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Send Email| Molecular Formula | C7H8O6 |
| Molar Mass | 188.14 |
| Density | 1.23g/mLat 25°C |
| Boling Point | 202°C at 760 mmHg |
| Flash Point | 100°C |
| Vapor Presure | 0.299mmHg at 25°C |
| Storage Condition | Room Temprature |
| Refractive Index | n20/D 1.423 |
| Physical and Chemical Properties | This product is a brown-red liquid. Relative density (20 ℃)1.18~1.23, freezing point -6 ~-80 ℃. |
| Use | For scale inhibition and dispersion in circulating cooling water system |
| Risk Codes | R34 - Causes burns R35 - Causes severe burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S27 - Take off immediately all contaminated clothing. S23 - Do not breathe vapour. |
| UN IDs | UN 3265 8/PG 2 |
| WGK Germany | - |
| Raw Materials | Acrylic acid |
brown-red liquid. Is a low molecular weight polyelectrolyte.
Preparation Method
maleic acid and acrylic acid in a certain proportion of copolymerization.
Use
maleic anhydride-acrylic acid copolymer has strong dispersion effect on carbonate and the like, high thermal stability, and can be used under severe conditions such as high temperature of 300 ℃, it has good compatibility and synergistic effect with other water treatment agents. Widely used in low-pressure boilers, central heating, central air conditioning and various types of circulating cooling water systems. The maleic anhydride-acrylic acid copolymer has excellent scale inhibition performance and high temperature resistance, and has a good inhibitory effect on the formation of scale including phosphate. The maleic anhydride-acrylic acid copolymer can also be used as a chelating dispersant in the textile printing and dyeing industry. With other organic phosphate compound use, the dosage is generally in 2~10mg/L.
Safety
maleic anhydride-acrylic acid copolymer is acidic, should avoid contact with the skin, eyes, etc., after contact with a large amount of water rinse.
Reference Information
| introduction | maleic acid acrylic acid copolymer is a low molecular weight polyelectrolyte, which is prepared by copolymerization of maleic acid and acrylic acid in a certain proportion. this product has a strong dispersion effect on carbonates, high thermal stability, can be used under harsh conditions such as 300 ℃ high temperature, and has good compatibility and synergistic effect with other water treatment agents. It can be used in high-temperature circulating water systems or low-pressure boilers and distillation systems. It is used in combination with other organic phosphonates, and the dosage is generally 2~10mg/L. |
| use | as textile printing and dyeing auxiliaries and builders. It is used for cooling water circulation to effectively inhibit the formation of various scales. Can be used at high temperature of 300 ℃. Can be used in combination with organic phosphorus salt. General dosage 10-6~10-5. |
| production method | maleic anhydride, acrylic acid and deionized water are put into a reaction kettle in a certain proportion, stirred and dissolved to form a uniform solution, then the initiator xylene peroxide is added, and the temperature is gradually increased to 80 ℃, the temperature is kept for 1h, and the unreacted monomer is evaporated under reduced pressure. Filtered finished product. |