Absolute ethanol

Manufactured by Beijing Chemical Works

Sourced in China

Absolute ethanol is a highly purified form of ethanol, with a purity level of 99.5% or higher. It is a clear, colorless liquid that is commonly used as a laboratory reagent and solvent. Absolute ethanol is characterized by its high purity and low water content, making it suitable for various applications in scientific research and analysis.

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Lab products found in correlation

Formaldehyde, by Xilong (3 mentions) Melamine, by Tianjin Guangfu (3 mentions) Sodium dodecyl sulfate (sds), by Xilong (3 mentions) Sodium chloride (nacl), by Beijing Chemical Works (2 mentions) Oxalic acid h2c2o4, by Beijing Chemical Works (2 mentions) Methanol, by Beijing Chemical Works (2 mentions) Sodium hydroxide (naoh), by Beijing Chemical Works (2 mentions) Aqueous ammonia, by Beijing Chemical Works (2 mentions) Hydrochloric acid (hcl), by Beijing Chemical Works (2 mentions) Polyvinylpyrrolidone, by Merck Group (2 mentions) Isopropanol, by Beijing Chemical Works (1 mentions) L rhamnose, by Merck Group (1 mentions) D xylose, by Merck Group (1 mentions) D mannose, by Merck Group (1 mentions) D galactose, by Merck Group (1 mentions) L arabinose, by Merck Group (1 mentions) D glucose, by Merck Group (1 mentions) Tetrabutyl titanate, by Sinopharm (1 mentions) Na2co3, by Beijing Chemical Works (1 mentions) Acetic acid, by Beijing Chemical Works (1 mentions)

Close spelling variants of this product

Ethanol (87 citations)

17 protocols using absolute ethanol

Synthesis of Poly(Lactic Acid) Nanocomposites

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PLA (optical purity >99%, M_n = 47 kg/mol, DPI = 2.61) was supplied
by Zhejiang
Haizheng Biomaterials Co., Ltd. Silver nitrate (AgNO₃)
was obtained from Beijing TongGuang Fine Chemicals Company. The acrylic
acid (AAc) monomer was obtained from Tianjin Fuchen Reagent Factory.
Absolute ethanol was purchased from Beijing Chemical Factory. All
reagents and solvents were analytical-grade chemicals and were used
directly without further purification.

Qi Y., Ma H.L., Du Z.H., Yang B., Wu J., Wang R, & Zhang X.Q. (2019). Hydrophilic and Antibacterial Modification of Poly(lactic acid) Films by γ-ray Irradiation. ACS Omega, 4(25), 21439-21445.

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Characterization of Ginkgo Seeds

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G. sinensis and G. microphylla seeds were supplied by Shexian Forestry Bureau in Hebei, China. The samples were collected in December 2012. They were manually separated and kept in a cool and dry place for further use. Moisture content of the whole seed was dried at (105 ± 2 °C) for constant weight (10.0% (w/w)). The standard monosaccharides (l-rhamnose, l-arabinose, d-glucose, d-galactose, d-mannose, and d-xylose) were purchased from Sigma-Aldrich (Saint Quentin Fallavier, France). Dextran standards (DXT3k, DXT25k, DXT160k, DXT760k, and DXT1185k) with an average molecular weight range of 3.7 × 10³~1.2 × 10⁶ Da were purchased from TosoHaas (Tokyo, Japan). Absolute ethanol and isopropanol were purchased from Beijing Chemical Works (Beijing, China). Calcium carbonate and concentrated sulfuric acid were all purchased from China National Pharmaceutical Group Corporation (Shanghai, China). Syringe filters were supplied by Tianjin branch billion Lung Experiment Equipment Co. Ltd., (Tianjin, China).

Liu Y., Xu Z., Zhang W., Duan J., Jiang J, & Sun D. (2016). Characterization of Fractional Polysaccharides from Gleditsia sinensis and Gleditsia microphylla Gums. Molecules, 21(12), 1745.

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Brass Mesh Substrates for Catalysis

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Brass meshes (copper: 64 wt%, zinc: 36 wt%) (mesh number: 50, 100, 200, 300) were used as the substrates. KOH and K₂S₂O₈ were purchased from Xilong (AR, China), and absolute ethanol and nano SiO₂ particles were purchased from Beijing Chemical works (AR, China). The sizes of the corresponding mesh numbers are shown in Table 1.

