Determination method of hydrazine nitrate content in Shantui-3
A determination method, the technology of hydrazine nitrate, is applied in the direction of chemical analysis by titration method and the preparation of test samples, etc. It can solve the problems of low analysis efficiency, long time consumption, toxic gas release, etc., achieve broad application prospects, and simple measurement steps , the effect of short reaction time
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Embodiment 1
[0047] Pour 60 mL of pure water into a 100 mL beaker. The 1mL syringe draws the sample, wipes off the residual sample outside the needle, and seals the needle with a silicone pad. Weigh the mass of the syringe, sample and silica gel pad to be 3.5733g. Remove the silicone pad, submerge the needle into the pure water in the beaker, and push the syringe to add the sample. Wipe off the residual solution outside the needle, and seal the needle with a silicone pad. Weigh the mass of the syringe, sample and silica gel pad to be 3.2372g. The sample was weighed by subtraction method, and the mass of the added sample was 0.3361g. Then add 4mL acetone, stir fully, and use the standard titration solution of sodium hydroxide to titrate to the end point through the automatic potentiometric titrator, the volume of sodium hydroxide consumed is V 1 It is 8.3133mL. Add 0.5 mL of neutral formaldehyde, and use the standard titration solution of sodium hydroxide to titrate to the end point th...
Embodiment 2
[0054]Pour 80 mL of pure water into a 100 mL beaker. The 1mL syringe draws the sample, wipes off the residual sample outside the needle, and seals the needle with a silicone pad. Weigh the mass of the syringe, sample and silica gel pad to be 3.6423g. Remove the silicone pad, submerge the needle into the pure water in the beaker, and push the syringe to add the sample. Wipe off the residual solution outside the needle, and seal the needle with a silicone pad. Weigh the mass of the syringe, sample and silica gel pad to be 3.3967g. The sample was weighed by subtraction method, and the mass of the added sample was 0.2456g. Then add 5 mL of acetone, stir fully, and use the standard titration solution of sodium hydroxide to titrate to the end point through the automatic potentiometric titrator, the volume of sodium hydroxide consumed is V 1 It is 6.0976mL. Add 1mL of neutral formaldehyde, and use sodium hydroxide standard titration solution to titrate to the end point, the volu...
Embodiment 3
[0061] Pour 80 mL of pure water into a 100 mL beaker. The 1mL syringe draws the sample, wipes off the residual sample outside the needle, and seals the needle with a silicone pad. Weigh the mass of the syringe, sample and silica gel pad to be 3.5896g. Remove the silicone pad, submerge the needle into the pure water in the beaker, and push the syringe to add the sample. Wipe off the residual solution outside the needle, and seal the needle with a silicone pad. Weigh the mass of the syringe, sample and silica gel pad to be 3.2891g. The sample was weighed by subtraction method, and the mass of the added sample was 0.3005g. Then add 5 mL of acetone, stir well, and titrate to the end point with an automatic potentiometric titrator using a sodium hydroxide standard titration solution. The volume V1 of sodium hydroxide consumed is 7.4451 mL. Add 1.5 mL of neutral formaldehyde, and titrate to the end point with an automatic potentiometric titrator using a sodium hydroxide standard...
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