Frequently Asked Questions - DST-1000/DST-4000

1. What are the differences between the DST-1000 and DST-4000?

Both the DST-1000 and DST-4000 use the principle of sub-boiling distillation for generating high purity acid. However, there are several differences between the two systems listed below. Which system is right for you depends on your labs specific needs and applications.

2. What acids can I distill with the DST-1000 and DST-4000?

The DST-1000 and DST-4000 can distill HNO3 , HCl and HF. Water can be distilled as well.

3. How much acid can I produce in an 8 hour day?

The amount of acid produced in either the DST-1000 or DST-4000 will primarily depend on the temperature setting being used. Keeping the acid below the boiling point is critical in creating the highest purity acid, therefore, the distillation temperature of the DST’s will never exceed 90°C, even on the highest temperature setting. Listed below are production rates observed by an external lab in the DST-1000 and DST-4000 for HNO3 , HCl, and HF. Production Rates (mL/hr)*

4. How complicated is it to operate the DST?

Both models are extremely simple to operate.

DST-1000

1. Add acid to the full level line (1 L) on the fill tube.
2. Switch on the unit and select temp setting - normally HI (highest temperature, fastest production)
3. Walk away. Switch off power when 100 mL is remaining.
4. High purity acid is in the collection bottle ready to be used. Discard the residual acid via the drain tube or add additional acid for your next distillation.

DST-4000

1. Add acid to the full level line (4 L) on the fill tube. Any amount from 1 L upwards can be distilled.
2. Switch on the unit and select temp setting. Normally 90°C (highest temperature, fastest production).
3. Walk away. The system will shut off automatically when 500 mL is remaining.
4. High purity acid is in the collection bottle ready to be used. Discard the residual acid via the drain tube or add additional acid for your next distillation.

5. Can the systems be run unattended?

Both DST models can be safely run unattended, simply choose the appropriate temperature setting to control the rate of distillation and prevent the unit from distilling to drynes. Some DST-1000 users use a simple electrical outlet timer to shut power off to the unit after a preset length of time.

Tray, Polypropylene, 18" x 26" x 1" (730-4525)

9 mm filter membrane, 1-2 micron (450-09-3)

25 mm Replacement Filter Membrane, 1-2 Micron (740-450-25-3)

2000 mL PFA Lab Bottle with GL45 Closure 150-01-2000