Question

What are the properties of formaldehyde ​

Answer 1

Answer:

PHYSICAL AND CHEMICAL PROPERTIES

Formaldehyde is a flammable, colorless gas at room temperature and has a pungent, suffocating odor (Budavari et al. 1989). Odor thresholds ranging from 0.5 to 1.0 parts per million (ppm) (ATSDR 1999) and 0.06 to 0.5 ppm (Gerberich et al. 1994) have been reported.

Conversion factors: 1 ppm = 1.23 mg/m3; 1 mg/m3 = 0.81 ppm

Molecular formula: HCHO

Melting point: –92°C

Boiling point: –19.5°C

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Answer 2

Answer:

The properties of formaldehyde:

• Formaldehyde reacts with a base like sodium hydroxide forms sodium formate and methanol. The chemical equation is given below.
• 2HCHO + NaOH → HCOONa + CH3OH
• Formaldehyde reacts with ammonia forms formamidine and water. The chemical equation is given below.
• 6HCHO + 4NH3 → (CH2)6N4 + 6H2O