Topic
Sodium sulfite
About: Sodium sulfite is a research topic. Over the lifetime, 2548 publications have been published within this topic receiving 18523 citations. The topic is also known as: Na2SO3 & Anhydrous sodium sulfite.
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Patent•
19 Jul 2006
TL;DR: In this article, a cement reinforcing agent, which mainly comprises triethanolamine 2-4%, glycerol 3-5, diethylene glycol 8-15, sugar 15-20, anhydrous sodium sulfite 2 -4% and water, was described.
Abstract: The invention discloses a cement reinforcing agent, which mainly comprises triethanolamine 2-4%, glycerol 3-5%, diethylene glycol 8-15%, sugar 15-20%, anhydrous sodium sulfite 2-4% and water.
12 citations
TL;DR: In this paper, the extraction of vanadium-3-methylcatechol-lauryltrimethylammonium (LTMA) from aqueous solution at pH 7.0 has been studied.
12 citations
Patent•
14 Sep 1972
TL;DR: In this paper, the sulfite is added to the flotation pulp of a fine particle size coal fraction by adding sulfite sulfite to the pulp to make it more sulfite-resistant.
Abstract: Pyritic sulfur flotation is depressed in aqueous flotation of a fine particle size coal fraction by adding sulfite to the flotation pulp.
12 citations
Patent•
09 Oct 2013
TL;DR: The chemiluminiscence substrate liquid disclosed by the invention is high in sensitivity, short in platform time, long in stable period of a platform and high in stability as mentioned in this paper.
Abstract: The invention discloses a chemiluminiscence substrate liquid capable of being applied to the field of immune detection. The chemiluminiscence substrate liquid contains 9-(4-chlorphenyl sulfobenzoyloyl methylene)-10-methyl-9, 10-dihydroacridine-disodium salt, N, N-dimethyl acridine nitrate, trihydroxymethyl amino methane, sodium sulfite, lauryl sodium sulfate and TWEEN-20. The chemiluminiscence substrate liquid disclosed by the invention is high in sensitivity, short in platform time, long in stable period of a platform and high in stability.
12 citations
TL;DR: In this article , the degradability of OBS under the conditions of UV/persulfate (UV/PS) and UV/sulfite(UV/SF) as typical redox processes was investigated.
Abstract: Sodium p-perfluorous nonenoxybenzenesulfonate (OBS) is a novel fluorosurfactant used as the alternative to perfluorooctanesulfonic acid (PFOS) in several applications such as fire-fighting foams and chemical enhanced oil recovery ("EOR") in China, with the annual production capacity of about 3,500 t. Here, for the first time, we investigated the degradability of OBS under the conditions of UV/persulfate (UV/PS) and UV/sulfite (UV/SF) as typical redox processes. A higher reaction rate (1.05 min-1) and total organic carbon (TOC) reduction (46.9%) but a low defluorination rate (27.6%) along with the formation of a series of fluorinated intermediates were found in UV/PS, while a high defluorination rate (87.7%) was realized in UV/SF. In particular, a nontargeted workflow using high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC/Q-TOF-MS) was established to detect fluorinated intermediates. Combined with the theoretical calculation, the distinctive degradation pathways in both oxidation and reduction processes were proposed. The degradation mechanism of OBS in UV/SF was proposed to be H/F exchange and subsequent HF elimination. Furthermore, the diluted OBS-based fluoroprotein (FP) foam was used to investigate the degradation of OBS, which confirms the treatability using the redox approach. This work provides insights into the degradability of OBS, fluorinated intermediate search, and proper treatment of related contamination.
12 citations