75 Phosphoric Acid
CAS Number: 7664-38-2
Physical state: Transparent, colorless, viscous solution
EINECS:231-633-2
Chemical formula:H3PO4
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Phosphoric acid
75 phosphoric acid Description:
A syrupy or deliquescent crystalline ternary acid H3PO4, obtained by hydration with phosphorus pentoxide or decomposition of phosphate (such as phosphate ore) by leaching with sulfuric acid. It is mainly used in the production of fertilizers and other phosphates, for metal rust prevention, sugar refining, and as a seasoning agent for soft drinks.
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ITEM |
SPECIFICATION |
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(H3PO4) H3PO3 CaSO4 Acetic acid NaNO3 P2O5 |
85.0% ＜120mg/kg ＜1500ppm ＜10ppm ＜5ppm ＞61.5% |
75 phosphoric acid Use:
As a cleanser for metals, phosphoric acid produces a light etch on steel, aluminum, or zinc, which aids paint adhesion. Deoxidine is a phosphoric acid cleanser for metals. Nielite D is phosphoric acid with a rust inhibitor, used as a nonfuming pickling acid for steel. Albrite is available in 75, 80, and 85% concentrations in food and electronic grades, both high-purity specifications. DAB and Phosbrite are called Bright Dip grades, for cleaning applications. Phosphoric anhydride, or phosphorus pentoxide, P2O5, is a white, water-soluble powder used as a dehydrating agent and also as an opalizer for glass. It is also used as a catalyst in asphalt coatings to prevent softening at elevated temperatures and brittleness at low temperatures.
75 phosphoric acid Leakage emergency response:
Evacuate personnel from the contaminated area to a safe area and prohibit unrelated personnel from entering the area. It is recommended that emergency personnel wear gas masks and chemical protective clothing. Do not contact the leakage directly, mix it with sand, dry lime or soda ash, and then collect and transfer it to a safe place or add a small amount of water into a large amount of water, adjust it to neutral, and then put it into the wastewater system. If there is a large amount of leakage, it should be collected and recycled or disposed of harmless before disposal.
Waste disposal method: It is recommended to slowly add the waste to alkaline lime water, stir it, and then flush a large amount of water into the sewer.
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