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Hentriacontane, also called untriacontane, is a solid, long-chain alkane hydrocarbon with the structural formula CH3(CH2)29CH3. It is the main component of Paraffin wax. It is found in a variety of plants, including peas (Pisumsativum), Acacia senegal, Gymnemasylvestre and others, and also comprises about 8–9% of beeswax. It has 10,660,307,791 constitutional isomers.[4]

Hazard Statements

/Higher alkanes/ may cause eye and skin irritation.

First Aid

For immediate first aid:

• Ensure adequate decontamination.

• If not breathing, perform artificial respiration using appropriate equipment.

• Flush contaminated eyes with gently flowing water.

• Do not induce vomiting; if vomiting occurs, position the patient to prevent aspiration.

• Maintain normal body temperature and seek medical attention.

For basic treatment:

• Establish airway, suction if necessary.

• Assist ventilation if needed, administer oxygen.

• Monitor for pulmonary edema, treat as necessary.

• Treat eye contamination by flushing with water or saline.

• Rinse mouth and administer water for ingestion, administer activated charcoal.

• Treat frostbite with rapid rewarming techniques.

For advanced treatment:

• Consider intubation for airway control in severe cases.

• Use positive-pressure ventilation if beneficial.

• Monitor cardiac rhythm, treat arrhythmias.

• Start IV fluid administration, monitor for signs of hypovolemia or fluid overload.

• Treat seizures with appropriate medication.

• Use proparacaine hydrochloride for eye irrigation.

Emergency and supportive measures:

• Provide basic supportive care for symptomatic patients.

• Monitor and admit symptomatic patients to intensive care if necessary.

• Use caution with epinephrine and beta-adrenergic medications.

• Manage pulmonary aspiration symptoms as they arise.

• Treat ingestion and injection cases accordingly.

Chemical and Physical Properties

Source: PubChem