Savillex DST-1000 User manual

DST-1000
Acid Purification
System
User’s Manual

Savillex DST-1000 Acid Purification System
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1.0 Introduction................................................................................................................... 3
1.1 Purpose ............................................................................................................................................. 3
1.2 Liability Disclaimer............................................................................................................................. 3
1.3 Sub-Boiling Principle ......................................................................................................................... 3
2.0 Safety Information........................................................................................................ 3
2.1 Danger Categories and Signal Words ............................................................................................... 3
2.2 Qualified Users .................................................................................................................................. 4
2.3. Intended Use .................................................................................................................................... 4
2.4 General Safety Information ............................................................................................................... 4
2.5 Safety Shut-Off .................................................................................................................................. 5
2.6 Hazards Associated with Connections, Tubing and Containers ........................................................ 5
2.7 Electrical Hazards ............................................................................................................................. 6
2.8 Safety Labeling ................................................................................................................................. 6
3.0 About the DST-1000 Acid Purification System........................................................... 7
3.1 Visual Identification ........................................................................................................................... 7
3.2 Description ........................................................................................................................................ 7
3.3 Specifications .................................................................................................................................... 8
3.4 Unpacking and Inspection ................................................................................................................. 9
4.0 Preparation for Use .................................................................................................... 10
4.1 Recommended Environment ........................................................................................................... 10
4.2 Installation ....................................................................................................................................... 11
4.3 Starting Materials ............................................................................................................................ 13
4.4 Initial Cleaning ................................................................................................................................. 14
4.5 Cleaning of 1000 mL Purillex™ PFA Distillate Collection Bottle and Transfer Closure ................... 15
5.0 Operation..................................................................................................................... 15
5.1. Standard Operating Instructions ..................................................................................................... 16
5.2 Turn the Power ON ......................................................................................................................... 17
5.3 Refilling ........................................................................................................................................... 18
5.4 Changing Acid Types ...................................................................................................................... 18
6.0 Optional Operational Configuration.......................................................................... 18
6.1 Use of a Timer ................................................................................................................................. 18
6.2 Overnight Operation ........................................................................................................................ 18
7.0 Maintenance, Troubleshooting and Service............................................................. 19
7.1 Cleaning and Decontamination ....................................................................................................... 19
7.2 Troubleshooting .............................................................................................................................. 21
7.3 Repairs ............................................................................................................................................ 22
8.0 Appendix..................................................................................................................... 24
8.1 Warranty Statements....................................................................................................................... 24
8.2 Electrical Schematic ........................................................................................................................ 25
8.3 Declaration of CE Conformity .......................................................................................................... 26

Savillex DST-1000 Acid Purification System
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1.0 Introduction
1.1 Purpose
The Savillex DST-1000 Acid Purification System (DST-1000) is intended to provide a means of purifying acids
or water to a level suitable for use in highly sensitive analytical chemistry applications. The DST-1000 is
designed and manufactured to be as simple to use and safe to operate as possible.
This manual describes the Savillex DST-1000 and contains product specific information, current as of the date
of publication, for the safe use and operation of this equipment. Please read this manual carefully and
familiarize yourself with the DST-1000 prior to operating the equipment. Should you have any questions
regarding this product, or the contents within this manual, please contact Savillex.
Savillex Corporation
10321 West 70th St. Eden Prairie, MN USA
Phone: [phone] | Fax: [phone]
[e-mail] | www.savillex.com
1.2 Liability Disclaimer
Every effort has been made in the preparation of this publication to provide the user with the most current,
correct and clearly expressed information and instructions required for use and operation of the DST-1000.
Savillex Corporation assumes no liability or responsibility for damages resulting from errors, omissions and
accuracy of the information in this manual. The information included has been compiled from a variety of
sources and is subject to change without notification. Savillex Corporation makes no warranties or
representations regarding the quality, content, completeness, suitability, adequacy, sequence, accuracy, or
timeliness of such information. If you discover any errors or omissions we encourage you to contact Savillex
immediately.
We actively request your comments regarding improvements to this manual and the DST-1000 itself. We
reserve the right to make technical changes as deemed necessary.
1.3 Sub-Boiling Principle
The Savillex DST-1000 Acid Purification System uses sub-boiling distillation to produce high purity acid or
water from a PFA distillation unit (still). Sub-boiling distillation is a process in which a starting material is heated
to accelerate vaporization at a temperature well below its boiling point. This heating process gently vaporizes
the liquid without bubbling and the associated aerosol formation which can cause contamination of the
collected distillate. Sub-boiling distillation greatly eliminates aerosol formation and significantly improves the
purification process.
The DST-1000 allows the heated, clean, vaporized liquid to condense upon the cooler surface of the domed
section of the still. The pure condensate forms droplets, which collect and flow to the outlet port of the still.
The purified liquid distillate is then collected into a suitable container for later use in analyses.
2.0 Safety Information
2.1 Danger Categories and Signal Words
The signal words described below are used in connection with warnings throughout this manual. For your own
safety and to avoid property damage, please observe these warnings!
Signal words are highlighted in boldface and often accompanied by symbols denoting the hazard type.
Symbols and warnings are taken from the United Nations Globally Harmonized System of Classification and
Labeling of Chemicals.

