Aluminium Sulphate/Aluminum Sulfate/Alum Flocculant
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1. Chemical and Physical Properties:
Product name: Aluminium Sulphate or Aluminum Sulfate
Shape: Flakes or Granular or Powder.
EINECS NO.:233-135-0
CAS No.: 10043-01-3
HS.Code: 28332200
Molecular Formula: Al2(SO4)3
Appearance:It is white or grey flake,particle or massive crystallization.
Apt to cake after moisture absorption when laid in air for a long time.A little green because of Fe2+ ,yellow when Fe2+ is oxided to Fe3+.Soluble in water easily,and water solution is acid.
2. Specification:
Standard: HG/T 2225-2001 and HG/T 2227-2004
Items | Specifications | |||
I Type:Low Ferrous/Low Iron | II Type:Non-Ferrous/Iron-free | |||
First Class | Qualified | First Class | Qualified | |
Al2O3 % ≥ | 15.8 | 15.6 | 17 | 16 |
Ferrous(Fe )% ≤ | 0.5 | 0.7 | 0.005 | 0.01 |
Water Insolube % ≤ | 0.1 | 0.15 | 0.1 | 0.15 |
PH (1% aqueous solution) ≥ | 3.0 | 3.0 | 3.0 | 3.0 |
Arsenic(As) %≤ | 0.0005 | 0.0005 | ||
Heavy metal (Pb) %≤ | 0.002 | 0.002 |
3.Applications:
Water effluent treatment system
It's used for purification of drinking water and wastewater treatment by settling of impurities by
means of precipitation and flocculation.
Paper Industry
It helps in sizing of paper at neutral and alkaline pH, thus improving paper quality (reducing spots
and holes and improving sheet formation and strength) and sizing efficiency.
Textile Industry
It is used for color fixing in Naphthol based dyes for cotton fabric.
Other Uses
Leather tanning, lubricating compositions, fire retardants; decolorizing agent in petroleum, deodorizer; food additive; firming agent; dyeing mordant; foaming agent in firefighting foams; fireproofing cloth; catalyst; pH control; waterproofing concrete; aluminum compounds, zeolites etc.
4. Package:
Packaging Detail: PP/PE 50kg/bag;25kg/bag;Jumbo bag or according to customers' requirements.
20-25MT will be loaded in per 20'FCL container.
5. Attention and Storage:
The product is liable to absorb moisture and clot due to long-term exposure, so shady, cool and ventilated environment is needed.
- Q:What kind of compounds or elements can be used as catalysts in high school chemistry? What is the catalyst for what?
- Iron, manganese dioxide, mainly metal and its oxides.
- Q:What is the difference between biological enzymes and chemical catalysts?
- Biological enzymes are an environmentally friendly biocatalyst with greater superiority. Such as the reaction speed, processing conditions (such as temperature, PH value, etc.) more moderate, safe and easy to control the operation and can replace the strong alkali and other chemicals. The biological enzymes act only on specific substrates, with little damage to the substrate and the biodegradation of the treated wastewater to reduce water and energy consumption. After more than a century of research by scientists, more than 3,000 known enzymes are generally considered. The application of biological enzymes in the textile industry, initially the application of α-amylase in cotton fabric desizing process, and later developed into the cellulase used in denim washing and bio-polishing process, and now the development of pectinase to the biological scouring Technology, hydrogen peroxide enzyme catalytic decomposition technology, protease in silk and wool fiber applications
- Q:An important property of the catalyst is that the reaction equilibrium is not changed while increasing the forward reaction rate and the reverse reaction rate. However, because the enzyme for the specificity of the substrate, is not almost every reaction by the enzyme are one way to do it.
- A brief description of restriction endonucleases and DNA ligases: Restriction endonucleases, and DNA ligases, can be said to have nothing to do with energy calculations. In particular, the actual effect of these two enzymes is not to switch between A (DNA) and B (disconnected DNA) states. Restriction endonucleases do not need to open base pairing in addition to the phosphates, whereas the DNA ligase itself is responsible for linking 5'-phosphate and 3'-hydroxy. Which use the energy supply substances, coenzyme are not the same, can not be used as the same reaction is positive and negative process considerations.
- Q:The role and significance of chemical catalysts
- The catalyst does not participate in the reaction, but only acts as a catalyst, and finally gets the catalyst composition unchanged. But if the catalyst, your reaction will be very slow or even not happen.
- Q:How are a catalyst and an intermediate similar? How are they different?
- A catalyst speeds up the rate of a reaction by lowering the activation energy barrier which is, presumably, the energy required to achieve the reaction intermediate. Catalysts are also not consumed in the reaction, they are regenerated towards the end. A reaction intermediate is a configuration that a molecule takes prior to achieving it's lowest energy form which would signify the end of the reaction. Intermediate usually are hard to isolate because of the incentive to go to the most stable configuration. How are they different? A catalyst is not a part of the reaction product and it doesn't get consumed. An intermediate in a reaction is transformed into the product. How are they similar? Well, catalysts drive the reaction and make it easier for the reaction for follow through. Since intermediates are high energy and thermodynamics tells us that low energy is favorable, the incentive for a high energy intermediate to drive down to it's stable for can also drive a reaction. I hope that helps. I hope it makes sense.
- Q:What is the chemical nature of the enzyme?
- Enzyme is an amphoteric electrolyte, soluble in water, easy to precipitate at the isoelectric point, the enzyme activity-pH curve and the zwitterion of the enzyme. The enzyme is a high-molecular colloidal material, generally can not pass through the semipermeable membrane; Dissociation curve similar to the enzyme in the electric field can be the same as other proteins swimming; ③ lead to protein denaturation factors, such as ultraviolet, heat, surfactant, heavy metals, protein precipitants, etc., can make the enzyme failure; Protease hydrolysis and loss of activity.In addition, the most direct evidence is that all has been highly purified and crystallized enzyme for a primary structure analysis, the results indicate that the enzyme is a protein.
- Q:What is the difference between electrocatalysis and general chemical catalysis?
- General chemical catalysis is a catalyst, and electrocatalysis also need to be carried out under the conditions of the electric field
- Q:Hydrogen and oxygen in the role of the catalyst can do the chemical formula of aviation fuel?
- Do not be irresponsible, rocket fuel is hydrogen peroxide. H2 + O2 = H2O2 (catalyst)
- Q:What is the principle of the catalyst? Why can change the rate of chemical reactions and their own without any change
- Because the catalyst does not participate in the reaction, it can change the rate of chemical reactions without any change in itself.
- Q:What is the catalyst condition in the chemical equation?
- On the middle of the equal sign or arrow above ah ~
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