Li Z., Liang W., Li W., Wang Z., Zhu L., Chen H, & Liu H. (2021). Facile fabrication of a Janus mesh for water fluid unidirectional transportation. RSC Advances, 11(2), 1001-1011.

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Synthesis of Cadmium Sulfide Nanostructures

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Cadmium chloride (CdCl₂·2.5H₂O, AR) and absolute ethanol were purchased from Beijing Chemical Works (China). Ethylene glycol (EG, HOCH₂CH₂OH, AR) and tetrabutyl titanate (TBT, 98%) were purchased from Sinopharm Chemical Reagent Co. Ltd. Acetic acid (CH₃COOH, AR) was purchased from Tianjin Deen Chemical Reagent Co. Ltd. Silver nitrate (AgNO₃, AR) and thioacetamide (TAA) were purchased from Aladdin. RhB (AR) was purchased from Tianjin Kemiou Chemical Reagent Co., Ltd.

Liang H., Liu S., Zhang H., Wang X, & Wang J. (2018). New insight into the selective photocatalytic oxidation of RhB through a strategy of modulating radical generation. RSC Advances, 8(24), 13625-13634.

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Corrosion Inhibition of Mild Steel

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Analytical grade β-CD, CA, glutaraldehyde, and D₂O were obtained commercially from Innochem Company (Beijing, China). The absolute ethanol, NaCl, and Na₂CO₃ provided by Beijing Chemical Works (Beijing, China) were also of analytical purity. All chemicals were used as received without further purification.
The lab-made deionized water with a resistivity of 18.2 MΩ·cm (25 °C) was used to prepare all solutions in this study. As a special case, 3.5% NaCl (mass ratio) solution, employed as the corrosive medium, was prepared by dissolving solid NaCl in the deionized water. Q235A mild steel coupons with a dimension of 5.0 × 2.5 × 0.2 cm³ (Tianjin Institute of Chemical Research and Design, Tianjin, China) were used as the metal substrates, the composition of which is listed in Table S1.

Ma Y., Fan B., Zhou T., Hao H., Yang B, & Sun H. (2019). Molecular Assembly between Weak Crosslinking Cyclodextrin Polymer and trans-Cinnamaldehyde for Corrosion Inhibition towards Mild Steel in 3.5% NaCl Solution: Experimental and Theoretical Studies. Polymers, 11(4), 635.

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Synthesis of Phosphorus-Nitrogen Compounds

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Monoammonium phosphate (MAP), melamine, and sodium carbonate were provided by Tianjin Guangfu Fine Chemical Research Institute. Formaldehyde (37%) was purchased from Xilong Chemical Co. Ltd., Guangzhou, China. Absolute ethanol and acetic acid (36 wt%) were purchased from Beijing Chemical Works. Raw materials were of analytical grade and were used without further purification.

Han S., Li J., Ding Q., Zang J., Lu Y., Zhang L, & Hu L. (2023). Effects of Processing Conditions on the Properties of Monoammonium Phosphate Microcapsules with Melamine-Formaldehyde Resin Shell. Polymers, 15(14), 2991.

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Polystyrene-based Photocatalytic Nanocomposite

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Polystyrene (PS) was provided by Shanghai Youngling Electromechanical Technology Co., Ltd (the PS with M_w = 150 000 g mol⁻¹). Tetrabutyl titanate (TBOT 97%), N,N-dimethylformamide (DMF), methylene blue (MB), benzoquinone (BQ), and isopropanol (IPA) and triethanolamine (TEA) were purchased from Aladdin Industrial Corporation. Absolute ethanol, oxalic acid (H₂C₂O₄), glucose, sodium molybdate (Na₂MoO₄·2H₂O) and thiourea (CSN₂H₄, 99%) were bought from Beijing chemical works. All chemicals were of analytic grade and without further purification.

Jiang Q., Wang S., Li X., Han Z., Zhao C., Di T., Liu S, & Cheng Z. (2020). Controllable growth of MoS2 nanosheets on TiO2 burst nanotubes and their photocatalytic activity. RSC Advances, 10(67), 40904-40915.

