Item No.: SC475 - 50mL Digestion Vessel with Screw Cap, 500pk
| Qty | Price |
|---|---|
| 1 | $110.00 |
| 5 | $100.00 |
| 10 | $95.00 |
| 30 | $90.00 |
SC475 digestion vessels provide premium performance in your SC154 HotBlock™, SC100 HotBlock or AutoBlock™. These vessels are molded of clarified homopolymer polypropylene assuring higher working temperatures and greater chemical resistance than the commonly used co-polymer polypropylene. Vessels are graduated to 50mL and have a total 68mL capacity.
The 33mm threaded cap is lined with a 0.040 polyethylene-faced foam liner for a leak-proof seal. Only the metals-free polyethylene liner contacts the sample. 500 vessels with caps. Total volume of the vessel is 68ml.
Each case comes with a Certificate of Analysis For Cleanliness and Volume Accuracy. Click here for a sample of the SC475 Certificates.
CLICK HERE for a free sample pack
Question/Answer
Is the base of your # SC601 completely flat ? We are using the CPI 50 mL tube at this moment, and the base of the tube is not completely flat.
The SC601 cup is mostly flat on the bottom. It does stand up on its own but the bottom of the cup has a small dimple that is concave up into the bottom of the cup. The SC475 vessel is completely flat on the bottom with no dimple at all. It is a screw cap instead of a snap cap.
How can one LOT number cover so many products example: #1012151
Lot #s for the various parts molded here at Environmental Express are based on the partent resin used for those parts. Those parts that use the same type of plastic are often molded with the same lot of resin material.
What are the dimensions of the vessels? We have a CPI Mod Block and aren\'t sure if they will fit?
The SC475 cups are 34.5mm x 109mm. We also offer part # SC601 which is the snap cap cup specific to the CPI block.
What is the highest conc acid (HF/HNO3/HCL) you can use with the tubes? Whats the maximum temperature, and what max time digestion\'s can take place?
The maximum temperature polypropylene will withstand is 130 deg C before it melts. The longer the tubes are exposed to high temperature the more brittle the plastic will become. Typical digestion times, following US EPA methods, is around 6 or 7 hours for a maximum. \r\nThese methods also typically use concentrated nitric, sulfuric, and hydrochloric acids though they are added to water samples. Small amounts of these may also be added to soil samples (around 1g of soil) and the polypropylene cups have held up well in those types of digestions. Hydrofluoric acid at room temperature is fine with polypropylene but may cause issues at elevated temperatures.
Can caps only be bought?
Yes--you can purchase a 500pk of green caps only as part # SC475-C or white caps only as part# SC475-CW.
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