Search Results - Chemical
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A chemical substance is a material with a specific chemical composition. [1]A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Some typical chemical substances are diamond, gold, salt (sodium chloride) and sugar (sucrose). Generally, chemical substances exist as a solid, liquid, or gas, and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another. Forms of energy, such as light and heat, are not considered to be matter, and thus they are not "substances" in this regard. Chemical substances (also sometimes referred to as a pure substance) are often defined as "any material with a definite chemical composition" in most introductory general chemistry textbooks.[2] According to this definition a chemical substance can either be a pure chemical element or a pure chemical compound. However, there are exceptions to this definition; a pure substance can also be defined as a form of matter that has both definite composition and distinct properties.[3] The chemical substance index published by CAS also includes several alloys of uncertain composition.[4] Non-stoichiometric compounds are a special case (in inorganic chemistry) that violates the law of constant composition, and for them, it is sometimes difficult to draw the line between a mixture and a compound, as in the case of palladium hydride. Broader definitions of chemicals or chemical substances can be found, for example "the term 'chemical substance' means any organic or inorganic substance of a particular molecular identity, including - (i) any combination of such substances occurring in whole or in part as a result of a chemical reaction or occurring in nature"[5]
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1. Stiffer Erections - The Best Herbs For a Rock Hard Erection Fast
November 07, 2009
Here we will look at how to get stiffer erections fast, with a great combination of herbs which you can find in all the best herbal sex pills which have been used for centuries, to get longer lasting and harder erections.
The key to stiffer erections is to get more blood into the penis and keep it flowing during sex; this is of course obvious but most men don't know the key to an erection is the chemical nitric oxide.
Most men think testosterone is the key to an erection but lack of nitric oxide secretion is by far the most common cause no erection can occur without it, so its abso... (read more)
Author: kelly price
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2. Provillus Side Effects Are More Of Myths And Rumors
November 06, 2009
Most of the men and women have already used Provillus, and are not much worried about Provillus side effects, as it is a herbal supplement for the treatment of hair loss and the number of people who are moving towards using this product is increasing from day to day. Many people use this product as an alternative for the expensive medical treatments that are chemical based and cost them a lot in terms of their physical health as well as a lot of money.
Most of the chemical products for the treatment of hair loss and hair re-growth can cause many side effects. They may lead to the symptoms... (read more)
Author: Azeem Ashraf
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3. Eminence of selecting the apt manufacturer for Industrial Pumps, Industrial Filtration Equipment an
November 06, 2009
When it comes to industrial pumps, chemical pumps, industrial filtration equipment, there are a galore of manufacturers and suppliers available to provide you with the latest devices available in the market.
There are many manufacturers who provide custom designed pumping solutions for any pumping requirement. But the most important aspect is how to choose or select the authentic and reliable manufacturer or supplier. The solution is to figure out about the details of its manufacturing and also find out the over all performance and kind of customers it has.
A good manufacturer of i... (read more)
Author: maria winslet
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4. Flexible Pool Coatings over Conventional Methods
November 05, 2009
Swimming pool coatings are of three types: acrylic, rubber based and epoxy coating. Epoxy coatings are durable. They are automatic chemical treatments and cool cleaners. They can resist ultra violet rays and are long lasting. Their life is for 7 to 10 years. The other type of coating is chlorinated rubber base. Their life is for 3 to 5 years. But this is cheap as compared to epoxy paint. And also, rubber base is less durable pool coating. It can be used easily. Wide range of colors is available in rubber based. The third one is acrylic coating. This paint is easy to apply, and easily cleans us... (read more)
Author: Francis Adam
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5. Hair Care Tips - Post Chemical Exposure Such As Straightening Or Perming!
November 06, 2009
Dry hair condition is a common occurrence post chemical exposure. If you have tried out straightening, coloring your locks, perming or ironing you will often see that your locks are dull and lifeless. While colouring may make your locks look shiny at the beginning of the chemical treatment but after a while it makes them look dull. Foiling, tinting, bleaching, blow drying or curling with hot iron may also result in similar condition. If you can't avoid blow drying your hair make sure you apply a good level of heat protection spray.
When you brush your locks make use of your brush from the... (read more)
Author: Vijay Koragappa Shetty
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6. Care Should Be Taken While Relaxing Curly Hair!
November 06, 2009
Firstly, evaluate the current texture of your hair follicle. Assess its porosity, elasticity and see if there is any damage of shafts or cuticles before considering it for a chemical exposure. It is not difficult to relax curly hair. It is difficult to maintain it. While applying the straightening cream avoid the scalp of your head. Leave half an inch from the scalp and then apply the cream. Start from half an inch from the scalp till the tip of your shaft. Prior to using relaxers, care should be taken not to wash with shampoo as the chemical in them will not allow the relaxing to happen. ... (read more)
Author: Vijay Koragappa Shetty
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7. Organic Insecticides And Other Options To Control Insects
November 06, 2009
If you have a home garden, you may be finding yourself in need of some way to control those insects. However, the reason you have a home garden is so that you can have organically grown vegetables for your dinner table. You do not want to call a pest control service or use harsh chemicals on your organic food. Instead of turning to these chemical options, try using an organic insecticide or other low to non toxic solutions.
