Are you getting low recovery rates with your Karl Fisher?  We may know why.
Fri, 5/02/10 – 11:26 | No Comment

If your operating a dual-reagent Karl Fisher Titrator and your getting lower than expected moisture results you may want to check a few things.
First, make sure your analytical balance or specific gravity calculation is not …

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Titration

Titrations in the petrochemical, Biodiesel or food industries to define oils or fats. Acid-base titrations, Redox titrations

Density/Refractive/Brix

Density and Brix measurements of fruit, drinks, sauces, etc., refractive index and concentration measurement of materials

Surface Analysis

Explores measuring surface tension of liquids and contact angle analysis of solid substrates

Thermal

Concepts of heat flows through material, thermal conductivity of material and Wet bulb Globe Thermometer (WBGT)

Karl Fischer Titration

A form of titration dedicated to measuring Moisture with parts-per-million accuracy – coulometric or volumetric

Density/Refractive/Brix, Uncategorized »

Density of liquids; introduction
Fri, 30/04/10 – 12:52 | No Comment

Density of liquids; introduction

Density is a physical property of matter. Density is the amount of matter occupying a space. The more matter in that space, the greater the density. Matter can be in either a solid, gaseous, plasma or liquid form. Mathematically, density is expressed as a ratio of mass to a given volume as Density = Mass / Volume

You might be thinking, so what. I would probably agree with you but have you seen the news recently about oil spills? How about the one that just happened in the Gulf of Mexico? Since oil is less dense than water it floats. Look out Florida, Alabama, Mississippi, Louisiana, and Texas!

Liquids have different densities and will not mix if the difference in densities is great enough. Temperature is an important factor that can affect a liquids density too. In general, as liquid temperature increases, density decreases.

As you might expect knowing the density of a liquid serves numerous purposes and can provide valuable information for making decisions. Density can tell you how much sugar is in a can of soda, or how much gasoline and kerosene is in a petroleum product, or even aid someone in predicting how two or more liquids will interact. Understanding what density is, what affects density, and how density affects other physical properties is also important in using and translating this information into an everyday useful tool.

We live in a physical world and so it would make sense that we would want to be able to define these physical properties around us. Having a way to define these physical properties is helpful to those who need to use the information.
• How much space does it take up?
• How heavy is it?
• How much of this can we put into that?
• What is it?
• Many everyday products are packaged by volume but sold by weight
• Fluid properties; predictive correlations can be made if you know the density
• If we change some of the ingredients that make up the fluid property will it change the weight?

The neat thing about understanding liquid density is that it can answer not only the three basic questions; What is the mass (weight) of the liquid?, what is the volume of the liquid? What is the density of the liquid? But also, what is the liquid? Yes, we can actually compare liquids to grade and categorize them using a term known as specific gravity.
If you found this interesting stop back again as we explore further…

Are you getting low recovery rates with your Karl Fisher? We may know why.
Fri, 5/02/10 – 11:26 | No Comment
Are you getting low recovery rates with your Karl Fisher?  We may know why.

If your operating a dual-reagent Karl Fisher Titrator and your getting lower than expected moisture results you may want to check a few things.
First, make sure your analytical balance or specific gravity calculation is not …

Karl Fisher; Aquapal III Seals and Caps=lower drift
Wed, 16/09/09 – 9:53 | No Comment
Karl Fisher; Aquapal III Seals and Caps=lower drift

We have found that a number of Aquapal III users have been operating the Karl Fisher titrator without the seals that go with the caps on the vessel. If the seals are not used excessive …

ASTM D02 Meeting; Scientificgear hosts hospitality suite in Norfolk, VA
Mon, 20/07/09 – 10:11 | No Comment
ASTM D02 Meeting; Scientificgear hosts hospitality suite in Norfolk, VA

June 15-19, 2009 – Norfolk, VA ;  ASTM D02 Meetings: Petroleum Products and Lubricants
Scientificgear co-hosts hospitality suite on Monday, June 15, 2009 for members and attendees.
Providing testing equipment and technical support for common petroleum tests …

Karl Fisher Titrator; The ugly Aquapal III that could…
Mon, 20/07/09 – 9:45 | One Comment
Karl Fisher Titrator; The ugly Aquapal III that could…

Wow!  This 10 year old Aquapal III (coulometric Karl Fisher Titrator) came in for service last month looking pretty rough.   After an initial inspection of the unit we were able to determine only minor repairs …

