Food Blue 1:1 price CAS NO.16521-38-3

Chinese name Food Blue 1:1 Chinese synonym Acid Blue 74 Aluminum Lake [CI73015: ALLAKE]; Food Blue 1:1; Food Blue 1 Aluminum Lake; Pigment Blue 63; Indigo aluminum lake; Edible Blue No.2 Aluminum Lake (Japanese name); Aluminum lake; The English name of Acid Blue 74 Aluminum Lake is FoodBlue 1:1, and its English synonym is Blue2 Lake; Blue1Lake; FoodBlue1:1; Aluminum,2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonicacidcomplex; ACIDBLUE74ALUMINUMLAKE; AO2; FD&CBLUE2LAKE; Acidblue 74 aluminum lake (C.I. 73015: aluminum lake) CAS number 16521-38-3 Molecular formula C16H8N2O8S2.2Na Molecular weight 466.357 EINECS number 240-589-3 Related category food additive; Food coloring agents (colorants); Food coloring and color protectants; Chemical industry; Color Mol file 16521-38-3. molStructural formula Food Blue 1:1 Property density 1.603 [at20 ℃] Vapor pressure 0Paat25 ℃ LogP-3.57EPA Chemical substance information C.I. PigmentBlue63 (16521-38-3) Food Blue 1:1 Usage and synthesis method Identification test Take 0.1g of sample, add 5ml of dilute sulfuric acid test solution (TS-241), mix thoroughly, and dilute with 0.02mol/L ammonium acetate solution to 100ml. If the liquid is opaque, centrifuge for separation. Take 1~10ml of this liquid (the amount should be within the range of 0.2~0.7 according to the measured absorbance), and then dilute it to 100ml with 0.02mol/L ammonium acetate solution. This liquid has a maximum absorption peak at a wavelength of 612nm ± 2nm Take 0.1g of the sample; add 5Chemicalbookml of 10% sodium hydroxide solution, shake and heat in a water bath for about 5 minutes to dissolve it, and it should be a nearly transparent yellow brown color. After cooling and neutralizing with dilute hydrochloric acid test solution, it should be purple blue to light green, and produce gel like precipitation of the same color. Take 0.1g of the sample, add 5ml of sulfuric acid, and heat it in a water bath while stirring for about 5 minutes. It should appear deep purple blue. Cool down and add 2-3 drops of the supernatant to 5ml of water, which should appear purple blue. Take 0.1g of the sample, add 10ml of dilute hydrochloric acid test solution, and heat it in a water bath until most of it is dissolved. Add 0.5g of activated carbon, shake thoroughly, and filter. The colorless filtrate obtained is neutralized with 10% sodium hydroxide solution, and its aluminum salt test (IT-2) is positive. In addition, if ammonium chloride test solution (TS-20) and ammonia test solution (TS-13) are added, white gel like precipitation will be generated. Even if excessive ammonia test solution is added, the precipitation will not be dissolved. The content analysis is carried out according to the content analysis method in "Amaranth Red Aluminum Lake (17005)". Accurately weigh the sample, and the amount should be such that the consumption of 0.1mol/L titanium trichloride solution is about 20ml. Replace 15g of sodium hydrogen tartrate with 15g of sodium citrate. Each milliliter of 0.1mol/L titanium trichloride solution is equivalent to 21.12mg of this product (C16H10N2O8S2). Toxicity: ADl0-5mg/kg (FAO/WHO, 1984). Use limited edition GB2760-96: Same as "17040, indigo". A blue fine powder with a purple chemical property. Odorless. Very insoluble in water and organic solvents (0.001% to 0.01%). Light and heat resistance are stronger than indigo. Usage: Edible blue pigment. Used alone or in combination with powder food, oil products, sugar coated cakes, etc. Due to the solubility of aluminum lake under acidic and alkaline conditions, its use is limited. It is still used for coloring food packaging materials, printing inks, toys, tableware, etc. The production method involves reacting aluminum salts such as aluminum sulfate and aluminum chloride with alkali metal salts such as sodium carbonate to obtain aluminum hydroxide, which is then added to an indigo aqueous solution and precipitated. The production method of aluminum lake is to react pigment substances with aluminum oxide in aqueous solution. Aluminum oxide is an undried substance prepared by reacting aluminum sulfate or aluminum chloride with sodium carbonate, sodium bicarbonate, or ammonia. After the formation of the lake, it is filtered, washed with water, and dried.

