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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09 Apr 2014
TL;DR: In this paper, a novel environmental protection composite dye is described, in which the dye is prepared from the following raw materials, by weight, 100-110 parts of organic dye raw materials: 5-6 parts of xylitol, 2-3 parts of sorbitol, 4-5 parts of octadecanol, 2 -3 parts oleic acid, 1-2 parts of sodium ascorbate, 1 -2 part of tea polyphenol, 1 2 parts of phenolic resin, 3-4 parts of Sodium lauryl sulfate
Abstract: The invention discloses a novel environmental protection composite dye. The composite dye is characterized in that the dye is prepared from the following raw materials, by weight, 100-110 parts of organic dye raw materials, 5-6 parts of xylitol, 2-3 parts of sorbitol, 4-5 parts of octadecanol, 2-3 parts of oleic acid, 1-2 parts of sodium ascorbate, 1-2 parts of tea polyphenol, 1-2 parts of phenolic resin, 3-4 parts of sodium lauryl sulfate, 1-2 parts of sodium persulfate, 4-5 parts of retinoic acid, 1-2 parts of sodium thiosulfate, 2-3 parts of sodium sulfite, 4-5 parts of auxiliary agents and 150 parts of water. The composite dye has excellent high temperature stability, has good dyeing effects on pure cotton, blended fabrics and polyester-cotton fabrics, and can raise the quality of fabrics greatly. The composite dye has good dissolvability, good level-dyeing properties, and little salt dosage, and is a new and environmentally-friendly product.
10 citations
TL;DR: In this paper, two semiconductors (Cu2O and TiO2) were chosen for the photocatalytic reduction of bicarbonate to formate in order to perform a systematic study on the effect of six different hole (h+) scavengers.
Abstract: Two semiconductors (Cu2O and TiO2) were chosen for the photocatalytic reduction of bicarbonate to formate in order to perform a systematic study on the effect of six different hole (h+) scavengers. The six h+ scavengers selected forthe study include glycerol, ethylene glycol, 2-propanol, sodium sulfite, triethanolamine, and ethylenediaminetetraacetic acid. Glycerol proved to be the most efficient h+ scavenger, and TiO2 in glycerol showed the highest quantum efficiency of 5.04 ± 0.3%. This finding bodes well as a sustainable one because glycerol is environmentally benign, a low-cost material, and is derived from plants, as opposed to petroleum sources like 2-propanol or ethylene glycol.
10 citations
TL;DR: In this paper, the authors found that sodium sulfite triggered pyroptosis, which depended on reactive oxygen species (ROS)/NOD-like receptor protein 3 (NLRP3) in RBL-2H3 mast cells.
Abstract: Sodium sulfite, a common food additive, has been proved to cause allergic reaction. Pyroptosis is an inflammatory form of programmed cell death with plasma membrane lysis. In this study, we found that sodium sulfite triggered pyroptosis, which depended on reactive oxygen species (ROS)/NOD-like receptor protein 3 (NLRP3) in RBL-2H3 mast cells. Sodium sulfite increased the generation of ROS and the expression of NLRP3, caspase-1, gasdermin D N-terminal (GSDMD-N), interleukin-1β (IL-1β), and interleukin-18 (IL-18). The ROS scavenger N-acetyl-L-carnosine (NAC) and the NLRP3 inhibitor MCC950 reversed these effects. Furthermore, using a lactate dehydrogenase kit, propidium iodide staining, scanning electron microscopy, colocalization of GSDMD-N with histamine, and neutral red staining, we found that sodium sulfite notably induced cell membrane rupture. Because β-Hexosaminidase and histamine play a key role in allergic reactions, we detected the release of β-Hexosaminidase and histamine. The data showed that the release of β-Hexosaminidase and histamine induced by sodium sulfite was increased with dose independence, which were inhibited after treatment with NAC or MCC950. Overall, evidence suggested that pyroptosis induced by sodium sulfite may rupture the cell membrane and result in degranulation of mast cells. Our study may provide new insights for the mechanism by which sodium sulfite induces mast cell death and sensitization.
10 citations
TL;DR: In this paper, a modified version of the TBA test was proposed, based on the fact that when sodium sulfite is added to the reaction mixture, no yellow color is produced and a development of red color increases.
Abstract: A modified TBA test as a method of monitoring lipid oxidation was proposed. This modification bases on the fact that when sodium sulfite is added to TBA reaction mixture, no yellow color is produced and a development of red color increases.
10 citations
TL;DR: In this article, the authors investigated the second-order reaction in oxygen and half-order in cobalt catalyst and showed that the rate-limiting step in the reaction sequence is a diffusion-controlled catalyst regeneratio.
10 citations