Phosphoric Acid Orthophosphoric Acid

Phosphoric acid

Phosphoric acid orthophosphoric acid Introduction:

Colorless transparent or slightly light-colored thick liquid, pure phosphoric acid is colorless crystal, odorless, with sour taste. The main raw materials for phosphoric acid are phosphate ore (mainly composed of calcium fluorophosphate Ca10F2 (PO4) 6) and inorganic acids mainly composed of sulfuric acid.

Melting point (℃): 42.35 (pure product)

Boiling point (℃): 261

Relative density 1.70

Relative density (water=1): 1.87 (pure product)

Relative vapor density (air=1): 3.38

Saturated vapor pressure (kPa): 0.67 (25 ℃, pure product)

Solubility: Miscible with water and soluble in ethanol

Phosphoric acid orthophosphoric acid use:

Mainly used in phosphate industry, electroplating, polishing industry, sugar industry, composite fertilizer and so on.In the food industry as sour agent, yeast nutrition agent, etc.

Phosphoric acid orthophosphoric acid Security protection:

Phosphoric acid has no strong oxidizing or corrosive properties and is considered a relatively safe acid with low toxicity and irritancy.

LD50: 1530mg/kg (rat oral); 2740mg/kg (rabbit transdermal)

Irritation: Rabbit transdermal 595mg/24 hours, severe irritation; 119mg severe irritation to rabbit eyes.

Be careful to prevent eye contact, skin contact, and entrance when in contact.

Inflammable when encountering H pore forming agent; Toxic phosphorus oxide smoke is emitted when heated.

Phosphoric acid vapor can cause nasal mucosal atrophy; Has a strong corrosive effect on the skin and can cause inflammatory skin diseases; Can cause systemic poisoning.

If phosphoric acid vapor enters the eyes, it should be immediately rinsed with a large amount of physiological saline, and then sent to the hospital for treatment

The maximum allowable concentration in the air is 1mg/m. Production personnel should wear protective equipment during work, such as work clothes, rubber gloves, rubber or plastic aprons, and long rubber boots. Pay attention to protecting respiratory organs and skin. If it accidentally splashes on the skin, immediately rinse with plenty of water. After washing with phosphoric acid, red mercury solution or gentian violet solution can generally be applied to the affected area. In severe cases, seek medical attention immediately.

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