acid base indicators
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Các chỉ số cơ sở axit Phenol Red CAS 143-74-8 Adipic Acid Raw Materials
Acid-Base Indicators Inorganic Chemicals Phenol Red CAS 143-74-8 Adipic Acid Raw Materials Introduction: Phenol red, also known as phenol red, is a dark red crystalline powder with a molecular weight of 354.38 and a CAS number of 143-74-8. It is soluble in water, alcohol, and aceton, and is almost insoluble in ethe and chloroform. It is dark red when dissolved in alkali hydroxide or carbonate solution and is stable in the air. It can be used as an identification medium in
Methyl Red Sodium Salt CAS 845-10-3 Vết bẩn sinh học và chỉ số acid base
Chemical Reagents Bromocresol Green CAS 76-60-8 Cell Stains Biological Stains Acid-base Indicators Introduction: Bromocresol green is also known as 3,3',5,5'-tetrabromo-m-cresolsulfonylphthalide and γ-Sultone. It is precipitated from acetic acid as fine light yellow crystals. Relative molecular weight 698.05. Melting point 218-219℃. It is very sensitive to alkali and shows a special blue-green color when it encounters alkaline aqueous solution. Bromocresol green can be used
White Powder Thymolphthalein CAS 125-20-2 Acid-Base Indicators
White Powder Thymolphthalein CAS 125-20-2 Acid-Base Indicators Overview Thymolphthalein, scientifically known as 5,3-bis-(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide, is an organic reagent. It appears as a white or slightly yellow crystalline powder with a melting point of 253°C. It is easily soluble in ethe, aceton, sulfuric acid, and alkaline solutions, but insoluble in water. Product Parameters Item Value Product Name Thymolphthalein CAS 125-20-2 MF C28H30O4 MW 430.54
Vật tư phòng thí nghiệm MUỐI NATRI BROMOCRESOL BLUE CAS 62625-32-5 Chất chỉ thị axit-baz Thuốc nhuộm và phẩm màu
Laboratory Supplies BROMOCRESOL BLUE SODIUM SALT CAS 62625-32-5 Acid-Base Indicators Colouring Agents And Dyes Introduction: It appears as a dark green to brown crystalline powder, with a density of 0.981 g/mL at 25 °C and a melting point of 230 °C (dec.) (lit.). The sodium salt form is soluble in water. As an anionic dye, it is commonly used as a pH indicator, with a colour-change range of pH 3.8–5.4; it deprotonates to form a yellow compound under acidic conditions and
Orange Powder Xylenol Orange Sodium Salt CAS 63721-83-5 Acid-Base Indicators
Orange Powder Xylenol Orange Sodium Salt CAS 63721-83-5 Acid-Base Indicators Overview Xylenol orange is a triphenylmethane colorimetric agent with a molecular formula of C₃₁H₃₂N₂O₁₃S and a molecular weight of 672.66. It is a lustrous, reddish-brown crystalline powder. It is highly deliquescent. Its sodium salt is readily soluble in water but insoluble in alcohol and ethe. Due to its o-cresolphthalein structure, the pH of the solution significantly affects its color developmen
Bột Methyl Orange C14H14N3NaO3S Chất chỉ thị axit-bazơ CAS 547-58-0
Chemical Reagents Methyl Orange CAS 547-58-0 Orange Powder Acid-base Indicators Introduction: Orange-yellow powder or crystalline flakes. One part of the product can be dissolved in 500 parts of water. It is easily soluble in hot water and almost insoluble in alcohol. Uses: Used as an acid-base indicator, pH 3.1 (red) - 4.4 (yellow), also used for biological staining. Product Name Methyl Orange CAS 547-58-0 MF C14H14N3NaO3S MW 327.33 EINECS 208-925-3 Color Orange powder
Bột tinh thể trắng 1,10-Phenanthroline hydrate CAS 5144-89-8 Chất chỉ thị axit-bazơ
White Crystal Powder 1,10-Phenanthroline hydrate CAS 5144-89-8 Acid-base Indicator Overview White crystalline powder or solid with slight odor. 1,10-Phenanthroline hydrate is incompatible with strong oxidizers and strong acids. It forms complex compounds with ferrous ions. Product Parameters Item Value Product Name Polyoxyethylene Isotridecyl Ethe CAS 5144-89-8 MF C12H8N2.H2O MW 198.22 EINECS 627-114-9 Appearance White crystal powder Product Image Applications Used to study
Bột màu xanh đậm Đỏ trung tính CAS 553-24-2 Chất chỉ thị axit-bazơ Tác nhân nhuộm sinh học.
White Crystalline Powder 99% Potassium Hydrogen Phthalate CAS 877-24-7 Analytical Reagents PH Measurement Buffer Overview Neutral Red dark green powder. Product Parameters Item Value Product Name Neutral Red CAS 553-24-2 MF C15H17ClN4 MW 288.78 EINECS 209-035-8 Appearance Dark Green Powder Product Image Application Acid-base indicator, biological staining agent. pH 6.8 (red) - 8.0 (yellow). Alkalinity indicator for water, nitrite, and urine. Chemicalbook indicator for lipid
C27H34N2O4S Màu xanh rực rỡ CAS 633-03-4 Các chỉ số cơ sở axit
Chemical Reagents Brilliant Green CAS 633-03-4 Acid-base indicators Biological Stains Dyes Introduction: Green sandy substance with golden luster. Soluble in cold and hot water, the aqueous solution is green. Uses: 1. Used for dyeing cotton, silk, acrylic and linen. Also used for dyeing paper and making lakes. It can be used as an external disinfectant in medicine. 2. Mainly used for dyeing cotton, silk, acrylic and linen, and can also be used for dyeing paper and making
