What is sodium naphthalene Sulfonate?
Naphthalenesulfonates are derivatives of sulfonic acid which contain a naphthalene functional unit. They are produced on a large scale by condensation of naphthalenesulfonate or alkylnaphthalenesulfonates with formaldehyde.
What is SNF powder?
Get Latest Price. Minimum Order Quantity. 100 Kg. Sulfonated naphthalene formaldehyde powder is a high range water reducer with no air entering component, suitable to make high flowing concrete, precast and reinforced concrete.
How do you make sodium naphthalene?
Preparation and properties The alkali metal naphthalene salts are prepared by stirring the metal with naphthalene in an ethereal solvent, usually as tetrahydrofuran or dimethoxyethane. The resulting salt is dark green. The anion is a radical, giving a strong EPR signal near g = 2.0.
What is sodium naphthalene formaldehyde?
SNF is a light yellow to yellowish brown powder, which is an anionic surfactant. It is widely used for the preparation of free-flowing and pumpable concrete mixture in the construction industry.
What is poly naphthalene?
Poly naphthalene sulfonate is a chloride-free ad mixture that instantly dissolves in water. The compound is widely used in the construction industry, and there is greater market demand year-round.
What is SNF used for?
SNF hydro soluble polymers are used extensively as performance enhancing additives to either boost the performance of bentonite, or for preparation of polymer slurries for bored piles, diaphragm walls, anchors ties, bentonite-cement plastic walls.
What is SNF based admixture?
Super plasticizers are chemical admixtures used where well-dispersed particle suspension is required. Among these admixtures, super plasticizer poly carboxylic ether (PCE) and naphthalene formaldehyde sulphonate (SNF) has great market relevance.
Which method is used for preparation of naphthalene?
The method for the preparation of naphthalene dicarboxylic acid of the invention is conducted by the liquid-state oxidation reaction of dimethylnaphthalene with oxygen in air in the presence of acetic acid solvent using metal catalysts of cobalt and manganese, and using bromine as a reaction initiator, and it is …
Does naphthalene dissolve in water?
Explanation. Naphthalene is a nonpolar compound. Thus, it is insoluble in highly polar solvents like water. Non-polar solutes do not dissolve in polar solvents like water because they cannot compete with the strong attraction that the polar solvent molecules have for each other.
What is the use of SNF?
SNF FOR CONSTRUCTION CHEMICALS Improves workability of concrete up to M40 grade at same W/C ration. Increases compressive strength of concrete. Excellent product to formulate good final admixtures for concrete.
What are the uses of naphthalene?
Naphthalene is an aromatic hydrocarbon found in coal tar or crude oil. Naphthalene is used in the manufacture of plastics, resins, fuels, and dyes. It is also used as a fumigant insecticide that works by turning directly from a solid into a toxic vapor. This process is called sublimation.