Organic Insecticide Options
A water spray is a cheap organic insecticide. Instead of using any chemicals at all, sturdy plants can easily withstand a high pressu... (read more)
Author: Scott Ingram
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8. Improve your digital photography---some tips for you
November 06, 2009
The introduction of digital photography
Digital photography is a variety of photography that utilizes digital technique to develop shots of the topics you have selected. Digital photographs can be shown, printed, stored, manipulated, transmitted, and archived utilizing digital and computer technology, without chemical processing comparing to the old type of photographic processing.
How to begin your digital photography?
First and foremost, choose a camera. Frankly speaking, the digital camera with at least 4 mega-pixel resolution and a 3x optical zoom is recommended. Digi... (read more)
Author: lydia jim
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9. Chemotherapy And Its Main Definition
November 05, 2009
Chemotherapy is the use of chemical agents to treat or control diseases. It works by killing fast dividing cells like cancerous cells and other healthy cells which include hair follicles, bone marrow, reproductive system etc.
You would get anxious at the mention of chemotherapy for above reasons but there is not much cause for worry as healthy cells regenerate fast after the therapy is complete. Chemotherapy is either used exclusively or in combination with radiation or surgical therapies.
Advantages Unlike radiation, which kills cancer cells in the target area, chemotherapy is univ... (read more)
Author: Bennett Diaz
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10. A Guide To Paraben Free Lotions and Creams To Keep You and Your Skin Healthy
November 05, 2009
If you're looking for paraben free lotions and creams, you need to research well as the majority of skin care today will contain parabens as they are the mostly widely used preservatives. Even organic lotions present a risk, so here are the ingredients to look for and the ones to avoid.
Paraben free face care can help you to enjoy all the benefits of natural creams without any risk.
This chemical is commonly seen in skin care as methyl, propyl, ethyl and butyl and used mostly to preserve a products shelf-life, making more money for the manufacturer. Some studies suggest they are not ... (read more)
Author: Rachel Hammond
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11. How to Find Paraben Free Products To Safeguard Your Health
November 05, 2009
The rise in the use of harmful chemicals in skin care is quite alarming and you should try to ensure you use paraben free products whenever possible to keep you and your skin healthier.
What is paraben? Paraben is a chemical commonly seen in skin care as methyl, propyl, ethyl and butyl and used for the most part to preserve a products shelf-life, making more money for the manufacturer.
The main reason they are used is because they are effective and very cheap but recent research has thrown up some worrying contraindications.
Studies suggest that they could contribute to cancer a... (read more)
Author: Rachel Hammond
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12. How to Make Your Own Organic Insecticidal Soap and Keep Your Garden Chemical Free
November 05, 2009
Many home plant pest problems can be easily solved by using a little insecticidal soap. It is easy and inexpensive to mix up your own organic insect killer at home. You will be saving money on pesticides and won't have to worry about dangerous chemicals on your food.
This recipe works best on soft-bodied pests like aphids, thrips, white flies and spider mites. These are among the most common garden pests. Insecticidal soaps kill insects by entering the pest's respiratory system and breaking down internal cell membranes. It is only effective when it is wet, so aim well. After it is d... (read more)
Author: Laura Zinkan
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13. Industrial Electrical Supplies
November 05, 2009
Several branches of technology and engineering are available for industrial application. In automation, industrial architecture, industrial design, industrial process, industrial arts and industrial applicability, there will be a need for products to support continuing development and manufacturing of products and services.
Products of the industry may be identified among chemical industry, petroleum industry, automotive industry, meatpacking industry, hospitality industry, food industry, fish industry, software industry, paper industry, entertainment industry, semiconductor industry, cu... (read more)
Author: Larrie Kon's
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14. Inside View Of Abdomen By Ultrazvuk Abdomena
November 05, 2009
Human body is composed of many complex functions and a number of chemical reactions take place inside our bodies. There are many internal and external organs, which help us to live our lives, as we are living. It is very possible that you can get ill or sick. The reasons can be different, but there are a number of diseases, which can bring problems in your lives. If you are suffering from pain in your internal organs, then it is important for you to see your doctor, as soon as possible. Your doctor will examine you and will let you know about the exact problem. If you have complaints in your a... (read more)
Author: Azeem Ashraf
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15. Why Settle For The Best Wrinkle Reducing Cream?