Chinese name Food Blue 1:1 Chinese synonym Acid Blue 74 Aluminum Lake [CI73015: ALLAKE]; Food Blue 1:1; Food Blue 1 Aluminum Lake; Pigment Blue 63; Indigo aluminum lake; Edible Blue No.2 Aluminum Lake (Japanese name); Aluminum lake; The English name of Acid Blue 74 Aluminum Lake is FoodBlue 1:1, and its English synonym is Blue2 Lake; Blue1Lake; FoodBlue1:1; Aluminum,2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonicacidcomplex; ACIDBLUE74ALUMINUMLAKE; AO2; FD&CBLUE2LAKE; Acidblue 74 aluminum lake (C.I. 73015: aluminum lake) CAS number 16521-38-3 Molecular formula C16H8N2O8S2.2Na Molecular weight 466.357 EINECS number 240-589-3 Related category food additive; Food coloring agents (colorants); Food coloring and color protectants; Chemical industry; Color Mol file 16521-38-3. molStructural formula Food Blue 1:1 Property density 1.603 [at20 ℃] Vapor pressure 0Paat25 ℃ LogP-3.57EPA Chemical substance information C.I. PigmentBlue63 (16521-38-3) Food Blue 1:1 Usage and synthesis method Identification test Take 0.1g of sample, add 5ml of dilute sulfuric acid test solution (TS-241), mix thoroughly, and dilute with 0.02mol/L ammonium acetate solution to 100ml. If the liquid is opaque, centrifuge for separation. Take 1~10ml of this liquid (the amount should be within the range of 0.2~0.7 according to the measured absorbance), and then dilute it to 100ml with 0.02mol/L ammonium acetate solution. This liquid has a maximum absorption peak at a wavelength of 612nm ± 2nm Take 0.1g of the sample; add 5Chemicalbookml of 10% sodium hydroxide solution, shake and heat in a water bath for about 5 minutes to dissolve it, and it should be a nearly transparent yellow brown color. After cooling and neutralizing with dilute hydrochloric acid test solution, it should be purple blue to light green, and produce gel like precipitation of the same color. Take 0.1g of the sample, add 5ml of sulfuric acid, and heat it in a water bath while stirring for about 5 minutes. It should appear deep purple blue. Cool down and add 2-3 drops of the supernatant to 5ml of water, which should appear purple blue. Take 0.1g of the sample, add 10ml of dilute hydrochloric acid test solution, and heat it in a water bath until most of it is dissolved. Add 0.5g of activated carbon, shake thoroughly, and filter. The colorless filtrate obtained is neutralized with 10% sodium hydroxide solution, and its aluminum salt test (IT-2) is positive. In addition, if ammonium chloride test solution (TS-20) and ammonia test solution (TS-13) are added, white gel like precipitation will be generated. Even if excessive ammonia test solution is added, the precipitation will not be dissolved. The content analysis is carried out according to the content analysis method in "Amaranth Red Aluminum Lake (17005)". Accurately weigh the sample, and the amount should be such that the consumption of 0.1mol/L titanium trichloride solution is about 20ml. Replace 15g of sodium hydrogen tartrate with 15g of sodium citrate. Each milliliter of 0.1mol/L titanium trichloride solution is equivalent to 21.12mg of this product (C16H10N2O8S2). Toxicity: ADl0-5mg/kg (FAO/WHO, 1984). Use limited edition GB2760-96: Same as "17040, indigo". A blue fine powder with a purple chemical property. Odorless. Very insoluble in water and organic solvents (0.001% to 0.01%). Light and heat resistance are stronger than indigo. Usage: Edible blue pigment. Used alone or in combination with powder food, oil products, sugar coated cakes, etc. Due to the solubility of aluminum lake under acidic and alkaline conditions, its use is limited. It is still used for coloring food packaging materials, printing inks, toys, tableware, etc. The production method involves reacting aluminum salts such as aluminum sulfate and aluminum chloride with alkali metal salts such as sodium carbonate to obtain aluminum hydroxide, which is then added to an indigo aqueous solution and precipitated. The production method of aluminum lake is to react pigment substances with aluminum oxide in aqueous solution. Aluminum oxide is an undried substance prepared by reacting aluminum sulfate or aluminum chloride with sodium carbonate, sodium bicarbonate, or ammonia. After the formation of the lake, it is filtered, washed with water, and dried.