• Shandong Jufu Chemical Technology Co., Ltd. inyanzvi yekambani yakatsaurirwa kugadzira & kutumira kunze zvigadzirwa zvemakemikari ekuvaka.Jufu yanga yakatarisana nekutsvaga, kugadzira, uye kutengesa kweakasiyana ezvigadzirwa zvemakemikari kubvira pakagadzwa.Yakatanga nekongiri admixtures, zvigadzirwa zvedu zvikuru zvinosanganisira: Sodium Lignosulfonate, Calcium Lignosulfonate, Sodium Naphthalene sulfonate formaldehyde, polycarboxylate Superplasticizer uye sodium gluconate, iyo yakashandiswa zvakanyanya sekongiri yekudzikisa mvura, plasticizers uye retarders. (jufuchemtech.com)
  • There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent. (iberocruceros.com)
  • They improve machinability, speed up surface treatment, increase strength, save cement and help reduce shrinkage and t There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent. (actionext.com)
  • Dispersant MF, methylnaphthalene sulfonate formaldehyde condensate Properties: brown powder, soluble in water Composition: methylnaphthalene sulfonate formaldehyde condensate, anion Performance and application: This product is easily soluble in water, resistant to acid, alkali and hard water, and. (zjzgchem.com)
  • Naphthalenesulfonates Naphthalenesulfonates are derivatives of sulfonic acid which contain a naphthalene functional unit. (wikipedia.org)
  • In the non-covalent molecular imprinting approach used to prepare this polymer, 1-naphthalene sulfonic acid (1-NS) and 4-vinylpyridine (4-VP) were used as a template molecule and functional monomer, respectively, and both dissolved in a mixture of methanol/water (4:1) as porogen together with the cross-linker ethylene glycol dimethacrylate. (strath.ac.uk)
  • At this time, naphthalene sulfonic acid was stable, while naphthalene sulfonic acid was easy to hydrolyze, thus reducing the amount of naphthalene sulfonic acid to facilitate the next polycondensation reaction. (footprintbooks.com)
  • 2) sulfonation: The sulfonation process is to add concentrated sulfuric acid to the sulfonation kettle and react with it to produce naphthalene sulfonic acid. (footprintbooks.com)
  • There are two types of naphthalene sulfonic acid: α -naphthalene sulfonic acid and β -naphthalene sulfonic acid. (footprintbooks.com)
  • 3) hydrolysis: As α -naphthalene sulfonic acid is produced in the sulfonation reaction, its presence is not conducive to the condensation reaction, so it needs to add water to hydrolyze α -naphthalene sulfonic acid. (footprintbooks.com)
  • 4) condensation: After the end of hydrolysis reaction to condensation kettle drop formaldehyde, and β -naphthalene sulfonic acid reaction to generate naphthalene sulfonated formaldehyde condensation. (footprintbooks.com)
  • This will often result in the formation of small cracks as the water eventually evaporates over time, red What is Water reducing agent?Water reducers developed over the years can be categorized as lignosulfonates, hydroxycarboxylic acids, hydroxylated polymers, salts of melamine formaldehyde sulfonates, or naphthalene formaldehyde sulfonic acids. (mis-asia.com)
  • Sodium Naphthalene Sulfonate Formaldehyde (SNF) digunakan sebagai bahan baku akselerator majemuk, agen anti beku, dan retarder, di berbagai industri konstruksi. (grahachemical.co.id)
  • It is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant. (footprintbooks.com)
  • They are produced on a large scale by condensation of naphthalenesulfonate or alkylnaphthalenesulfonates with formaldehyde. (wikipedia.org)
  • The condensation reaction is an important reaction in the production of a naphthalene sulfonate water reducer. (footprintbooks.com)
  • In order to find the optimal process parameters, the effects of condensation time, condensation temperature, and the ratio of formaldehyde and naphthalene on product properties were investigated by means of uniform design. (footprintbooks.com)
  • SNF is made from naphthalene, sulfuric acid, formaldehyde and liquid alkali, through sulfonation, hydrolyzation, condensation and neutralization reaction and then drying to powder. (bailincorp.com)
  • Of commercial importance are the alkylnaphthalene sulfonates, which are used as superplasticizers in concrete. (wikipedia.org)
  • The mole ratio of naphthalene to sulfuric acid is 1:1.3-1.4. (footprintbooks.com)
  • It is the product of naphthalene reacting with sulfuric acid and then fusing with formaldehyde. (kxcad.net)
  • Preparation process of osmotic agent Bx Penetrant Bx, vulgar name open powder Bx, chemical name: sodium butyl naphthalene sulfonate. (zjzgchem.com)
  • The new non-covalent molecularly imprinted polymer (MIP) prepared in aqueous environment was used as a sorbent in solid-phase extraction (SPE) to selectively extract a group of naphthalene mono- and disulfonates. (strath.ac.uk)
