Ammonium lignosulfonate is used as a dust suppressant CAS 8061-53-8
Ammonium lignosulfonate
In recent years, with the rapid development of urbanization, infrastructure construction has become more and more important. In the increasingly perfect infrastructure construction, environmental pollution problems frequently appear. Dust pollution from a large number of construction sites and exposed land makes particulate pollutants in the air increase constantly, endangering people's health and seriously affecting People's Daily life. How to take effective measures to prevent urban air particulate pollution economically and effectively has become one of the key research topics. At present, engineering measures, chemical suppression and biological protection are used to control dust in construction sites.
Lignin is regarded as an excellent green chemical raw material because of its unique physical and chemical properties, biocompatibility, low cost and abundant properties. Using lignin as the raw material of dust suppressor can effectively reduce the pollution to the environment. Active groups such as phenolic hydroxyl and alcohol hydroxyl contained in its molecular structure have certain adsorption capacity with charged particles, and can achieve the effect of dust suppression by capturing and agglutinating dust particles. However, the chemical dust suppressor prepared by using lignin alone is often difficult to form a dense layer with high strength and poor water retention performance. Therefore, it is necessary to modify lignin so that it can form surface consolidation layer with sufficient strength and prolong the effective dust suppression period of dust inhibitor, which can not only effectively avoid secondary dust, but also be able to degrade naturally without causing secondary pollution.
Lignosulfonate binds the road dust surface particle,when evaporate it will become the high-viscosity, naturally sticky material traps dust particles,then after sun heat will make a water resistant durable dust control surface.
NO | Index items | Standard value | Test Results |
1 | Appearance | Brown powder | Meets the requirement |
2 | PH Value | 5-7 | 6.50 |
3 | organic matter | 80%min | 85.12 |
4 | Moisture | 5%max | 3.93 |
5 | Water insoluble matter | 2.0% max | 1.76 |
6 | lignosulphonate | 55%min | 58.25 |
7 | Inorganic salts(Na2SO4) | 5.0% max
| 3.78 |
8 | Total reducing matter | 4.0% max
| 3.25 |
Conclusion | Complies with requirements . |
Packaging and storage
1. Powder products are made of chemical fiber woven bags, lined with plastic film bags, each bag net weight (40±0.2kg) or (25±0.2kg) or (750±0.2kg), can also be customized according to customer requirements.
2. Powder products should be stored in dry and ventilated special warehouse, products such as damp caking can be crushed or dissolved into water agent use does not affect the actual effect.
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