Category Archives: Chemistry

Teaching College Chemistry in the Internet Age

It has been 10 years since I was an Asst. Prof. of Chemistry.  My jump to the dark side (business) has largely disconnected me from the latest trends in chemical education. Much has changed in regard to information technology.  Students now show up in class with laptop computers and cell phones. They didn’t 10 years ago.

I do have a question in regard to the Internet and how it may add or subtract from use of the literature.   Are students referencing web sites in lab writeups or papers? How does that work? Just what kind of legitimacy does the internet enjoy today as a “reference”?  How has the internet affected how we archive information? 

And just how do you handle the matter of students and their cell phones?  Calls and text messaging could be pretty disruptive to the classroom.

Katzenklavier

There are many amazing but obscure characters in history. One of them is the German Jesuit scholar Athanasius Kircher (1601-1680). Wikipedia has a nice writeup on this guy.  Kircher was one of these intellectually insatiable fellows whose curiosity knew few boundaries.  While chemistry or alchemy was not a mania of his, he did publish works on geology, Egyptology, and music theory. Among many other acomplishments, he was an early proponent of hygienic practices to prevent the spread of infectious disease.

Curiously, Kirchner set forth what must have been an improved version of the Katzenklavier, or a Cat Piano.  This lamentable instrument was described as early as 1549.  Thankfully, he doesn’t appear to have actually built a working model. The cat piano was an apparatus wherein an “octave of cats” were selected by the timbre of their meow. They were thus arranged in a mechanical contrivance that would hammer or pull their tails to elicit a painful, though harmonious, yowl when the “artist” pressed a key. 

Kids, don’t try this at home.  It is an oddment that should remain in the remote past.  Though I am a cat fancier and the thing is obviously cruel, I can’t help but snicker a little at the thought of it. It is just so … Monty Python.

Hu- The Human Element

We’ve all seen the ad on television with it’s folksy music and mosaic of compelling images while the voice-over waxes philosophic about the “Human Element”. It is a very well done piece of public relations art.  The theme is that the practice of chemistry is ultimately about serving people.  I’m inclined to agree, though the ad does gloss over the imbalance between service to the stakeholders and the shareholders.  But that is the general state of affairs with the whole of the corporate world.  We’re all stakeholders, but only a few are actual shareholders.

Few people outside our field associate chemistry with the term “high technology”.  That is commonly reserved for medicine, electronics, and aerospace.  Just look at any news outlet or magazine. If it ain’t happenin’ in space or in the hospital or it doesn’t involve TV or cell phones, it is too boring for words. 

But in fact, chemistry deserves to be in that elite group as well.  We chemists know that the ballyhoo about advances in medicine typically resolve to advances in the chemical sciences.  It’s the same for electronics and even aerospace because they rely heavily on the material sciences. OK, so our chosen field is not the object of admiration. We’re probably better off for it.

It is an understatement to say that the human element is important.  My observation is that resolving issues with the other elements is almost always easier than issues relating to this one element- Hu.  Using it to titrate buy-in, cooperation, or just help often requires the most subtle interactions and the results can be spectacularly non-linear. 

Sometimes Hu is refractory, other times it is pyrophoric.  It can be most agreeable, or not.  I still do not understand it very well.  But I’ll keep trying. 

Chemical Business Development People

Any chemical manufacturing business has a sales group.  Sales people will sell existing products, that is, products for which the manufacturing facility already has a process.  It is relatively straightforward to sell existing products.

If your company is so disposed, the sales group might also market its ability to take on new projects.  To sell this kind of capability you need a special kind of sales person.  Many companies call such sales people “Business Development” managers. Such people almost always have a strong technical background and a desire to interact with customers. 

A business development manager is a special kind of animal.  In addition to their technical ability they must have a wide range of general business skills.  Such a person must have a thorough grasp of all phases of manufacturing- R&D, pilot plant, semi-works, and production.  This intimate understanding of manufacturing is not limited to just the technical aspects of making a proposed material to specifications.  There is raw material sourcing to be done as well as the generation of an economic model of the proposed process.  And, before you can even offer a product you have to do your due diligence in the intellectual property arena. 

The business development person must somehow mesh the customers price and delivery requirements with the company production timeline. For the development of a new product,  a company needs a process that operates at scale.  To get a scaled-up process, it has to have a process validated at the pilot plant scale.  To get a pilot scale process, the company needs its process bench chemists to pony up a process that is cost efficient and safe. 

