Category Archives: Chemistry

Among your "couple friends," you may have that one pair who still seem smitten with one another years or even decades into their relationship. If you're really lucky, you're one half of that relationship yourself. Hollywood couples are no different; a pair with sizzling chemistry can't hide that inevitable attraction. These matches seemed destined to happen.

On the opposite end of the spectrum is the couple that no one saw happening, or at least not for long. Russell Brand and Katy Perry lasted just 14 months. Separately, each half of the brief partnership was young, talented and fairly attractive, yet it was obvious even to fans that they didn't fit. Their chemistry felt off-kilter. While the pair was together, they seemed intent on talking about how wonderful their relationship was, but happy couples don't need to announce their happiness.

The unforgettable image of Tom Cruise jumping on a sofa on the Oprah Winfrey Show years ago was another prime example of telling instead of showing. When love is self-evident, no one needs to jump on the furniture and shout it from a rooftop. Chemistry's impossible to hide, as Eddie Cibrian and LeAnn Rimes discovered. They're still facing the fallout from the actor's divorce from ex-wife Brandi Glanville, but they seem willing to face it together, bonded by their unmistakable chemistry.

Look at Khloe Kardashian and Lamar Odom. While no one would call any Kardashian shy or reticent to talk about her love life, Khloe's never made a big deal about her relationship with Lamar. Despite a one-month courtship, their marriage has already lasted three years and seems to be strong despite the stress of his job and her reality TV appearances.

Body language is another sure indicator of chemistry or a lack thereof, and it was obvious for years that Tom Cruise and Katie Holmes were speaking entirely different tongues. Their gazes were usually in different directions, rarely toward one another. Pictures in which they held hands appeared to have all the passion of a couple of kindergarten kids who didn't much like one another being forced together for the buddy system. Even their kisses captured on film looked dutiful.

Compare their lukewarm interaction to the electricity that pervaded "Mr. and Mrs. Smith" when Angelina Jolie and Brad Pitt appeared together in the action flick. They weathered storms of controversy after their chemistry spilled over into real life, but it's still obvious from the way they look at one another on the red carpet: the inexorable force that pulled them together during filming that movie is still exerting its gravitational pull. Meanwhile, Tom and Katie appeared to travel in entirely separate orbits from early in their courtship.

When compared with celebrity couples who have genuine chemistry, the TomKat marriage looked doomed from the start. Perhaps the real surprise is that it lasted as long as it did.

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Originally posted here:
Celebrity Chemistry: How Tom and Katie Compare to Other Star Pairs

My family loves going to watch fireworks on the Fourth of July. Who doesnt? And our friends at ByteSize Science have a new video explaining how all those different colors are produced. (Did you know they put in extra stuff to make the boom?) The video features a demonstration by fireworks expert John A. Conkling, of Washington College in Maryland, who literally wrote the book on The Chemistry of Pyrotechnics. ByteSize Science is produced by the American Chemical Society.

Make a fireworks pinecone with chemistry. Image: Anne Helmenstine

If youre brave, you can get the same colorful effects in your own backyard campfire by adding common household chemicals like boric acid or Epsom salts to dried pinecones or rolled newspaper logs. Check out Anne Helmenstines directions and video at the About.com Chemistry blog.

Or if you prefer an explosion thats quieter (and colder), be sure to pick up some Fireworks Ice Cream for your holiday picnic. Which reminds me I better make sure we have some for our post-show treat!

Note: A version of this post was originally published on GeekDad in July 2010.

Go here to see the original:
The Chemistry of Fireworks

DUBLIN--(BUSINESS WIRE)--

Research and Markets (http://www.researchandmarkets.com/research/tzf55n/organic_chemistry) has announced the addition of John Wiley and Sons Ltd's new book "Organic Chemistry As a Second Language: Second Semester Topics, 3rd Edition" to their offering.

Readers continue to turn to Klein because it enables them to better understand fundamental principles, solve problems, and focus on what they need to know to succeed. The third edition explores the major principles in the field and explains why they are relevant. It is written in a way that clearly shows the patterns in organic chemistry so that readers can gain a deeper conceptual understanding of the material. Topics are presented clearly in an accessible writing style along with numerous of hands-on problem solving exercises.

Key Topics Covered:

CHAPTER 1 IR SPECTROSCOPY

CHAPTER 2 NMR SPECTROSCOPY

CHAPTER 3 ELECTROPHILIC AROMATIC SUBSTITUTION

CHAPTER 4 NUCLEOPHILIC AROMATIC SUBSTITUTION

CHAPTER 5 KETONES AND ALDEHYDES

CHAPTER 6 CARBOXYLIC ACID DERIVATIVES

Originally posted here:
Research and Markets: Organic Chemistry As a Second Language: Second Semester Topics, 3rd Edition Shows the Patterns ...

New Products

July 02, 2012 // Paul Buckley

Texas Instruments Incorporated has introduced the first in a family of multi-chemistry, multi-cell battery management gas gauge circuits with TI's proprietary Impedance Track capacity measurement technology.

The bq34z100 power management chip claims to be the first gas gauge in the industry to support a wide range of lithium-ion and lithium iron phosphate chemistries in 2- to 16-cell battery packs, extending battery run-time in applications like medical instruments, power tools, e-bikes and uninterruptible power supplies (UPS). TI also plans to introduce new gauges this year to support lead acid, nickel cadmium and nickel metal hydride chemistries.

