Hydrochloric acid (hcl)

Manufactured by Tianjin Kemiou Chemical Reagent

Sourced in China

Hydrochloric acid is a common laboratory reagent used in various chemical applications. It is a clear, colorless, and corrosive liquid with a strong, pungent odor. The primary function of hydrochloric acid is to provide a source of hydrogen ions (H+) in aqueous solutions, which can be used for pH adjustment, titrations, and other analytical procedures.

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Lab products found in correlation

Sodium hydroxide (naoh), by Tianjin Kemiou Chemical Reagent (4 mentions) Sodium chloride (nacl), by Tianjin Zhiyuan (3 mentions) Glycerol, by Tianjin Zhiyuan (3 mentions) Tetraethyl orthosilicate, by Tianjin Damao (3 mentions) Ca no3 2 4h2o, by Tianjin Damao (3 mentions) Zn no3 2 6h2o, by Tianjin Damao (3 mentions) Sodium chloride (nacl), by Tianjin Kemiou Chemical Reagent (2 mentions) Potassium chloride (kcl), by Tianjin Kemiou Chemical Reagent (2 mentions) Glacial acetic acid, by Tianjin Kemiou Chemical Reagent (1 mentions) Hplc grade methanol, by Merck Group (1 mentions) Milli q system, by Merck Group (1 mentions) Acetonitrile, by Merck Group (1 mentions) Hplc grade acetonitrile, by Thermo Fisher Scientific (1 mentions) Hplc grade methanol, by Thermo Fisher Scientific (1 mentions) Cacl2, by Tianjin Kemiou Chemical Reagent (1 mentions) Potassium hydroxide, by Tianjin Kemiou Chemical Reagent (1 mentions) Tms dm 2 m in n hexane, by Merck Group (1 mentions) β mercaptoethanol bme, by Merck Group (1 mentions) Ascorbic acid vc, by Merck Group (1 mentions) Isopropanol, by Tianjin Kemiou Chemical Reagent (1 mentions)

14 protocols using hydrochloric acid (hcl)

Synthesis of Dye Precursor Compounds

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3-Amino-p-anisanilide (Red Base KD, 98%) was provided by Wujiang Meiyan Sanyou Dyestuff Chemical Co., Ltd.
N-(4-Chloro-2,5-dimethoxyphenyl)-3-hydroxynaphthalene-2-carboxamide (Naphthol AS-LC, 98%) was obtained from Jiangsu Tianbo Chemical Co., Ltd. 3-Amino-4-methylbenzamide (DB 60, 99%) was purchased from Shanghai Haohong Biomedical Technology Co., Ltd. Single-layer GO was provided by Tianjin Plam Nanotechnology Co., Ltd. Concentrated (36%) hydrochloric acid, sodium nitrite, glacial acetic acid, sodium hydroxide, and 1-octyl-2-pyrrolidone were supplied by Tianjin Kemiou Chemical Reagent Co., Ltd. All other chemicals were all analytical grade and were used as received without further purification.

Lv D., Zhang Z., Zhang J., Zhang X., Liu L., Gong Y., Zhao J, & Li Y. (2022). Modification of C.I. Pigment Red 146 with surfactants and graphene oxide. RSC Advances, 12(34), 21859-21865.

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Phellodendron Bark Identification and Analysis

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The 20 batches of PCC samples were collected from six different provinces (Sichuan, Shanxi, Hunan, Hubei, Yunnan and Guizhou) of China, and five batches of PAC samples were purchased from Heilongjiang, Hebei, and Liaoning in China. They were identified as the dried bark of Phellodendron chinense Schneid and the dried bark of Phellodendron amurense Rupr, respectively, by Professor Li Tianxiang of the Tianjin University of Traditional Chinese Medicine. The sample information is shown in Table 1. High performance liquid chromatography (HPLC)-grade methanol and acetonitrile were purchased from Sigma-Aldrich (St. Louis, MO, USA). Hydrochloric acid and HPLC-grade phosphoric acid was obtained from Tianjin Kemiou Chemical Reagent Co., Ltd. (Tianjin, China). Water used as a chromatographic mobile phase was purified with a Milli-Q system (Millipore, Bedford, MA, USA). Berberine hydrochloride (purity > 98%) was purchased from Shanghai Harmony Medical Technology Co., Ltd. (Shanghai, China).

Cao X., Sun L., Li D., You G., Wang M, & Ren X. (2018). Quality Evaluation of Phellodendri Chinensis Cortex by Fingerprint–Chemical Pattern Recognition. Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry, 23(9), 2307.

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Comprehensive Solvent and Reagent Sourcing

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The HPLC-grade acetonitrile and HPLC-grade methanol were bought from Fisher Scientific (Fair Lawm, NJ, USA). Tetrahydrofuran normal hexane and methanol were purchased from Tianjin Concord Co., Ltd. (Tianjin, China). Acetic acid and formic acid (HPLC-grade) were purchased from Shenyang Chemical Reagent Factory (Shenyang, China). Tris (hydroxymethyl) methyl aminomethane, pyrogallic acid, pyrogallol and benzaldehyde (HPLC-grade) were purchased from Bodi Chemical Engineering Co., Ltd. (Tianjin, China). Potassium phosphate monobasic and dipotassium phosphate were purchased from Xilong Chemical Co., Ltd. (Shantou, China). Hydrochloric acid was purchased from Tianjin Kemiou Chemical Reagent Co., Ltd. (Tianjin, China). 1,1-Diphenyl-2-picrylhydrazyl free radical was purchased from TCI Chemical Industry Development Co., Ltd. (Shanghai, China). Ultrapure water was used throughout this study.

