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phosphoric acid
XLW
| Other Names: | orthophosphoric acid; Anhydrous phosphoric acid |
| CAS NO: | 7664-38-2 |
| Molecular Weight: | 97.99 |
| EC NO: | 231-633-2 |
| MF: | H3PO4 |
| Port | FANGCHENG |
| Phosphoric Acid Specifications | |
| 1.Melting Point(ºC): | 21ºC |
| 2.Boiling Point(ºC): | 158ºC |
| 3.Density: | 1.685 |
| 4.Water Solubility: | MISCIBLE |
| 5.Odor: | Odorless |
| 7.Purity: | 85% min. |
| 8.Appearance: | Transparent liquid |
| 9.Color: | Clear Colorless |
| 10.Risk Codes: | R34 |
| 11.Safety Description: | S26;S45 |
| 12.Grade Standard: | Food Grade, |
| 13.Brand Name: | DALIAN CHEM |
| Phosphoric Acid Application: | Food industrial |
| Packaging Details: | 35kg ,330kg drum and 1600kg IBC |
| Industry | Phosphoric Acidused in removing dust from the metal surfaces. Used as rust converter by bringing it in direct contact with a rusted iron, or steel tools and other surfaces that are rusted. It is helpful in cleaning the mineral deposits, cement nous smears and hard water stains. |
| Food | Used to acidify the foods and beverages such as colas. |
| Medicine | Phosphoric Acid is an important ingredient in over the counter medications to combat nausea. |
| Dentistry | Phosphoric Acid is mixed with zinc powder and forms zinc phosphate, and it is useful in temporary dental cement. It is also useful in temporary dental cement. In orthodontics, zinc is utilized as an etching solution to clean and roughen the surface of teeth. |
| Fertilizer | Used as reaction fertilizer in the soil around a granule acidification is generated that improves the utilization of phosphorus applied and available in the rhizosphere. Due to its nitrogen content (present as ammonia), it is good for crops that require these nutrients in its initial phase |
Q: What is the purity of this phosphoric acid?
A: The purity of this product is ≥85%. Phosphoric acid with a concentration of 85% can be used directly for rust removal on metal surfaces, or it can be diluted as needed.
Q: On which materials can the phosphoric acid rust remover be used?
A: This product is suitable for rust removal on ferrous metals such as carbon steel and cast iron, and can also be used for acid pickling of stainless steel and certain non-ferrous metals. However, it is not suitable for reactive metals such as magnesium and aluminum, as phosphoric acid reacts violently with these metals and releases hydrogen gas, posing a safety hazard. When used on aluminum, special attention must be paid to controlling the concentration and processing time.
Q: Is phosphoric acid flammable?
A: Phosphoric acid is a non-flammable substance with no flash point or auto-ignition temperature, making it safer than many other industrial acids. However, standard safety procedures must still be followed during use to avoid contact with incompatible substances such as metal powders, strong alkalis, and organic materials.
Q: How should phosphoric acid be stored properly?
A: Please follow these storage guidelines: ① Store in a tightly sealed container in a cool, dry, well-ventilated area, away from heat sources, moisture, incompatible substances, and direct sunlight; ② Phosphoric acid is corrosive to ordinary carbon steel; use rubber-lined containers or specially designed 316 stainless steel containers for storage; ③ Do not reuse original containers after rinsing them with other materials; ④ Prevent freezing; ⑤ Even empty containers may pose a hazard due to residual vapors or liquids; all safety warnings and precautions must be strictly followed.
Q: What is the shelf life of phosphoric acid?
A: Under proper storage conditions (cool, dry, sealed, protected from freezing and direct sunlight), phosphoric acid retains its chemical properties for an extended period. However, the integrity of the container should be checked periodically to ensure there are no leaks or corrosion.
Q: How should spent phosphoric acid solution be disposed of?
A: After repeated use, the effectiveness of phosphoric acid rust removal solutions decreases due to the accumulation of iron ions. It is recommended to replace the treatment solution periodically to maintain rust removal effectiveness and avoid poor results caused by solution supersaturation. Spent solution must be neutralized in accordance with local environmental regulations before disposal; it must not be poured out directly. Empty containers must be thoroughly emptied of their contents before disposal and disposed of in accordance with local regulations.
Q: Can phosphoric acid remove scale and mineral deposits?
A: Yes. Phosphoric acid not only effectively removes rust from metal surfaces but also provides excellent results in removing mineral deposits, cement stains, and hard water scale. It can be used for the cleaning and maintenance of industrial equipment and piping.