  • The uniqueness of this mode of ligand recognition is corroborated by the crystal structure of TTR in complex with the weak analogue 1,5-AmNS, the binding of which is driven mainly by hydrophobic partition and one electrostatic interaction between the sulfonate group and the Lys15. (rcsb.org)
  • Since 1960, recovery of naphthalene from petroleum by dealkylation of methyl naphthalenes in the presence of hydrogen at high temperature and pressure has become a commercial production process. (cdc.gov)
  • The raw material for production is naphthalene. (footprintbooks.com)
  • The production volume of naphthalene in the United States decreased significantly from a peak of 900 million pounds (409,000 metric tons) in 1968 to 222 million pounds (101,000 metric tons) in 1994. (cdc.gov)
  • A new polymeric sorbent synthesised by exploiting molecular imprinting technology has been used to selectively extract naphthalene sulfonates (NSs) directly from aqueous samples. (strath.ac.uk)
  • Seven PNA's (naphthalene, fluorene, phenanthrene, pyrene, chrysene, benzo[b]fluoranthrene, benzo[a]pyrene) were detected at trace concentrations (1 to 34 ppm) in bulk samples of the WCO. (cdc.gov)
  • Bisley supplies naphthalene sulfonates as both a calcium and sodium salt, with a variety of sulfate grades available. (bisley.biz)
  • Contact us if you need more details on Sodium Naphthalene Sulphonate Formaldehyde. (wxchemicals.com)
  • Sodium Sulfonate, a solubilizer, has low foaming, can remove protein stains and is wetting. (footprintbooks.com)
  • Superplasticizers are made from either sodium salts or calcium salts and are classified in one of four ways: sulfonated melamine-formaldehyde condensates, sulfonated naphthalene-formaldehyde condensates, modified lignosulfonates, and others such as sulfonic-acid esters and carbohydrate esters. (howstuffworks.com)
  • However, the incorporation of air makes it possible to reduce the What is Water reducing agent?Water reducers developed over the years can be categorized as lignosulfonates, hydroxycarboxylic acids, hydroxylated polymers, salts of melamine formaldehyde sulfonates, or naphthalene formaldehyde sulfonic acids. (mis-asia.com)
  • What is Water reducing agent?Water reducers developed over the years can be categorized as lignosulfonates, hydroxycarboxylic acids, hydroxylated polymers, salts of melamine formaldehyde sulfonates, or naphthalene formaldehyde sulfonic acids. (mis-asia.com)
  • Naphthalene sulfonated acid compounds and their formaldehyde condensates (SNFC) were widely used in industrial processes, as tanning agents, mainly in the synthesis of azoic colorants in textile industry (Rivera-Utrilla et al . (scialert.net)
  • There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent. (footprintbooks.com)
  • They improve machinability, speed up surface treatment, increase strength, save cement and help reduce shrinkage and t There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent. (actionext.com)
  • Naphthalene may be produced from either coal tar or petroleum. (cdc.gov)
  • Since 1960, recovery of naphthalene from petroleum by dealkylation of methyl naphthalenes in the presence of hydrogen at high temperature and pressure has become a commercial production process. (cdc.gov)
  • Naphthalene produced from petroleum is about 99% pure. (cdc.gov)
  • Concentrated sulphuric acid was added to molten naphthalene, followed by condensation with formaldehyde, neutralization with caustic soda and dilution with water to obtain the final dispersant agent SNFC (Ladhari et al . (scialert.net)
  • 2002). Aromatic sulfonates were well-studied because of their widespread impact on the environment and their potential health hazard on humans and wildlife. (scialert.net)
  • The naphthalene-based superplasticizer is a non-air-entraining high-efficiency Water Reducing Agent synthesized by the chemical industry. (wxchemicals.com)
  • Chemical name Naphthalene sulfonate formaldehyde condensate, which has strong cement particle dispersibility. (wxchemicals.com)
  • A diazo-naphthalene sulfonate that is widely used as a stain. (nih.gov)
  • Table 5-1 lists information on United States companies that reported the manufacture and use of naphthalene in 2002 (TRI02 2004). (cdc.gov)
  • Naphthalene-based high-efficiency water reducer can be divided into high-concentration products (Na2SO4 content 10%) according to the content of Na2SO4 in its products. (wxchemicals.com)
  • With excellent dispersing and wetting properties, naphthalene sulfonates have been a workhorse of the building industry. (bisley.biz)
  • 2005). Sulfonated Naphthalene Formaldehyde Condensate (SNFC) represents a class of materials able to maintain solid particles in a suspension state inhibiting and preventing their aggregation. (scialert.net)