Today's multi-cell lithium battery designs in portable industrial and medical equipment need a more accurate way to measure remaining battery capacity. The bq34z100 battery gauge leverages Impedance Track technology, which uses charge voltage measurements, battery characteristics and properties to determine a battery's state-of-health and maintain up to a 94-percent accurate capacity measurement for the entire life of the battery. The circuit also works independently of series-cell configuration, and can reduce power consumption through an external voltage translation circuit.

Availability and Pricing

The bq34z100 multi-chemistry fuel gauge for lithium-based batteries is available now in a 14-pin, 5-mm x 6-mm TSSOP package, priced at $2.10 in quantities of 1,000. TI's new bq34z110 battery gauge for lead acid batteries is planned for release in the third quarter. A new gauge for NiCd and NiMH is planned for announcement later in 2012.

More information about the bq34z100 multi-chemistry fuel gauge for lithium-based batteries at http://www.ti.com/bq34z100-pr

Read the original here:
Multi-cell, multi-chemistry battery gas gauge supports wide range lithium battery chemistries

July 2, 2012 - Available for use with FlowIR(TM) dedicated Fourier Transform Infrared Spectroscopy (FTIR) instrument, interchangeable FlowIR High Pressure (HP) Sensors come in DiComp and SiComp models that allow chemists working with high-pressure experiments to swap sensor types as needed to meet application requirements. Diamond and silicon sensors, which can be trusted under pressures up to 725 psi and temperatures up to 120C, cover full spectral region and are insensitive to bubbles. Original Press release Mettler-Toledo International Inc. Im Langacher Greifensee, , 8606 Switzerland Greifensee, Switzerland. - METTLER TOLEDO is pleased to announce the launch of its new FlowIRTM High Pressure (HP) Sensors for use with FlowIRTM. FlowIRTM is a small, dedicated Fourier Transform Infrared Spectroscopy (FTIR) instrument that offers real-time flow chemistry monitoring nearly anywhere within a continuous reactor setup. The addition of durable HP Sensors expand the use of flow chemistry by allowing users to gain the enhanced control of critical process parameters provided by FlowIRTM in high-pressure experiments. Benefits include faster experiment optimization, easier lab-to-plant scaling, reduced costs, and shorter time-to-market.

Interchangeable FlowIRTM HP Sensors, available in both DiComp and SiComp models, allow chemists working with high pressure experiments to quickly and easily swap sensor types to meet the needs of the current application. The new models can be trusted under pressures up to 50bar (725psi) and temperatures up to 120C.

FlowIRTM HP Sensors cover the full spectral region with swappable diamond and silicon sensors. Their insensitivity to bubbles makes them ideal for continuous hydrogenations, and the inclusion of a temperature variable flow head maintains reaction integrity.

No extra equipment or setup is required to use the new sensors. Users simply substitute the high-pressure version for the standard FlowIRTM sensor, gaining the same performance, optical window, chemical compatibility, and flow characteristics they enjoy with the standard sensor.

For more about FlowIRTM HP Sensors or to request a quote, please visit http://www.mt.com/flowir and select the "Accessories" tab.

Contact information

Patricia Hicks Mettler-Toledo AutoChem, Inc. +1-410-910-8486 patricia.hicks@mt.com

About METTLER TOLEDO

METTLER TOLEDO provides the enabling technology, software and people that can help build a seamless workflow to translate bench scale chemistry into a commercial process. For more than 20 years, our enabling tools and services have been a strategic resource providing critical information for thousands of development scientists and engineers. Companies have used that knowledge to accelerate the discovery, development and scale-up of new chemical processes spanning the chemical and biopharmaceutical industries. For more, visit http://www.mt.com.

BEI Sensors new Model 9960 Hall effect rotary position sensor is available in numerous standard configurations with fast, one week delivery for small quantities. Packaged in a highly sealed (IP67) housing and utilizing non-contacting Hall effect technology makes the 9960 an exceptionally rugged and reliable rotary motion control sensor.

Here is the original post:
High Pressure Sensors expand flow chemistry use.

ALOR SETAR: The Malaysian Chemistry Department is on par with chemistry laboratories in developed countries, said Science, Technology and Innovation Minister Datuk Seri Dr Maximus Johnity Ongkili.

This was proven when the department recently received the forensic service accreditation from the American Society of Crime Laboratory Directors/Laboratory Accreditation Board.

The accreditation proves that our laboratory service is on par with that of foreign countries, he said when met after visiting the Chemistry Departments Kedah branch in conjunction with its fifth anniversary here yesterday.

Ongkili said the Chemistry Department had been using new DNA techniques in animal and plant analysis, and analysis studies in forensic and microbiology.

He added that the department was also Asias reference laboratory for genetically modified organisms (GMO), halal analysis and forensic DNA analysis.

Ongkili said the department was now focusing on reducing the waiting period for its clients through better work management, adding that the waiting period for each case was between a day to a month.

The departments Kedah branch handled a total of 14,510 cases involving 31,902 samples. They also helped the police in certain cases especially those relating to drugs and controlled poisons.

Excerpt from:
M’sian lab has the right chemistry for success