Karl Fisher titration; solid type samples; MKC610DT+ADP611
Fri, 19/06/09 – 10:22 | No Comment
Karl Fisher titration; solid type samples; MKC610DT+ADP611

We’ve run many karl fisher tests for people who wanted to know if and how it could be done. You hear a lot about people running a traditional karl fisher titration using direct injection …

refractometer; wrestling and hydration podcast
Mon, 27/04/09 – 11:35 | No Comment
refractometer; wrestling and hydration podcast

Wrestling is a sport where weight classes are established to better match athletes by size.  Competition can be fierce within weight classes.   Sometimes athletes move up and down between weight classes to better compete …

 
icon for podpress  refractometer; wrestling and hydration [28:19m]: Play Now | Download

Karl Fisher Titration; running a direct injection test on a titrator
Sat, 18/04/09 – 12:10 | No Comment
Karl Fisher Titration; running a direct injection test on a titrator

Running a direct injection test on a karl fisher titrator is fairly straight forward.  You will need to draw your sample into your syringe, and then weigh it (e.g. the full syringe with sample).  We …

Karl Fisher; Excess Drift
Wed, 25/03/09 – 9:59 | No Comment
Karl Fisher; Excess Drift

If you are getting excess drift > 34 ug/min there may be more than one cause and solution to remedy the error.
These solutions are general best practices for moisture testing but apply specifically to the …

LIVE! From Pittcon 2009 – Chicago
Wed, 11/03/09 – 13:59 | No Comment

Hello everyone!
We are currently in the middle of Pittcon 2009 and this seems to be a banner year for analytical chemistry and applied spectroscopy. I have heard there are a record number manufacturers and organizations …

press release; Scientific*gear to Exhibit at Pittcon 2009
Tue, 3/03/09 – 14:25 | No Comment

Press Contact:
Amber allman
463 Communications for Scientific*gear
202-463-0013  x203

Scientific*gear to Exhibit at PittCon 2009
Leading Provider of Laboratory Instruments in Booth 1216

March 3, 2009. Chicago, IL. Scientific*gear announced today that they will exhibit at Pittcon Conference …

press release; Scientific*gear awarded 2008 Outstanding Performance Award from KEM
Tue, 3/03/09 – 14:02 | No Comment

January, 2009
Scientific*gear receives letter of appreciation for outstanding sales performance in the year 2008.  Working with many companies and supporting customer inquiries and helping to expedite issue resolution, Scientificgear accomplished numerous goals during 2008.
“We hope …

Titration; Total Acid Number calibration tips for auto titrators
Mon, 23/02/09 – 9:51 | 2 Comments
Titration; Total Acid Number calibration tips for auto titrators

Talking points you can review while listening to the Podcast:
For TAN titration, two calibration steps are recommended.
STEP1: Calibrate pH electrode
STEP2: Factor Calibration
STEP1: With the proper pH buffer solution- run a pH calibration check by pressing …

 
icon for podpress  Calibration interview [11:21m]: Play Now | Download

WBGT Index; ISO 7243:1989, Hot environments – Estimation of the heat stress on working man
Wed, 4/02/09 – 10:18 | No Comment

I found this book on Amazon (see link below).  It’s a paperback book titiled “Hot environments – Estimation of the heat stress on working man, based on the WBGT index”.   I picked up a copy …

WBGT; Australian Open organisers defend heat policy
Fri, 30/01/09 – 9:14 | No Comment
WBGT; Australian Open organisers defend heat policy

The organisers, players, and fans all have an opinion.  While fair competition is important everyone should agree that safety should be made priority.  As weather conditions change so does the need for monitoring them so …

WBGT affecting the Australian Open outcome?
Thu, 29/01/09 – 2:37 | No Comment

January 28, 2009;  Svetlana Kuznetsova playing in the Australian Open against Serena Williams became upset when officials decided to close the roof after the first set.  Officials determined it was necessary to reduce the heat …

Refractometer; Who knew it could help with melting snow?!
Tue, 20/01/09 – 12:35 | No Comment

A discussion with Eric Kostenbauber from Atago USA.  In this segment Eric describes how one of their specialty refractometers is being used by transportation departments to assist in melting snow.  Who knew a refractometer could …

 
icon for podpress  Standard Podcast [3:18m]: Play Now | Download