• According to the study, the fracking industry reported using at least 250 million pounds of ethylene glycol, 10 million pounds of naphthalene, 1.8 million pounds of formaldehyde, 4.6 million pounds of acrylamide, 7.5 million pounds of benzene and 590 pounds of arsenic from 2014 to 2021, in addition to more than a dozen other chemicals regulated under the Safe Drinking Water Act. (ehn.org)
  • Some memory foam mattresses contain toxic chemicals such as formaldehyde, benzene, and naphthalene. (newsbasis.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)
  • 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)
  • 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)
  • There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent. (iberocruceros.com)
  • 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)
  • 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)
  • Sodium Naphthalene Sulfonate Formaldehyde (SNF) digunakan sebagai bahan baku akselerator majemuk, agen anti beku, dan retarder, di berbagai industri konstruksi. (grahachemical.co.id)
  • Preparation process of osmotic agent Bx Penetrant Bx, vulgar name open powder Bx, chemical name: sodium butyl naphthalene sulfonate. (zjzgchem.com)
  • sodium naphthalene acetate 98% NAA1. (keaichemical.com)
  • professional manufacturer of sodium naphthalene acetate 98% NAA2. (keaichemical.com)
  • sodium naphthalene acetate 98% NAA is a broad-spectrum based plant growth regulator, can promote cell division and expansion. (keaichemical.com)
  • Activity-based emissions are shown to pose potential acute health hazards for PM 2.5 , formaldehyde, CO, chloroform, and NO 2 . (lbl.gov)
  • It is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant. (footprintbooks.com)
  • 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)
  • These were individually preconditioned for 19 4 days and tested for emissions of formaldehyde and the other target compounds using small-scale chambers. (aivc.org)
  • It is a green environmental protection product with a pollution-free production process and without formaldehyde. (kxcad.net)
  • Formaldehyde - Frequently used in the embalming process. (levylaw.com)
  • Chemical name Naphthalene sulfonate formaldehyde condensate, which has strong cement particle dispersibility. (wxchemicals.com)
  • Most of them are anionic surfactants, such as lignin sulfonate, naphthalene sulfonate formaldehyde polymer, etc. (it-chuiko.com)
  • There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent. (footprintbooks.com)
  • Naphthalene Sulfonate Water Reducing Agent is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant. (footprintbooks.com)
  • naphthalene sulfonate formalde. (loto371.com)
  • Dispersant NNO dia anionic surfactant, ny anarana simika dia naphthalene sulfonate formaldehyde condensation, mavo volontsôkôlà vovoka, mety levona anaty rano, manohitra asidra sy alkali, rano mafy sy inorganic sira, miaraka amin'ny dispersant tsara sy ny fiarovana ny colloidal fananana, tsy misy permeability sy ny foam, manana fifandraisana amin'ny proteinina sy ny fibre polyamide, tsy misy ifandraisany amin'ny fibra toy ny landihazo sy rongony. (jufuchemtech.com)
  • The bacterial consortium was acclimated during seven days before testing its capacity of Sulfonated Naphthalene-Formaldehyde Condensate (SNFC) recalcitrant compound degradation. (scialert.net)
  • 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)
  • In this study, we evaluated the degradation of sulfonated naphthalene-formaldehyde condensate through a selective acclimated heterotrophic bacterial biomass by physicochemical parameters and we identified the microbial community that was able to reduce SNFC. (scialert.net)
  • Yield stresses in cement paste with superplasticizer comprising polycarboxylic polymers, modified by naphthalene formaldehyde resin, and NSS, increase gradually by raising NSS content up to 2.0 % by weight of the cement. (ktu.lt)
  • Negative dilatancy factor in slurries with superplasticizer comprising polycarboxylic polymers, modified by naphthalene formaldehyde resin, and 0.5 % NSS indicates pseudoplastic state of the paste, which shifts into the state of similar dilatant slurry without NSS. (ktu.lt)
  • 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)
  • and sulphonated naphthalene formaldehyde for concrete agro rubber and gypsum board manufacturing. (xstocks.in)
  • SPP is a sodium salt of poly naphthalene sulphonic acid. (spreamisr.com)
  • Bisley supplies naphthalene sulfonates as both a calcium and sodium salt, with a variety of sulfate grades available. (bisley.biz)
  • 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)
  • 16. Formaldehyde and glutaraldehyde and nasal cytotoxicity: case study within the context of the 2006 IPCS Human Framework for the Analysis of a cancer mode of action for humans. (nih.gov)
  • The naphthalene-based superplasticizer is a non-air-entraining high-efficiency Water Reducing Agent synthesized by the chemical industry. (wxchemicals.com)
  • Naphthalene toxicity is the result of the biotransformation process, which consists in cellular chemical reactions with the aim of making the compounds more soluble in water, facilitating their excretion. (scielo.br)
  • The majority of plug-in air fresheners brands contain a chemical known as naphthalene which has been found to cause tissue damage and even lung cancer in laboratory rats and is suspected to have a similar effect in humans. (naturallivingideas.com)
  • Of the 16 PAHs monitored, only naphthalene was present in quantifiable amounts. (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)
  • Hypoxia accentuated the hepatic lesions caused by naphthalene, as well as it also impaired the transcription of tp53 in naphtalene injected fish, demonstrating the risks of contaminating aquatic environments, especially environments where hypoxic conditions are common and occur on a daily or on seasonal basis, as in the Amazon basin. (scielo.br)
  • 11. Human respiratory tract cancer risks of inhaled formaldehyde: dose-response predictions derived from biologically-motivated computational modeling of a combined rodent and human dataset. (nih.gov)
  • With excellent dispersing and wetting properties, naphthalene sulfonates have been a workhorse of the building industry. (bisley.biz)
  • Metabolic activation of the simplest member of this group, dimethylnitrosamine (DMN), is presumed to involve a-hydroxylation of one methyl group, followed by loss of formaldehyde, to yield a monomethylnitrosamine. (nih.gov)
  • Examination of the Sheep and Lamb Bars disclosed that the article consisted essentially of naphthalene and small proportions of phenothiazine, Epsom salt, copper sulfate, and sodium bicarbonate. (nih.gov)
  • professional manufacturer of sodium naphthalene acetate 98% NAA2. (keaichemical.com)
  • Trace levels of PNAs ranged from 0.001 to 0.055 milligrams per cubic meter (mg/m3) benzene soluble fraction, with naphthalene comprising the majority of the sample. (cdc.gov)
  • Shi H, Sui Y, Wang X, Luo Y and Ji L (2005) Hydroxyl radical production and oxidative damage induced by cadmium and naphthalene in liver of Carassius auratus. (scielo.br)