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Sodium alginate

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Textile printing grade sodium alginate
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Food grade sodium alginate

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pharmaceutical grade sodium alginate
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potassium alginate

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alginic acid

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mannitol
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Iodine
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Sodium alginate viscosity measurement method

Release date:2013-01-10


  1. Principle: the viscometer rotor rotates in the sodium alginate solution, viscous resistance, make the hairspring produces torque, which is connected with a pointer, and viscous drag, and finally reached a balance, through the dial disc indicator readings, the reading again by specific coefficient that is its viscosity.
  2. Instruments: rotational viscometer.
  3. Measuring steps:
    (1). Preparation of 1% sodium alginate aqueous solution 500mL to 600mL: 5.0g ~ 6.0g alginate samples, add distilled water, first by sample quantity to calculate the required amount of distilled water. The sample is dissolved, should open the electric mixer, specimen, slowly added under stirring stirring, until a homogeneous solution,placed to the bubble does not spare.
    (2) .Adjust the solution temperature 20 ± 0.5 ℃, then press the viscometer operation rules were measured, start the viscometer, rotating about 0.5min, the rotary table pointer stability after reading.
  4. The results calculated :
    Calculation formula of viscosity :
    A=S×k
    A —— Viscosity, unit (mPa · s);
    S ——Rotational viscometer indicator readings;
    K ——Determine the corresponding rotor and choose when the coefficient of speed.
  5. Repeatability:
    Take the arithmetic mean as the results of two parallel samples, allow relative deviation is 3%.
Lianyungang huanyu seaweed co., LTD. Mainly produces sodium alginate
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