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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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • 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 5 reviews
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B
Verified Purchase
billy
Draper, US
★★★★★ 5
My dog is a toy destroyer
Color: Consuela the Cactus - Large, Size: Large Dog, Color: Consuela the Cactus - Large, Size: Large Dog
I’ve had a hard time trying to find toys that my dog, Zara loves because she’s actually very picky. Ive gotten plenty of Kong toys that are well known to be indestructible but she wants nothing to do with them. Then I got her ropes and that seemed to be good for a while until she was getting sick in the middle of the night from eating all of the string. Stuffed toys aren’t good because she’ll rip them within seconds and eat all of the stuffing. I felt like I’ll never score the perfect toy for her. I found the three layered cactus toy and decided to give it a go. It’s clearly designed to be ripped and destroyed to get the ball in the middle which is actually really cute and fun to see all of the layers. The cactus arms have stuffing and of course that’s the first thing she went for and ate. I had to watch her and make sure I took the stuffing away before she ate it. And before I knew it, she ate half of the first layer fabric lol once she got through the first layer, all she’s been doing is walking around the house with the toy in her mouth. But now she’s tired and passed out on the couch from all of the fun. This toy won’t last long with a toy destroyer but it sure does give them something to do and it’s a cute toy. I do recommend!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2024
K
Verified Purchase
Klara Gengler
Birmingham, US
★★★★★ 5
Last a while. Will be buying more toys soon.
Color: Consuela the Cactus - Large, Size: Large Dog
Best dog toy I have ever bought. I have three dogs, two at the time I bought this toy. It took them over a year to break through the first layer. The flower comes off first so be careful your dog doesn't swallow it. It still has the second layer so it still looks like a cactus. No stuffing to clean up when they tear into it, which makes it far less messy than other toys. One of my dogs is obsessed with fetch so I use it like a ball inside. The oval shape makes it hard to ensure when it bounces that it will bounce straight. It's bounced into walls and other stuff that I wasn't intending it to hit. Not much of a squeak so I can let them play with it for hours and I don't get annoyed with the noise. Great toy that lasts a while.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
C
Verified Purchase
Cassie
Birmingham, US
★★★★★ 5
Nice Value
Color: Consuela the Cactus - Large, Size: Large Dog
Very cute! Its soft and feels like it is well made. It is a heavier toy and a tougher one. Not a plush toy. I will order again for our older dogs. Nice value for sure!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
B
Verified Purchase
Blakely McAllister
Lowell, US
★★★★★ 5
Great toy for our best boys!
Color: Consuela the Cactus - Large, Size: Large Dog
You can never go wrong with BarkBox toys and this was no exception. Our dogs like toys that have squeakers and that they can tear into. This style of toy fits the bill. The design is cute as well. I’ve had this in the house for months and, while it’s definitely seen better days, it’s still intact and they haven’t gotten to the inner layer. (Not for want of trying.) The perfect type of toy for our fur babies.
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Reviewed in the United States on February 10, 2026
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Survives 7 months so far.
Color: Christmas Consuela, Size: Large Dog
It is still intact after nearly 7 months of constant play. My blue heeler normally destroys toys in just a few weeks. Consuela has exceeded expectations of survival with an extremely chewy, destruction prone dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026

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