Zhang R.Z., Zhao J.T., Wang W.Q., Fan R.H., Rong R., Yu Z.G, & Zhao Y.L. (2021). Metabolomics-based comparative analysis of the effects of host and environment on Viscum coloratum metabolites and antioxidative activities. Journal of Pharmaceutical Analysis, 12(2), 243-252.

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Purification and Characterization of CNTs

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The commercial multi-walled carbon nanotubes (CNT) were pre-treated by hydrochloric acid (6 mol/L) at room temperature for 12 h in order to remove residual metal impurities. CaCl₂, alginate and hydrochloric acid were purchased from Tianjin Kemiou Chemical Reagent Co., Ltd. (Tianjin, China). Pd (NO₃)₂·2H₂O was purchased from Alfa Aesar. All chemical agents were used as received without further purification.

Ma Y., Feng L., Guo Z., Deng J., Pham-Huu C, & Liu Y. (2019). Palladium Supported on Calcium Decorated Carbon Nanotube Hybrids for Chemoselective Hydrogenation of Cinnamaldehyde. Frontiers in Chemistry, 7, 751.

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Ceramic Coating Synthesis and Characterization

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Hydrochloric acid and potassium
hydroxide were purchased from Tianjin Kemiou Chemical Reagent Co.,
Ltd. (China). The PTFE emulsion (60 wt %, TE3893) was provided by
DuPont. Tetraethyl orthosilicate was provided by Tianjin Damao Chemical
Reagent Factory (China). Ammonia and anhydrous ethanol were purchased
from Tianjin Tianli Chemical Reagent Co., Ltd. (China). Modified aluminum
tripolyphosphate (P₂O₅: 48–52 wt %, Al₂O₃: 11–14 wt %, ZnO: 18–22 wt %)
was supplied by Shandong Yousuo Chemical Technology Co., Ltd. (China).
Cetyltrimethoxysilane (CTMS) was supplied by Nanjing Youpu Chemical
Co., Ltd. (China). Sodium chloride, glycerol, and sodium silicate
were purchased from Tianjin Zhiyuan Chemical Reagent Co., Ltd. (China).

Qiao Z., Ren G., Chen X., Gao Y., Tuo Y, & Lu C. (2022). Fabrication of Robust Waterborne Superamphiphobic Coatings with Antifouling, Heat Insulation, and Anticorrosion. ACS Omega, 8(1), 804-818.

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Extraction and Analysis of Elaeagnus ulmoides Rubber

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Leaf and samara samples were collected randomly from 15 E. ulmoides clones (10 years old) with two or three plants per clone in a plantation of Guizhou University, and they were collected in October. EuRPs extracted from leaf or samara of E. ulmoides were stored in -80℃ for analysis of FAs and molecular weight of Eu-rubber. Trimethylolamine (Tris), phenyl-methylsulfonyl fluoride (PMSF), polyvinylpyrrolidone (PVP), β-mercaptoethanol (BME) and ascorbic acid (Vc) were purchased from Sigma-Aldrich LLC.; Potassium fluoride, magnesium sulfate, isopropanol and hydrochloric acid were purchased from Tianjin Kemiou Chemical Reagent Co., Ltd. Thirty-five standards of FAs were selected based on their different chain length, geometric structure (cis and trans) and double bond positions. The individual FAMEs were purchased from Fluka (>99%, Sigma-Aldrich). All solvents and reagents were of an analytical grade, specially for chromatography and purchased from Systerm (Systerm, Malaysia) except n-hexane, which was of a higher purity grade (Systerm, Malaysia, for GC, P99%). The esterifying agent TMS-DM (2 M) in n-hexane was purchased from Sigma (Sigma-Aldrich). Tetrahydrofuran (THF, chromatographically pure) and six mixed standards (PStQuick MP-M, Mw=706000, 96400, 5970, 474, 370 and 266 respectively) were purchased from TOSOH co. (Japan).

Qin L., Yuan T., Yang Z., & Zhao D. (2020). Fatty Acid Composition of Eucommia Rubber Particles, Content and Molecular Weight Distribution of Eu-rubber in Eucommia Ulmoides Leaves and Samaras.

