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Is Phosphoric acid harmful to humans?

Views: 7     Author: Site Editor     Publish Time: 2022-07-20      Origin: Site


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What is Phosphoric acid?

Phosphoric acid or orthophosphoric acid, is a common inorganic acid, is a medium-strong acid.

Phosphoric acid or orthophosphoric acid, is a common inorganic acid, is a medium-strong acid.Phosphoric acid is mainly used in pharmaceutical, food, fertilizer and other industries, including as a rust resistance agent, food additives, dental and orthopedic surgery, EDIC preservatives, electrolytes, welding flux, dispersants, industrial preservatives, fertilizer as raw materials and component home cleaning products.Can be also used as a chemical reagent.

Is Phosphoric acid safe to consumer?

Phosphoric acid is safe to consume unless Phosphoric acid contact the eye and skin.

Inhalation: Not expected to be an inhalation hazard unless heated or misted. Can irritate the nose and throat.

Skin Contact: CORROSIVE. Contact can cause pain, redness, burns, and blistering. Permanent scarring can result. A severe exposure can cause death.

Eye Contact: CORROSIVE. Contact causes severe burns with redness, swelling, pain and blurred vision. Permanent damage including blindness can result.

Ingestion: Can burn the lips, tongue, throat and stomach. Symptoms may include nausea, vomiting, stomach cramps and diarrhea. Permanent damage can result.

Effects of Long-Term (Chronic) Exposure: At low concentrations: Can cause dry, red, cracked skin (dermatitis) following skin contact.

How much Phosphoric acid is in coke?

Phosphoric acid and its salts account for 25% of all the acid used in the food industries. The main use of phosphoric acid is in the soft drink industry, particularly cola and root beer beverages. Phosphoric acid functions as an acidulant and provides the specific tart note to the flavor of these products.

The concentration of phosphoric acid in coke is very low (around 0.055%). Compare this to the acid content of an orange, which is around 1%. It’s also worth emphasising that we don’t hold food or drink in our mouths for a long period of time, so this lessens the deleterious effects of any acids on tooth enamel.

What is Phosphoric acid used for?

The dominant use of phosphoric acid is for fertilizers, consuming approximately 90% of production.

Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. Soft drinks containing phosphoric acid, which would include Coca-Cola, are sometimes called phosphate sodas or phosphates. Phosphoric acid in soft drinks has the potential to cause dental erosion.Phosphoric acid also has the potential to contribute to the formation of kidney stones, especially in those who have had kidney stones previously.

Specific applications of phosphoric acid include:

  •  in anti-rust treatment by phosphate conversion coating or passivation

  •  to prevent iron oxidation by means of the Parkerization process

  •  as an external standard for phosphorus-31 nuclear magnetic resonance

  •  in phosphoric acid fuel cells

  • in activated carbon production

  •  in compound semiconductor processing, to etch Indium gallium arsenide selectively with respect to indium phosphide

  •  in microfabrication to etch silicon nitride selectively with respect to silicon dioxide

  • as a pH adjuster in cosmetics and skin-care products

  •  as a sanitizing agent in the dairy, food, and brewing industries

Health Hazards Associated with Phosphoric Acid

Phosphoric acid can be very hazardous in the case of skin contact, eye contact, and ingestion. It can also cause irritation if vapors are inhaled. This chemical can cause damage to the skin, eyes, mouth, and respiratory tract. Because of the potential hazards posed by this chemical, it is important to use care when handling it.

Repeated or prolonged exposure to phosphoric acid mist can lead to chronic eye irritation, severe skin irritation, or prolonged respiratory tract issues. To protect your health when handling this potentially hazardous chemical, it is important to use caution in the form of personal protective equipment (PPE).

What is phosphoric acid used for in food?

Most species of known bacteria grow at an ideal pH of between 6.5 and 7.0 on the pH scale.Adding non-toxic acids to beverages and food products can lower the pH to 2.5, thereby reducing the chance of bacteria growing in sugar-rich drinks and food.

Phosphoric acid is a good additive in soft drinks and some processed foods because it's inexpensive and non-toxic. It also adds a tangy sour flavour, similar to that of citric acid in fruits.

What is the pH of phosphoric acid?

Just like other acids, the pH of a phosphoric acid solution is directly proportional to the concentration of the solute. It also varies depending on other factors such as temperature and the types of ions that dissociate when the acidic substance is dissolved. For example, at 0.1 N aqueous solution, phosphoric acid has a pH of 1.5.

However, this only tells you the concentration of the hydronium ions at a logarithmic scale; it does not indicate the type of ions and their relative dissociations. It's important to note that phosphoric acid is a triprotic acid, meaning it has three acidic protons with corresponding pKa values.

How do you treat a phosphoric acid burn?

Highly concentrated phosphoric acid can burn the skin and may cause serious injuries. It's therefore important to take all necessary precautions when handling this chemical at high concentrations. This means using goggles and gloves, as well as a laboratory apron or gown.

If your skin is exposed to highly concentrated phosphoric acid, immediately flush the affected area with lukewarm water for at least 30 minutes or until proper medical treatment is applied.

Is phosphoric acid bad for you?

According to the Joint The Food and Agriculture Organization of the United Nations and the World Health Organization Expert Committee on Food Additives , "there is ample evidence to support the safety of the addition of small quantities of phosphoric acid to food. Thus, the use of 0.01-0.02%6 as a sequestrant, an antioxidant or "synergist" inantioxidant mixtures should present no health hazards whatsoever".

The Joint The Food and Agriculture Organization of the United Nations and the World

Health Organization Expert Committee on Food Additives , further added, "the use of

phosphoric acid to compensate for deficiency of fruit acidity, as a flavor component and in other ways, essentially within the "normal" concentration of phosphates naturally occurring in foods, should present no problem".

Where to buy Phosphoric acid

Here at QIDI Chem we have Phosphoric acid for sale. We export worldwide, so you can contact us for a FREE quotation via email address or send a message on WhatsApp for a fast response at +86-139-1500-4413.If you don't want to address email, click the QI DI chemfor more information about the product.

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