The practice of business development will involve math.  Costing and pricing are two economic activities that will put you in contact with accounting and with upper management.  This is where the job can become highly stressful.  Your company will probably have costing numbers that are reasonably accurate.  I say probably because there is some philosophy involved. 

Your accountants will use GAAP- Generally Accepted Accounting Principles.  I’m not an accountant and I have no aspirations to be one.  All I can say is that the allocation of costs to a given product, at least in a multipurpose facility, will involve some assumptions about how to partition resource costs to any given process.  The previous sentence can be the source of incredible confusion for companies.  The method by which costs are allocated can lead to numbers that are unrealistic on either the high or low side.  Overly low numbers can lead to pricing that is too low to sustain the operation.  Overly high numbers can lead you to offer quotations that are not competitive. Both circumstances are not desirable.

A business development person must be intimately familiar with all phases of manufacture.  Fundamentally, business development people are show horses.  They represent their company on site and at meetings and conferences off-site.  A business development person must have excellent communication skills, be an effective public speaker, and be in command of details in diverse fields.  And, it really helps if you have some savoir-faire.   Personal skills like the ability to listen, to carefully drill into customers and competitors for specific details without being rude or creepy.  It helps to be able to dress well, understand decorum, and display good manners.  It is better to be sincere and risk being taken advantage of on occasion than be cagey and deceptive. This kind of thing does really matter. 

Many chemists out there who have yet to hatch from the academic and post-doc world may not have heard of this job description. Other manufacturing arenas may use engineers in this capacity. In the chemical manufacturing field, chemists can step into this type of activity and be in the center of the activity and at the edge of technology all at once. Having done it, I can only encourage fellow chemists to consider it as a career path. 

Colloidal Porcine Lipids with Capsaicin-Lambda Max 550 nm

As a gastronaut, I have been in pursuit of the perfect chili verde for quite some time.  Fundamentally, chili verde is a type of gravy: a dispersion of lipid phase (preferably pork lipids), a dispersant (starches), an aqueous phase, phytochemicals (capsaicin, cumin extracts, etc), pork, and assorted plant tissues.  It is called green chili mostly because it is not red.  That is, it lacks red chili’s.  It is more or less green by default owing to the minor jalapeno or other chili components. 

Chili verde can be consumed as a soup with or without tortillas. It is also a wonderful sauce to drown a burrito or other variations of foods wrapped in tortillas.  When used as a sauce the rheology is quite inportant.  The chili verde must flow readily, but it must also coat the burrito or enchilada in a fashion so as to form a layer substantial enough to impart flavor and release enough heat to melt any cheese that might be applied. 

I’m an experimental gastronomer, not a theorist.  Much can be said about what constitutes authentic Mexican food.  I happen to prefer what tastes best, not what is stringently authentic.  When we use the word “authentic”, what do we really mean anyway?   Mexican food is now a kind of gastronomic diaspora- it has been dispersed in all directions (well, except for Europe) and is evolving.

Here is the latest revision– To a large stock pot is added 454 g of pork sausage or diced pork.  As the pork is browning, one half of a medium onion is diced and added to the browning meat.  Several cloves of minced garlic are added to the mix.  After the meat is browned, 6 cups of water is added and the mixture is heated to a gentle boil.  To the vessel is added 1 tsp of NaCl (or to taste), 1 finely diced jalapeno pepper, 1/3 cup diced Anaheim pepper, 1 tablespoon of cumin, 1 teaspoon of ground chili pepper, 1/4 cup corn meal, and one finely diced tomatillo.  The mixture is allowed to simmer for 30 minutes.  To a cup with 1/4 cup of warm water is added 2 tablespoons of corn or arrow root starch and the solids vigorously dispersed in the water (no lumps).  The starch slurry is added to the pot and the resulting mixture is simmered at low heat for 10 minutes to afford a mixture that should have the consistency of a gravy. Beware-  it is possible to overheat the composition and wreck the dispersion. 

Comment on the above lot:  Pretty good, I’d give it a 9 out of 10. Perhaps a bit more cumin.  Actually, a fresh salsa with cilantro & jalapeno would do the job on a burrito.

In a later post I will discuss fabrication techniques related to the burrito. For now, bon appetit!

Isotope Mojo Blues

Near as I can tell, there is some kind of demand in the marketplace for all of the elements from 1 through 92, with the exceptions of Pm, At, and Rn, I suppose. It is hard to gauge the trade in actinides since precious little gets outside the realm of government regulatory frameworks. Clearly there is demand for certain isotopes of Th, U, and Pu.  But the nuclear regulatory people keep a tight reign on that stuff.