Savillex DST-1000 Acid Purification System
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DANGER!
Denotes most severe hazards. Failure to follow safety instructions is likely to
cause severe personal injury, death or severe property damage.
WARNING!
Denotes less severe hazards. Failure to follow safety instructions may cause
severe personal injury, death or severe property damage.
This symbol indicates that this is important information regarding the product
or refers to a part of the manual that requires particular emphasis.
2.2 Qualified Users
This unit is intended as an experimental tool for research and development in the laboratory by qualified
analytical chemists. Only those individuals that have adequate technical training, knowledge and
demonstrated expertise should attempt operation of this unit. Observe all safety procedures and best
laboratory practices to assure safe operation. As in all laboratory operations, the user must assure that
adequate safety procedures are established to protect all personnel from the potential hazards in the use of
this product.
2.3. Intended Use
The DST-1000 is intended ONLY for use with the following materials:
Ultra-pure water (H2O)
≤ 70% nitric acid (HNO3)
≤ 37% hydrochloric acid (HCl)
≤ 51% hydrofluoric acid (HF)
DANGER! The DST-1000 is not approved for use with any other material. Using the DST-1000 with any other
material may result in personal injury or property damage. Please observe all appropriate regulations
published by government agencies, professional associations, chemical manufacturers and other regulating
bodies when working with chemicals.
2.4 General Safety Information
Purification of acids by sub-boiling distillation requires safety precautions beyond those of general laboratory
practices. The following safety information should be read carefully prior to using the DST-1000, and should
be observed at all times during the use and operation of the still.
Savillex assumes no liability for injury or damages resulting from improper handling or a failure to comply with
this information.

Savillex DST-1000 Acid Purification System
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Explosive; Fire, Blast or Projection Hazard
Electrics may ignite flammable or explosive mixtures. The apparatus is not designed for organic
chemicals. Improper use of the DST-1000 with organic material may cause personal injury or
property damage.
Causes Severe Skin Burns and Eye Damage
Take appropriate precautions during filling with and dispensing of acid. In case of contact, flush
with copious quantities of water. See reagent manufacturer’s material safety data sheet (MSDS)
for safe handling instructions.
Personal Protective Equipment
Wear recommended safety apparel when handling or working with acids.
Harmful lf Inhaled
Avoid inhalation of acid vapors.
Causes Serious Eye Irritation
Wear eye protection.
Ensure the system is in a properly functioning controlled environment (e.g. fume hood). Acid
vapor is emitted from the DST-1000 during use.
The Unit Employs High Voltage!
The DST-1000 must be connected to a grounded conductor. Connect the power cord of the
control box to a grounded power source.
Chemical Hazard!
Chemical hazards associated with the connections, tubing and containers are identical to those
noted above.
No Serviceable Parts! Do not attempt to alter or repair this unit. This instruction manual does
not include repair instructions. Contact Savillex or its local agent for service. Do Not Attempt to
Open the DST-1000 Reservoir/Condenser Assembly! The DST-1000 is not designed to be
opened and has no parts inside the reservoir/condenser assembly. Attempting to separate the
reservoir and condenser will destroy the unit.
2.5 Safety Shut-Off
If the system shows signs of damage or fails to function, turn the control knob to the OFF position and unplug
the power control box from the electrical outlet. Place an “Out of Order” sign on the still and separate and store
the power control unit to prevent accidental use. Indicator signs include:
• Visible signs of damage/leakage
• Loose components (other than tubing and ferrule nuts) are discovered
• The DST-1000 fails to operate
Contact Savillex or its local representative for service. See section 7.2 Troubleshooting.
2.6 Hazards Associated with Connections, Tubing and Containers
DANGER! Fittings, valves, tubing, vent membranes and collection containers associated with distillate or
waste collection may contain hazardous chemicals or residue.
Extreme caution should be taken when handling or replacing these items to avoid bodily contact, splashing, or
spilling. Appropriate personal protective equipment should be worn to avoid skin and eye contact.

