Monday, March 30, 2015

The Chemistry That Keeps Your Pistons Pumping | Greyhound Chromatography Certified Reference Standards

The Chemistry That Keeps Your Pistons Pumping

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As of 2014, there are about 250 million cars and trucks in the U.S., according to the Los Angeles Times. Each one of these millions of vehicles has an engine that contains pistons pumping thousands of times each minute. To keep each of these cars moving, those pistons pumping and millions of people getting where they need to go, the engine needs to be lubricated and protected from wear and tear.

In the 1940s, oil engineers accidently discovered zinc dialkyldithiophosphate or ZDDP. When added to motor oil, it adheres to the surrounding surfaces, protecting them from rust and other normal wear. However, the chemistry behind why ZDDP turns into the tribofilm that coats these engine surfaces has long been kept unknown, until now.

ZDDP in the right environment
Scientists from ExxonMobil and the University of Pennsylvania came together to research the chemistry and physics behind popular oil additives. They published their results in the journal Science.

"ZDDP has been used for more than 70 years," said Nitya Gosvami a research project manager in mechanical engineering department head Robert Carpick's in a statement. "It's one of the most successful antiwear additives we have, but we still don't understand how it works. We do know that everything that happens during sliding is occurring on the first few atomic layers of the surfaces, so we have to use the knowledge we have from nanotechnology and apply it to understand what's going on there."

Aside from knowledge, the scientists wanted to learn more about how ZDDP worked in order to make engines and oils more effective and efficient, getting rid of minor flaws, such as ZDDP's increase of friction in the engine.

The researchers discovered that ZDDP is a smart material that forms under stress or pressure. It's smart because it stops itself from growing larger than the space allows. The pistons create the perfect environment for the film to develop because the pressure changes the amount of energy needed for a chemical reaction to occur, Carpick explained in the statement.

The researchers credited tribochemistry and the nanoscale research approach for finding the answers about how the film forms and why ZDDP has been so effective.

"Nanotechnology's not just for doing cool science," Gosvami said. "You can bring your industrial products into the lab and we can do research on them in a big way. We can get a better understanding of them on the molecular scale."

The chemistry of motor oil
The researchers explained in their paper that they hope to build off this finding and continue the work to develop smarter oils for cars. Currently motor oil is made with a number of naturally occurring and added chemical components.

As Bob Is The Oil Guy explained, oil is made with a slew of chemicals that fit into a short list of chemical categories. For example, organomatalics are used as detergents to neutralize acids that are created through normal engine combustion. Similarly, dispersants are a category of chemicals that help clean out the solid parts of waste from combustion. Esters and partial esters are used to aid lubrication as well as seal conditioners.

Many chemical additives are designed to stop reaction from occurring. Silicone products help prevent foam buildup, while pour point depressants and corrosion inhibitors help stop rust, wear and wax crystals.

There are also huge polymeric molecules that form Viscosity Index Improvers or VII to control the rate at which organic fluids thin when heated, Bob Is The Oil Guy explained.

The types of chemicals used depend on brand, price and purpose among other factors. There are also synthetic motor oils that mimic the affects of organic motor oil and last much longer.

For over 30 years Greyhound Chromatography has been supplying high quality Chromatography consumables to laboratories around the world. Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Forensics, Chemical and Pharmaceutical analysis. Backed by a highly experienced technical services team, Greyhound is the preferred source amongst today’s analysts.

Greyhound Chromatography is pleased to supply Chem Service Certified Reference Standards to Research and Analysis laboratories worldwide.

The benefits of using Chem Service Certified Reference Standards:

  • High Quality: High purity chemicals for use as certified reference materials
  • Cost Effective: Products packaged in small quantities to minimize expenses
  • Wide Selection: 1,200 pesticide and metabolite reference standards (including banned and discontinued items)
  • Certification backed with experience: 50 years of experience. ISO 9001:2008 : ISO/IEC 17025:2005 certification :
  • ISO Guide 34:2009: For Organic Reference Material


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Friday, March 27, 2015

Easter Opening Hours

Easter opening hours

Don't forget we are closed for business on Good Friday and Easter Monday.  

Ensure to place your orders quick to avoid any delays, simply call us on +44 (0) 151 649 4000, email sales@greyhoundchrom.com or order online.

Full schedule of our Easter opening hours:
All times are GMT

Monday 30th March    08:30 - 17:00 
Tuesday 31st March   08:30 - 17:00 
Wednesday 1st April   08:30 - 17:00 
Thursday 2nd April      08:30 - 17:00 
Friday 3rd April    GOOD FRIDAY - CLOSED 

Monday 6th April   EASTER MONDAY - CLOSED    
Tuesday 7th April        08:30 - 17:00 
Wednesday 8th April  08:30 - 17:00
Thursday 9th April       08:30 - 17:00
Friday 10th April          08:30 - 17:00

For over 30 years Greyhound Chromatography has been supplying high quality Chromatography consumables to laboratories around the world. Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Forensics, Chemical and Pharmaceutical analysis. Backed by a highly experienced technical services team, Greyhound is the preferred source amongst today’s analysts.

Contact Us!

Tel:       +44 (0)151 649 4000
Web:    www.greyhoundchrom.com
Email:  info@greyhoundchrom.com

Follow us!

Twitter:       @greychrom
Facebook: www.facebook.com/GreyhoundChromatography
Google+:    www.google.com/+Greyhoundchrom
YouTube:   www.youtube.com/GreyhoundChrom
Linked In:   www.linkedin.com/company/greyhound-chromatography

Tuesday, March 24, 2015

Special Update: ArabLab 2015

Trajan Scientific visit Greyhound Chromatography at ArabLab 2015

 
Andy Hall EMEA Operations and Distribution Centre - Trajan Scientific, SGE Analytical Science
L-R: Andy Hall, EMEA Operations & Distribution Manager - Trajan Scientific, Gina Greyhound, George Greyhound & Paul Massie MD Greyhound Chromatography


We're currently exhibiting at Arablab 2015 at the Dubai International Exhibition Centre, in the United Arab Emirates, on stand #453. There's still time to come and see us, you can even plan ahead, save time and schedule a meeting with us by quickly registering, it takes less than 2 minutes.

Register for a meeting 

Day two has proved incredibly busy, but we did get chance to catch up with Andy Hall, EMEA Operations & Distributions Manager from Trajan Scientic (Pictured) and introduced him to our furry friends, and new exhibition helpers George and Gina the Greyhounds.

Trajan acquired SGE Analytical Science (SGE) the world renowned brand for components and consumables used in scientific analysis back in 2013, and we are very pleased to team up with SGE to provide a fantastic offer of a FREE Syringe and 10% OFF your next Reference Standards order with every eVol XR Starter Kit purchased.

The eVol is a revolutionary product, that we are very proud to present as part of our product portfolio. Click the image below to find out how the eVol can revolutionise workflows, efficiencies and accuracy, and take advantage of this fantastic offer.

 For over 30 years Greyhound Chromatography has been supplying high quality Chromatography consumables to laboratories around the world. Greyhound’s extensive range covers all areas of Environmental, Petrochemical, Food, Forensics, Chemical and Pharmaceutical analysis. Backed by a highly experienced technical services team, Greyhound is the preferred source amongst today’s analysts.

Contact Us!

Tel:       +44 (0)151 649 4000
Web:    www.greyhoundchrom.com
Email:  info@greyhoundchrom.com

Follow us!

Twitter:       @greychrom
Facebook: www.facebook.com/GreyhoundChromatography
Google+:    www.google.com/+Greyhoundchrom
YouTube:   www.youtube.com/GreyhoundChrom

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