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Antioxidant Profiling of Plant Compounds

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Ethanol, sodium carbonate (Na₂CO₃), Disodium hydrogenorthophosphate, sodium dihydrogen phosphate, 30% hydrogen peroxide, Vit C, catechol, 2-methoxyphenol, β-mercaptoEthanol, polyvinylpyrrolidone (PVPP), glycerol, tris-base, hydrochloric acid, and magnesium chloride (MgCl₂) were obtained from Tianjin Kemiou Chemical Reagent Co., Ltd. (Tianjin, China). Folin–Ciocalteu reagent, potassium persulfate, leupeptin, phenylmethylsulfonyl fluoride, boracic acid, borax, and l-phenylalanine were purchased from Beijing Solarbio Science and Technology CO., Ltd. (Beijing, China). Gallic acid, hydroxybenzoic acid, chlorogenic acid, caffeic acid, sinapic acid, ferulic acid, rutin, cinnamic acid, catechin, and quercetin, were obtained from Shanghai Yuanye Biochemical Co., Ltd. (Shanghai, China). 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-Azinobis-3-ethylbenzthiazoline-6-sulphonate (ABTS) and adenosine triphosphate were obtained from Shanghai Aladdin Biochemical Co., Ltd. (Shanghai, China). Methyl jasmonate and mEthanol were obtained from Sigma Chemical Co. (St. Louis, MO, USA). MEthanol was reagent of HPLC-grade. The other chemical reagents were of reagent grade.

Guan Y., Hu W., Jiang A., Xu Y., Sa R., Feng K., Zhao M., Yu J., Ji Y., Hou M, & Yang X. (2019). Effect of Methyl Jasmonate on Phenolic Accumulation in Wounded Broccoli. Molecules, 24(19), 3537.

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Titanium Aluminum Carbide Composite Synthesis

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Titanium aluminum carbide
(Ti₃AlC₂, 98 %), lithium fluoride
(LiF, 99 %), polyvinyl alcohol (PVA, Mw 89000–98000), and glutaraldehyde
were purchased from Shanghai Macklin Biochemical Co., Ltd. Hydrochloric acid
(HCl, 37 %) was acquired from Tianjin Kemiou Chemical Reagent Co., Ltd. All
chemicals were used without further processing.

Gan Z., Qi R., Chen B., Yuan G, & Liao M. (2024). Ultra-fast fabrication of MXene/PVA composite films through glutaraldehyde induced microgel framework. Heliyon, 10(9), e30714.

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Isolation and Identification of Alismatis Rhizoma Compounds

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Thirty-five batches of Alismatis Rhizoma were collected from Sichuan Province (No. CY1−CY7, CS1−CS11) and Fujian provinces (No. JY1−JY6, JS1−JS11) in China. These batches included air-dried crude drug (Sheng Zexie, No. CS1−CS11, JS1−JS11) and stir-baked Alismatis Rhizoma with salt solution (Yan Zexie, No. CY1−CY7, JY1−JY6).
Twenty-six protostane triterpenes and seven sesquiterpenes were obtained from Alismatis Rhizoma in our laboratory and identified by spectroscopic data with the purity not less than 98%. d-Galactose (Gal), d-glucose anhydrous (Glu), d-lyxose (Lyx) and arabinose (Ara), and trifluoroacetic acid were purchased from Sinopharm Chemical Reagent Co., Ltd. (SCRC, Shanghai, China). Phosphoric acid, hydrochloric acid, ammonium acetate and sodium hydroxide were obtained from Tianjin Kemiou Chemical Reagent Co., Ltd. (Tianjin, China). Acetonitrile (HPLC) and methanol (HPLC) and lipase (from Candida rugosa) were obtained from Sigma—Aldrich Co. LLC. (China). Ethylenediaminetetraacetic acid (EDTA), 1-phenyl-3-methyl-5-pyrazolone (PMP), 3-(N-morpholino)propanesulfonic acid (MOPS) and butyl 4-nitrobenzoate were purchased from J&K Scientific Ltd. (China).

Gao X., Sun C., Yu Z., Cang J., Tian X., Huo X., Feng L., Liu X., Wang C., Zhang B, & Ma X. (2017). Correlation analysis between the chemical contents and bioactivity for the quality control of Alismatis Rhizoma. Acta Pharmaceutica Sinica. B, 8(2), 242-251.

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Tung Oil-Based Polymer Synthesis

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Glycidyl methacrylate (GMA) was provided by J&K Scientifific Ltd., Beijing, China. Ammonium chloride (NH₄Cl), potassium persulfate (KPS), sulfuric acid (H₂SO₄, 98%), hydrochloric acid (HCl, 37%), sodium hydroxide (NaOH), sodium chloride (NaCl), phenol, formaldehyde (37%), and resorcinol, were all provided by Tianjin Kemiou Chemical Reagent Co., Ltd., Tianjin, China. Tung oil (410 mPa s, 25 °C) was obtained from Guangzhou Hanhao Chemical Co. Ltd., Guangzhou, China. Trimethylolpropane tris (3-mercaptopropionate) (TMMP), trimethylolpropane triglycidyl ether (TMTGE), and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD, 98%) were all purchased from Sigma Aldrich Co. Ltd., Shanghai, China. All reagents were used without further purification.

Zheng N., Liu J, & Li W. (2019). TO/TMMP-TMTGE Double-Healing Composite Containing a Transesterification Reversible Matrix and Tung Oil-Loaded Microcapsules for Active Self-Healing. Polymers, 11(7), 1127.

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