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Whey Protein and Glutathione Antioxidant Assessment

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Whey protein concentrate (WPC) was provided by Fonterra Co-operative Group (Auckland, New Zealand). GSH at purity of 98.7% was obtained from Kyowa Hakko Bio Co., Ltd (Tokyo, Japan). The GSH powder was stored in the dark to avoid oxidation. A reduced glutathione assay kit (A006-2-1), total antioxidative capacity measurement kit (ABTS method) (A015-2-1) were purchased from Nanjing Jiancheng bioengineering institute (Nanjing, China). Pentobarbital sodium, formalin and absolute ethanol were provided by Beijing chemical Works (Beijing, China).

Zhang S., Wang C., Zhong W., Kemp A.H., Guo M, & Killpartrick A. (2021). Polymerized Whey Protein Concentrate-Based Glutathione Delivery System: Physicochemical Characterization, Bioavailability and Sub-Chronic Toxicity Evaluation. Molecules, 26(7), 1824.

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Synthesis of Cerium Oxide Nanocomposites

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Cerium nitrate hexahydrate (Ce(NO₃)₃·6H₂O, ≥99.95%) and commercial ceria (CeO₂, 99.5%) were obtained from Aladdin Industrial Corporation. Tetraethoxysilane (TEOS, AP), hexamethylenetetramine (HMT, ≥99%), N-hexadecane (HD, ≥98%), sodium dodecyl sulfate (SDS, CP), and acrylic acid (AA) were bought from Xilong Chemical Co., Ltd (Guangzhou, China). Sodium bicarbonate (≥99.5%), ammonia (25 wt%), hydrogen peroxide (≥30%), and absolute ethanol were obtained from Beijing Chemical Works. 3-Methacryloxypropyltrimethoxysilane (MPS) and dodecafluoroheptyl methacrylate (DFMA) were purchased from Nanjing Xiangqian Chemical Co., Ltd and Harbin Xeogia Fluorine-Silicon Chemical Co., Ltd, respectively. All the above reagents were used as received.
Methyl methacrylate (MMA) and butyl acrylate (BA) were used as monomers which were purified using a neutral alumina column to eliminate inhibitors before use. Ammonium persulfate (APS) was obtained from Tianjin Bodi Chemical Co., Ltd, and was recrystallized before use. SiO₂ with a mean diameter of 310 nm was synthesized in our lab using the Störber method.^{32 (link)} Deionized water and absolute ethanol were used in all processes.

Xunwen S., Liqun Z., Weiping L., Huicong L, & Hui Y. (2020). The synthesis of monodispersed M-CeO2/SiO2 nanoparticles and formation of UV absorption coatings with them. RSC Advances, 10(8), 4554-4560.

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Surface Functionalization for Biosensing

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3-Aminopropyltrimethoxysilane (APTMS), 2,5-dihydroxybenzoic acid (DHB), Trifluoroacetic acid (TFA), bovine serum albumin (BSA), human serum albumin (HSA), transferring, immunoglobulin G (IgG), Acetonitrile (ACN), and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) hydrochloride were purchased from Sigma (St. Louis, Mo, USA). 11-mercaptoundecanoic acid (MUA) was obtained from Aldrich (Milwaukee, WI, USA). N-Hydroxysuccinimide (NHS) was purchased from Acros (New Jersey, USA). HAuCl₄ was purchased from J&K Scientific Ltd. (Beijing, China). NaOH, NaCl, HCl, HNO₃, absolute ethanol, methanol, ethanolamine (EOA) were of analytical reagent grade from Beijing Chemical Works (Beijing, China). Antibody of human insulin was purchased from the Cell Signaling Technology, Inc. ITO slides (10 Ω/sq) were purchased from Kaivo Electronic Components Co., Ltd. (Zhuhai, China). All reagents and solvents were used as received. Triply distilled water was used for the preparation of all solutions and rinsing.

Liang K., Wu H, & Li Y. (2017). Immune-enrichment of insulin in bio-fluids on gold-nanoparticle decorated target plate and in situ detection by MALDI MS. Clinical Proteomics, 14, 5.

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