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  1. Chromic Acid

    The term chromic acid is usually used for a mixture made by adding concentrated sulfuric acid to a dichromate, which may contain a variety of compounds, including solid chromium trioxide. This kind of chromic acid may be used as a cleaning mixture for glass
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  2. Soda Ash Dense

    Sodium carbonate, Na₂CO₃, is the water-soluble sodium salt of carbonic acid. It most commonly occurs as a crystalline decahydrate, which readily effloresces to form a white powder, the monohydrate. Pure sodium carbonate is a white, odorless powder that is hygroscopic
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  3. Sodium Bicarbonate

    Sodium bicarbonate, commonly known as baking soda, is a chemical compound with the formula NaHCO₃. It is a salt composed of a sodium cation and a bicarbonate anion. Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder.
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  4. Sodium Carbonate

    Sodium carbonate Skeletal formula of sodium carbonate Space-filling model of sodium carbonate Sample of sodium carbonate Names IUPAC name Sodium carbonate Other names Soda ash, Washing soda, Soda crystals Identifiers CAS Number 497-19-8 (anhydrous) ☑5968-11-6 (monohydrate) ☒6132-02-1 (decahydrate) ☒3D model (JSmol)Interactive image ChEBI CHEBI:29377 ☑ChEMBL ChEMBL186314 ☑ChemSpider 9916 ☑ECHA InfoCard 100.007.127 EC Number 207-838-8 E number E500 (acidity regulators, ...)PubChem CID 10340 RTECS number VZ4050000 UNII 45P3261C7T ☑InChI[show]SMILES[show]Properties Chemical formula Na2CO3 Molar mass 105.9888 g/mol (anhydrous)286.1416 g/mol (decahydrate)Appearance White solid, hygroscopic Odor Odorless Density 2.54 g/cm3 (25 °C, anhydrous)1.92 g/cm3 (856 °C)2.25 g/cm3 (monohydrate)[1]1.51 g/cm3 (heptahydrate)1.46 g/cm3 (decahydrate)[2]Melting point 851 °C (1,564 °F; 1,124 K)decomposes (anhydrous)100 °C (212 °F; 373 K)decomposes (monohydrate)33.5 °C (92.3 °F; 306.6 K)decomposes (heptahydrate)34 °C (93 °F; 307 K)(decahydrate)[2][6]Solubility in water Anhydrous, g/100 mL:7 (0 °C)16.4 (15 °C)34.07 (27.8 °C)48.69 (34.8 °C)48.1 (41.9 °C)45.62 (60 °C)43.6 (100 °C)[3]Solubility Soluble in aq. alkalis,[3] glycerol Slightly soluble in aq. alcohol Insoluble in CS2, acetone, alkyl acetates, alcohol, benzonitrile, liquid ammonia[4]Solubility in glycerine 98.3 g/100 g (155 °C)[4]Solubility in ethanediol 3.46 g/100 g (20 °C)[5]Solubility in dimethylformamide 0.5 g/kg[5]Basicity (pKb) 3.67 Magnetic susceptibility (χ)−4.1·10−5 cm3/mol[2]Refractive index (nD)1.485 (anhydrous)1.420 (monohydrate)[6]1.405 (decahydrate)Viscosity 3.4 cP (887 °C)[5]Structure Crystal structure Monoclinic (γ-form, β-form, δ-form, anhydrous)[7]Orthorhombic (monohydrate, heptahydrate)[1][8]Space group C2/m, No. 12 (γ-form, anhydrous, 170 K)C2/m, No. 12 (β-form, anhydrous, 628 K)P21/n, No. 14 (δ-form, anhydrous, 110 K)[7]Pca21, No. 29 (monohydrate)[1]Pbca, No. 61 (heptahydrate)[8]Point group 2/m (γ-form, β-form, δ-form, anhydrous)[7]mm2 (monohydrate)[1]2/m 2/m 2/m (heptahydrate)[8]Lattice constant a = 8.920(7) Å, b = 5.245(5) Å, c = 6.050(5) à (γ-form, anhydrous, 295 K)[7]α = 90°, β = 101.35(8)°, γ = 90°Coordination geometry Octahedral (Na+, anhydrous)Thermochemistry Heat capacity (C)112.3 J/mol·K[2]Std molar entropy (So298)135 J/mol·K[2]Std enthalpy of formation (ΔfHo298)−1130.7 kJ/mol[2][5]Gibbs free energy (ΔfG˚)−1044.4 kJ/mol[2]Hazards Main hazards Irritant Safety data sheet MSDS GHS pictograms The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)[9]GHS signal word Warning GHS hazard statements H319[9]GHS precautionary statements P305+351+338[9]NFPA 704[11]NFPA 704 four-colored diamond 010 Lethal dose or concentration (LD, LC):LD50 (median dose)4090 mg/kg (rat, oral) [10]Related compounds Other anions Sodium bicarbonate Other cations Lithium carbonate Potassium carbonate Rubidium carbonate Caesium carbonate Related compounds Sodium sesquicarbonate Sodium percarbonate Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).☒ verify (what is ☑☒ ?)Infobox references Sodium carbonate, Na2CO3, (also known as washing soda, soda ash and soda crystals, and in the monohydrate form as crystal carbonate) is the water-soluble sodium salt of carbonic acid.
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  5. Ferric Chloride Lumps

    iron(III) chloride, also called ferric chloride, is an industrial scale commodity chemical compound, with the formula FeCl₃ and with iron in the +3 oxidation state
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