I remember a pottery class I took some years back in a nearby town. I was snooping through the pottery stockroom looking for glazes and what did I find? I found a sizeable quantity of Thorium nitrate.  These hapless middle-aged, post-hippy era, meadow muffin starving artisans running the co-op clearly had no idea that they had an actinide a nuclear-age artifact in their midst. Obviously, it had been secured for colored glaze applications.  I warned them about it but was met with the cow-in-the-headlights-look. I call it the “bovine stare”.  So, I brought a GM survey meter the next week and opened up the jar with a few of them standing there. As the clicks ramped up from the beta’s and as I switched the attenuation to keep the needle on scale, I thought I heard the unmistakeable faint slapping sound of multiple sphincters slamming shut.

The first question was “Would I like to have it?”.  Pppffffttttt!  “Hell no!” says I.  Nuclear cooties. Jesus H. Crimony!!  I did a careful survey with the GM counter and found that the surrounding area was clean. The material (early 1960’s vintage by the looks of the label) had hardly been used, so I was confident that contamination was not too bad, if indeed there was any. There may have been alpha emitters but this counter wouldn’t pick them up.  I gave some names of hazardous waste vendors and a stern warning not to drop it or spill it.  That’s the last I heard of it.

I remember a seminar in grad school when a visiting rock star from ETH gave an organic seminar detailing the use of Li-6 in NMR studies.  The fellow lamented in his fastidious German/Swiss accent that it was difficult to get Li-6.  He also said that for a time much of the refined Lithium in the market place was depleted of Li-6.  It would be interesting to hear someone comment on the accuracy of this. 

Bloggenvolk- ACS Chicago Meeting Minus Gaussling

Sadly, regrettably, and with heavy heart Th’ Gaussling must disclose that he was asked to cancel his trip to the ACS meeting in Chicago. The clarion call of duty has sounded for all hands on deck.  Mister midshipman Gaussling will take heed and report to battle stations.  Ours is not to wonder why.

It is probably a good thing. I always spend way too much money on books at these meetings anyway.   There is always the Gordon Conference ….

Perhaps other bloggenvolk can meet in Chicago.  I think it is important for people to socialize.

Cash is King

It is tough being a small company or start-up.  You have perpetual cash flow concerns and maintaining a big enough plug of working capital is always difficult. Add to this the fact that larger companies tend not to take you seriously on either the buy or sell side. 

Selling to a company that is much larger is often challenging.  They are often skeptical of your ability to deliver; they want to throw their weight around by dumping outrageous terms and conditions on the table; and they may want you to “invest in the relationship” with freebies like holding inventory, unpaid R&D, free R&D samples, or a dozen other things. 

One of the common purchasing tricks is to ask for wide range of volume pricing. That is, ask for the pricing of 1, 10, 100, and 1000 kg of a product.  What they will do is to look at the largest volume price as a sort of floor or asymptote price and then begin to ask for lower quantities at that price.  They know that you can offer the material at the low unit price one way or another, so why not ask for smaller quantities there as well?  This can be a very effective leverage when negotiating price with a vendor, that is, the knowledge of their fall-back pricing. 

As the manufacturer you are well aware that the economy of scale only works if you actually manufacture at scale.  Many manufacturers of specialty chemicals may not actually keep certain products in inventory. If their sales history is spotty or if it is relatively obscure, there is no way to predict demand.  So, dumping capital into finished goods that sell poorly is a bad decision most of the time.  When you do not carry a product in inventory, that is, you only make it on demand, your hands are tied in price negotiations.  You just can’t rationally offer 10 kg at 1000 kg pricing.

Another difficulty is invoicing.  It is almost always the case that the vendor will have to pay for raw material in advance, hopefully with commercial credit terms like 30 days net.  And no matter what, payroll has to be met.  So the manufacturer has to commit resources up front for a given sale. Only when the product goes on the truck can the vendor issue an invoice.  This is all reasonable and expected.

It is possible to go to your banker with a purchase order in hand and apply for a short term loan to fund the manufacturing costs.  It is important to get to know your banker well. If they have confidence in you they can help you out during tough times.

Typically, payment is due 30 days after the product ships.  Some companies will insist on starting the clock when the shipment arrives. For shipments in the states, this isn’t such a problem. But for shipments involving boats it can present cash flow problems given the month-long transit time.  Incidentally, companies that use the SAP accounting system will have requirements that will be as fixed and unchangeable as the very ground you stand on. 

