
Formaldehyde ( Methanal ) Formalin Aqueous Biology 37% - 500ml
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Description
Formaldehyde (Methanal) Solution 37%
Other Names: Formalin, Methanal solution, Formol
CAS Number: 50-00-0
EC Number: 200-001-8
Chemical Formula: CH₂O
Molar Mass: 30.03 g/mol
Appearance: Colorless, clear liquid with a strong, pungent odor
Chemical and Physical Properties
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Concentration: ~37% formaldehyde in water, typically stabilized with 10–15% methanol
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Density: ~1.09 g/cm³
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Melting Point: -15°C
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Boiling Point: ~96°C (for the aqueous solution)
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Solubility in Water: Completely miscible
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Solubility in Other Solvents: Miscible with alcohols and ethers
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Vapor Pressure: ~20–30 mmHg at 25°C
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Odor: Strong, irritating, and pungent
Applications
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Fixative in Biology: Commonly used in biological laboratories to preserve tissue specimens.
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Chemical Synthesis: Used as a starting material in the production of resins, plastics, and other organic compounds.
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Disinfection: Acts as a disinfectant and sterilizing agent in certain industrial and laboratory environments.
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Textiles and Paper: Employed in the processing and treatment of fabrics and paper products.
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Tanning: Used in leather treatment processes.
Safety
Signal Word: Danger
H301 (83.1%): Toxic if swallowed [Danger Acute toxicity, oral]
H311 (83.1%): Toxic in contact with skin [Danger Acute toxicity, dermal]
H314 (83.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H317 (90.5%): May cause an allergic skin reaction [Warning Sensitization, Skin]
H318 (48.3%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H330 (14%): Fatal if inhaled [Danger Acute toxicity, inhalation]
H331 (77.6%): Toxic if inhaled [Danger Acute toxicity, inhalation]
H341 (19%): Suspected of causing genetic defects [Warning Germ cell mutagenicity]
H350 (19%): May cause cancer [Danger Carcinogenicity]
H351 (64.1%): Suspected of causing cancer [Warning Carcinogenicity]
P203, P260, P261, P262, P264, P264+P265, P270, P271, P272, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P320, P321, P330, P333+P317, P361+P364, P362+P364, P363, P403+P233, P405, and P501
Handling and Storage
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Storage Conditions: Store in tightly sealed containers in a cool, dry, well-ventilated area. Keep away from heat, sparks, open flame, and incompatible materials such as strong oxidizers and acids.
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Handling Precautions: Use only with adequate ventilation. Avoid inhalation and contact with skin or eyes. Handle under a fume hood if possible.