Ortho Phosphoric
CAS Number: 7664-38-2
Physical state: Transparent, colorless, viscous solution
EINECS:231-633-2
Chemical formula:H3PO4
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Phosphoric acid
Ortho phosphoric Description:
1. It has deliquescence. Its acidity is weaker than strong acids such as sulfuric acid, hydrochloric acid, and nitric acid, but stronger than weak acids such as acetic acid and boric acid. After being heated at a high temperature of about 200 ℃, it loses water and forms pyrophosphoric acid. If it exceeds 300 ℃, it becomes metaphosphate. It is corrosive. Heat decomposition produces highly toxic phosphorus oxide smoke. Contact with strong corrosive agents, release a large amount of heat, and cause sputtering.
2. Stability and stability
3. Prohibited substances: strong alkalis, active metal powders, flammable or combustible materials
4. Avoid contact with hot and humid air conditions
5. Aggregation hazards: non aggregation
6. Decomposition product: Phosphorus oxide
|
ITEM |
SPECIFICATION |
|
(H3PO4) H3PO3 CaSO4 Acetic acid NaNO3 P2O5 |
85.0% <120mg/kg <1500ppm <10ppm <5ppm >61.5% |
Ortho phosphoric Use:
Phosphoric Acid is an acidulant that is an inorganic acid produced by burning phosphorus in an excess of air, producing phosphorus pentoxide which is dissolved in water to form orthophosphoric acid of varying concentrations. it is a strong acid which is soluble in water. the acid salts are termed phosphates. it is used as a flavoring acid in cola and root beer beverages to provide desirable acidity and sourness. it is used as a synergistic antioxidant in vegetable shorten- ings. in yeast manufacture, it is used to maintain the acidic ph and provide a source for phosphorus. it also functions as an acidulant in cheese. it is also termed orthophosphoric acid.
Ortho phosphoric Safety Profile:
Human poison by ingestion. Moderately toxic by skin contact. A corrosive irritant to eyes, skin, and mucous membranes, and a systemic irritant by inhalation. A common air contaminant. A strong acid. Mixtures with nitromethane are explosive. Reacts with chlorides + stainless steel to form explosive hydrogen gas. Potentially violent reaction with solum tetrahydroborate. Dangerous; when heated to decomposition it emits toxic fumes of POx.








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