It will usually transpire that the manufacturer will have to pay for raw materials and payroll well in advance of payment.  This is normal.  One of the ways you get into trouble is when raw mats show up too early or too late. Raw mats that show up too early will require payment sooner and raw mats that show up too late will delay manufacture.  Timing is important. 

Another kind of financial trouble you can encounter is from late payment or even nonpayment from a customer. Late payment gives rise to all kinds of trouble for any company, but especially for small, capital-deficient companies.  Receivables accountants maintain an aging chart for invoices.  After 30 days, the receivables person will begin to get nervous and get on the phone to roust the customer for payment. After 60 days, people are getting jumpy about payment and after 90 days there may be calls to the customers president or controller. 

When a company has a cash flow problem, they will direct whatever cash they have into their most critical expenses in order to keep the place running.  Your invoice may not be at the top of the list.  When you encounter this problem with a customer, it is important to keep your cool and try to get whatever they can afford to send. Chances are good that they are already twittered about it so threats and heavy handedness may be a waste of time.  But often it is the squeaky wheel that gets the grease (or lucre) in these circumstances. So it is always worth talking to the customer about payment.

This whole business of pricing, invoicing, and getting paid is deadly serious and the inability to do it well will shut a company down quickly.  We technical people often discount the accounting end of our business, perhaps believing that it is the domain of lesser skilled persons.  Successful companies, however, know that a good accounting group and clear policies are crucial for stable operation.

Start-up companies, however, may not pour resources into accounting systems as generously as they should.  Often, it is the founders who do the accounting themselves in the early days.  Eventually, the founders realize that they need book keepers and accountants to manage all of the cash flow issues.

Purchasing- The Dark Side of Business

All sales people have to deal with purchasing people in some way or other.  In the B2B chemical business, where you never really meet the ultimate end user, sales people can be found to populate two levels.  Non-technical and technical.  Non-technical sales people are, in my experience, relatively scarce in the chemical field.  Yes, you do find people with degrees in business doing chemical sales, but without any technical savvy they are at a distinct disadvantage.  Most of the people in chemical sales tend to be technical types of one stripe or another- engineers, technicians, or chemists.

What has always struck me about business is the dramatic differences in culture and operating policies between companies in a given market.  Some companies make it nearly impossible for sales people to contact employees and other companies seem indifferent.  I have noticed that pharma companies are particularly stringent about employees meeting with sales people.  Of course, this may just be an artifact of my sampling experience.

There is a reason, of course, for a company to make it difficult for sales people to contact its staff.  They want their purchasing “professionals” to be present and/or in control during such encounters.  This is not unreasonable.  Some large pharma houses for instance have contracted other companies to do their purchasing for them.  This being the case, uncontained or off-line purchasing may be redundant, uneconomical, or a breach of contract. 

But the other reason for discouraging staff from meeting with sales people is this- purchasing people are skilled in the art of procurement.  They are familiar with company policies regarding suppliers and negotiation.  And, not insignificantly, they tend to be a bit more refractory to the enchanting ways of sales folk. 

A well run purchasing department is a type of profit center.  Not only are they required to get the cheapest and most stable supplier, but they are also tasked with extracting other concessions as well. Other concessions may include custom shipping & packaging details; custom specifications; an agreement to maintain inventory; special price/volume arrangements; or long term pricing agreements. A good purchasing manager is worth their weight in gold.  Over their career a good procurement staff can save a company vast sums of money and secure strateginc reserves of raw materials for competitive advantage. 

I joke about purchasing as the “dark side” because a good purchasing person can be a really tough sell.  They make sales people work hard for their money but in the end everyone is better off because it makes businesses more resilient and competitive.  They raise the bar and, painful as it may be, in the end we all benefit from excellence in business.

Bloggenvolk Chicago ACS Meeting

A group photo at the Chicago ACS meeting.  That would be fun and blessedly easy.  If bloggenvolk want to linger and talk, they could do that. (If you haven’t been to the Art Institute, I heartily advise a visit.)  It’ll be Chicago in March, so that means outdoors may be nasty.  We just need someone to shoot the photo and post it somewhere on the web. 

What about monday noon, at the convention center, in the entrance near that rotating product literature carosel they always have? Any takers?? C’mon.  Be a sport! I’ll be wearing a badge that says “Gaussling”.