Savillex DST-1000 Acid Purification System
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2.7 Electrical Hazards
DANGER! The DST-1000 utilizes high voltage electrical power to control the internal heating device. Repair
and servicing of this equipment must only be performed by trained and qualified electrical personnel. Proper
safety precautions and procedures must always be observed.
The Unit Employs High Voltage!
The DST-1000 must be connected to a grounded conductor. Connect the power cord of the
control box to a grounded power source.
Electrical Hazard!
High voltage is present at the electrical receptacle connector on the control box when
energized. Use CAUTION.
• Always de-energize and remove from the power source before any electrical servicing
• The power cord must only be connected to a wall outlet that is equipped with a
separate grounded connection
• Never replace the power cord. In case of damage return to Savillex for replacement
• Should fuse replacement be necessary, use only 1.0 Amp 250V 3AB fast-acting
ceramic body style
• Never energize with the control box cover removed
• Never operate in a wet, damp or spray down environment
• Never energize if the power cords have been damaged, frayed, corroded or wires
exposed
• Use extreme caution if the heater cable connector is unplugged from the receptacle on
the control box. High voltage is present when energized
2.8 Safety Labeling
The DST-1000 is designed with safety as a primary consideration. In addition to safety information in this
manual, Savillex has labeled and marked the unit to identify model number, operating voltage, wattage,
frequency, serial number and certification authority.

Savillex DST-1000 Acid Purification System
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3.0 About the DST-1000 Acid Purification System
3.1 Visual Identification
3.2 Description
The DST-1000 is intended for purification of reagent grade acids or water. The main sections of the still are
the reservoir and condenser which are molded from PFA. PFA construction minimizes the contamination
potential from extractable compounds and also allows for distillation of hydrofluoric acid. Note: THE STILL
ASSEMBLY CANNOT BE OPENED.
Acid is added to the unit via a front fill tube which also acts as gauge to show the amount of acid remaining in
the still. The large domed PFA condenser operates on the principle of differential temperature between
ambient air and the heated solution in the reservoir. There is no need for chilled water baths or re-circulating
coolant.
Heat is transferred to the reservoir via a silicone rubber heating jacket with an embedded low wattage
resistance heating element. This design provides efficient heat transfer while reducing electrical hazard. The
heater is designed so that heating the still at maximum power will not damage the unit even if the still is
operated until dry (avoid operating the still in this manner). The heating jacket also has a thermal fuse to
disable the heater to further protect against overheating.
The heating jacket is operated by a remote power control unit which should be located away from the DST-
1000 and outside of the fume hood. The power control unit is powered by alternating current voltages of 100
VAC, 115 VAC or 230 VAC, specific to local markets and geographic locations. The power cable to the still is
sheathed in silicone coated fiberglass to increase the chemical resistance, and the power cable connector is
electrically keyed to prevent the mis-application of voltage. The approximate load is 70 watts. The power
setting is adjustable, and allows for an operating distillation temperature of 50-90ºC. Operating temperatures
may vary with the liquid volume in the reservoir, and the temperature of the operating environment.
When the acid is heated to sub-boiling temperatures, high purity acid vapor is produced, which condenses on
the inside of the vessel, runs down the side walls into a collection channel, and flows through a tube into the
collection bottle.
Fig.1

