we synthesis sodium salt of malic acrylic copolymer, when I tried to measure the solid content in oven at 150 °C for half an hour the result be 37.2% but when I tried to use refractomer the result be 45°brix
wt/wt% (weight/weight percent): This is a unit of concentration that expresses the ratio of the weight of a solute to the weight of the total solution, multiplied by 100. It is often used in chemistry and other scientific disciplines. For example, if a solution contains 5 grams of solute and 95 grams of solvent, the wt/wt% concentration of the solute would be (5 g / 100 g) * 100 = 5%.
°Brix: This is a unit of concentration used in the food and beverage industry, particularly in the measurement of sugar content in liquids. It represents the percentage of sugar (sucrose) by weight in a solution. One °Brix is equal to 1 gram of sucrose per 100 grams of solution. So, if a liquid has a sugar concentration of 10 °Brix, it means it contains 10 grams of sucrose per 100 grams of the solution.
In summary, wt/wt% is a general unit of concentration that expresses the weight ratio of a solute to the total solution, while °Brix specifically refers to the weight percentage of sucrose in a solution and is commonly used in the food and beverage industry.
Because total soluble solids are increasing and increasing diffusion copolymerizatin step so that increasing refractive index g/dl(g/100ml).
brix(bx) measure of the dissolved solids in a liquid for example one gram of that solid in 100g of solution and represents the strenght of the solution as percentage by mass
The terms "wt/wt%" and "°Brix" are both used to express the concentration of a solute in a solution, but they represent different measurement methods and units of concentration.
In summary, while both wt/wt% and °Brix express the concentration of a solute in a solution, wt/wt% is a general measure of concentration expressed as the weight of the solute per 100 grams of the total solution, whereas °Brix is specifically used to measure the sugar content in a solution based on the refractive index and is expressed in degrees
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