laboratory Use: Applied as a reagent and solvent for specialized reactions and studies involving sulfur chemistry.
Material Science: Investigated in advanced materials production and treatment processes.
Safety
Signal Word: Danger
H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H332 (64.5%): Harmful if inhaled [Warning Acute toxicity, inhalation]
H361 (86.1%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
H361fd (13.9%): Suspected of damaging fertility; Suspected of damaging the unborn child [Warning Reproductive toxicity]
H372 (99.9%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P318, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P235, P405, and P501
Handling and Storage
Storage Conditions:
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Store in tightly sealed containers under an inert atmosphere (e.g., nitrogen).
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Keep in a cool, dry, and well-ventilated area away from sources of ignition, strong oxidizing agents, and acids.
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Recommended storage temperature: below 25°C.
Handling Precautions:
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Use explosion-proof ventilation systems and proper PPE, including respirators where necessary.
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Work in a chemical fume hood due to its toxicity and high volatility.
