SKU: 23726934625

DST-4000 Acid Purification System, 120 V (525-4000-120)

Sale price$6374.11 Regular price$7082.34
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Description

DST-4000 Acid Purification System, 120 V (525-4000-120)All wetted parts are molded PFA No cooling water required Graduated front fill tube shows acid level remaining Separate, digital temperature controller with auto shut off feature Includes (2) 2000 mL Purillex PFA collection bottles CE certified and RoHS compliant One year parts warranty 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

  • All wetted parts are molded PFA
  • No cooling water required
  • Graduated front fill tube shows acid level remaining
  • Separate, digital temperature controller with auto shut-off feature
  • Includes (2) 2000 mL Purillex PFA collection bottles
  • CE certified and RoHS compliant
  • One year parts warranty
  • 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.

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

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

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Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 23726934625

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4.3 ★★★★★
Based on 8 reviews
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Product Reviews
R
Verified Purchase
R. Church
Lexington, US
★★★★★ 1
My dog's favorite toy, but
Size: 15 Inch
My dog loves his "lizzie" but the quality has gone down. The leather is thinner and easily torn, exposing the squeaker which becomes a swallowing hazard. Of course, no squeaker and half the fun is gone. For $10, I won't be buying any more of these. Sorry about that my furry friend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
H
Verified Purchase
Heidi G
Belleville, US
★★★★★ 5
Almost as good a chewing on my belt.
Size: 25 Inch
My corgi has always loved chasing her leash or a belt so I thought the snake would be a good fit for her. It quickly became her favorite. The squeakers lasted for maybe a month? Once there was a hole then we took them all out so she wouldn't choke. The snake without the squeakers is still a favorite. She's been chewing the tail end consistently and likes to lick it for some reason. I recommend this as a good tug toy. I like that it was made of leather.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
N
Verified Purchase
ncgirl
Boise, US
★★★★★ 3
DISAPPOINTED
Size: 25 Inch, Size: 25 Inch
I've bought this 9 times since it's my Maltipoos' favorite toy! Unfortunately the one that just came in is not up to par as those previously bought. The leather was cut sloppily & the sewing sometimes ran off the leather completely or so close to edges could easily be chewed open. I can't send back because bought as a treat before leaving for trip & the fact he's already seen it ! I used sewing machine to sew areas that were close to edges - had to take out stitches to remove top squeaker to be able to sew around that area on both sides. Don't know how long this one will last even though I used quilting thread which is a bit stronger than regular thread. Hope this was just a bad one & if so, wish company's quality control would have caught this & rejected it.
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Reviewed in the United States on March 21, 2026
K
Verified Purchase
KJ
Charlottesville, US
★★★★★ 4
Not for aggressive chewers
Size: 36 Inch
My GSD ate half of it within 20min before I caught her. I don’t think it was meant for aggressive chewers so I can’t fault the product for that. My dogs did have a few hours of fun with it playing tug and it held up well.
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Reviewed in the United States on October 9, 2025
E
Verified Purchase
EWE
Alexandria, US
★★★★★ 5
Doug (my daughter’s dog) absolutely LOVES THIS TOY!
Size: 15 Inch
My daughters dog, Doug , loves this toy….. I have bought 3 of these in the past 12 months! Though he will destroy it, he chews and plays with it until there is almost nothing left!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026

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