Savillex DST-1000 Acid Purification System
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3.3 Specifications
Power Source (three-wire earth grounded only)
#525-1000-100 100 VAC +/- 5%, 50/60 Hz
#525-1000-115 115 VAC +/- 5%, 50/60 Hz
#525-1000-230 230 VAC +/- 5%, 50/60 Hz
#525-1000-230UK UK 3-pin fused plug 230 VAC +/- 5%, 50/60 Hz
Power 70 Watts (resistance heater)
Shipping Weight 7.25 kilograms/16 pounds
Dimensions
Still with bottle bracket 36.5 cm x 20 cm (L x W)
Height 45.0 cm
Power cord 3 meters (still to control unit)
2 meters (control unit to grounded outlet)
Installed Location Distillation unit within chemical fume hood
Reservoir Capacity 1000 mL
Materials
Still Reservoir and condenser PFA
Purillex 1000 mL PFA collection bottle PFA
Fill Tube Assembly PFA
Tubing and fittings PFA
Heating jacket Silicone rubber
Stand and bottle bracket Polypropylene
Power control ABS housing
Cable to still Silicone rubber sheathed
Ambient Temperature +21°C ±10 (70°F ±18)
Distillation Temperature Approximately 50°to 90°C (adjustable)
Warm-up Time 2-3 hours (depending on fill volume)
Over Temperature Protection Provided
Cooling Water Not required
Approx. Distillation Rate (after warm-up) 50 mL/hr @ 90°C for water
30 mL/hr @ 80°C for water
10 mL/hr @ 60°C for water

Savillex DST-1000 Acid Purification System
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3.4 Unpacking and Inspection
Open the shipping carton and remove all still components. Check the components against the following
packing list and inspect for shipping damage such as cracks, scratches, dents, etc. Should any components
be missing or damaged, contact your local representative or Savillex. We recommend retaining all packaging
until it is determined that the equipment is functioning properly.
For safety reasons, never operate the unit if it exhibits visible signs of damage.
If the shipping carton and contents are damaged, retain the packaging for inspection by the freight
company. Notify your representative or Savillex for assistance in filing an insurance claim.
Packing list for the Savillex DST-1000 Acid Purification System
(1) Still assembly, PFA reservoir/condenser and stand
(1) Heating assembly with power cord
(1) 1000 mL Purillex™ PFA collection bottle
(1) Graduated fill tube and bottle bracket
(1) GL45 transfer closure with (2) ¼” tube outlets with vent nut
(4) Base legs
(1) PFA distillate tubing, ¼” OD x 22 cm long
(1) PFA drain tubing, ¼” OD x 90 cm long
(1) Fill tube connector tubing 3/8”OD x 19.3 cm long
(2) PFA ¼” OD ferrule nut
(10) Replacement 9 mm PTFE filters for bottle vent
(10) Replacement 25 mm PTFE filters for filter vent
(1) PFA/PTFE stopcock drain valve
(1) Power control unit for heating assembly
(for appropriate local VAC power)
(1) DST-1000 Acid Purification System user’s manual (CD)
Note:
The DST-1000 was shipped with PFA cap plugs on the (1) DISTILLATE port and (1) TEE FITTING DRAIN
port. The top vent on the still condenser was also fitted with a 25 mm PTFE filter membrane. Confirm that all
of these components are in place.

Savillex DST-1000 Acid Purification System
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4.0 Preparation for Use
4.1 Recommended Environment
The DST-1000 should ONLY be operated under an acid fume hood. Although the liquid will remain fully
contained within the vessel, small amounts of acidic vapors will be released through the breather vents. It is
strongly recommended that DST-1000 be used in a fume hood dedicated to acid purification only. The DST-
1000 should not be operated with other sample preparation activities which generate acidic fumes which can
damage the DST-1000 heating element. The DST-1000 should not be operated or used with potentially
flammable, explosive or contaminating materials. The unit is not rated for use in areas requiring intrinsic
safety, explosion proof or any areas that may contain flammable or explosive materials. Please observe all
appropriate regulations published by government agencies, professional associations, chemical manufacturers
and other regulating bodies.
The DST-1000 power control unit is intended for installation outside the fume hood, with the 3 meter power
cable passing through a designated port in the hood to the heating jacket connection.
The following additional conditions are recommended for the environment
Emissions
Operate DST-1000 in fume hood with vent caps and membranes in
place.
Ambient
Temperature
+21°C ±10 (70°F ±18)
Note: The temperature of the environment may affect the rate of
distillation and the quality of the distillate.
Relative Humidity
< 85% - High humidity is not good for electrical parts. DO NOT operate
the still in wet or wash down conditions.
Space
Requirements
The footprint of the DST-1000 stand is 20cm x 20cm x 45cm high.
Space should also be allocated for bottle bracket and 1000 mL PFA
collection bottle.
Power Source
The power control unit is shipped in a configuration suitable for standard
local AC wall outlet power.
100 VAC +/- 5%, 50/60 Hz
115 VAC +/- 5%, 50/60 Hz
230 VAC +/- 5%, 50/60 Hz
Verify that the power source voltage falls within the range given above. If not, contact your local representative
or Savillex for advice.