November 05, 2009
Why settle for the best wrinkle reducing cream when you can actually “heal” wrinkles, with the technology available today? You can do that without resorting to painful injections or chemical peels. Those are not actually healing, anyway. The effects are strictly cosmetic. That’s why it’s called cosmetic surgery.
So, how do we heal wrinkles? In order to figure out how to heal wrinkles, researchers had to look at the major causes of them. The major causes of wrinkling include: Decreased production of elastic fibers, which causes the skin to sag Increased breakdown of hyaluronic acid, whi... (read more)
Author: Gordon Hall
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16. Easy Ways To Make Scented Candles
November 05, 2009
Scented candles add a certain amount of elegance to a room. The candlelight from any candle gives the room a romantic feeling. However, when a fragrance is added to the room through a scented candle, the elegance of the room grows.
You can use fragrance oil that is available at most craft stores or online for your scented candles. It is better to use oil rather then a water-bases or alcohol-based perfume in wax because most waxes are close to oil in their chemical composition. Water and oil do not mix. So, by using water-based perfumes, the liquid will simply float to the bottom of your m... (read more)
Author: Daniel Martin
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17. Common Thin Film Coatings
November 05, 2009
Thin film coatings play a prominent role on the manufacture of many electric devices. They are used to apply dopants and sealants to chips and other microelectronic parts. Physical Vapor Deposition (PVD) and Chemical Vapor Deposition (CVD) are two most common types of thin film coating methods. They are briefly discussed in this section. Physical Vapor Deposition (PVD) Coatings: PVD coatings involve atom-by-atom, molecule-by-molecule, or ion deposition of various materials on solid substrates in vacuum systems. Thermal evaporation uses the atomic cloud formed by the evaporation of th... (read more)
Author: Ryan Camomile
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18. Fundamentals for New Lawn Care Business Owners
November 05, 2009
A new lawn care business may start off with only a few clients, but over time, this number will most likely grow. The typical well-established lawn care business will have approximately 30 residential clients.
The three main services offered by lawn care companies include: 1. Mowing 2. Fertilizing 3. Chemical Treatment
However, the application of chemical treatment (herbicides et.al.) can be tricky for people new to the lawn industry. The chemical treatment industry is a regulated industry, and many regions will require the lawn professionals performing these activities t... (read more)
Author: Jem Mal
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19. What is the Best Thing For Firming and Sagging Skin - The Solution that Brings Back Youthful Skin
November 05, 2009
Have you ever wondered what is the best thing for firming and sagging skin that doesn't involve chemicals or surgery? If you're wondering if it's possible to skip having a facelift or applying chemical laced products to your skin -- good news, you're now able to!
You simply apply a natural skincare firming cream that contains cutting-edge ingredients to your sagging skin. The powerful natural substances go to work and bring back your young looking and healthy skin.
Of course, eating healthy, drinking plenty of water and exercising regularly are important. But, consistently using a h... (read more)
Author: Marcia Kruger
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20. Tips To Stop Chronic Pain Naturally
November 05, 2009
Tips To Stop Chronic Pain With a Natural ProductChronic pain can be a debilitating condition. It will rob you of the items that make life enjoyable. Many of these people that suffer with this condition have not been in a position to enjoy life for many years and will probably have problems for the remainder of their lives. But now, due to a recent breakthrough, some chronic pain sufferers may realize relief with a natural solution.Natural cures, versus chemical ones, have always interested me. If there is an alternative, I'd rather put a natural substance into my body vs artificial chemicals... (read more)
Author: thad melendez
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21. Causes and Solutions for Ever-Thinning Hair
November 04, 2009
Hair thinning is a big problem, especially among women as they frequently use hair products, most of which are chemical in nature. Quite often, they go in for hair-dos that require their hair to be heated, straightened or kept in certain positions for long intervals.
Besides the conventional external causes, here is an account of some other causes for thinning hair as well as their solutions.
Causes of Hair Thinning
Hair thinning, especially in women can occur due to temporary hormonal imbalances and other changes that may be caused due to pregnancy or some other disease. Other... (read more)
Author: jessica thomson
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22. Treat Depression
November 05, 2009
Depression is a disorder of mood which remains nearly incomprehensible to those who have not experienced it in its extreme mode, although "the blues" give many individuals a hint of the illness in its catastrophic form.
It is possible that some people may be suffering from depression because of chemical and hereditary imbalances in the brain. Whatever the reason is there are ways that these people can seek out treatment.
To treat depression an effective treatment plan must first find a way to relieve the symptoms; second return the patient to a state of mental health that allows the... (read more)
Author: Michael William
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23. Drug Abuse Health Information Causes, Symptoms and Diagnosis
November 05, 2009
Drugs are chemicals that tap into the brain's communication system and disrupt the way nerve cells normally send, receive, and process information. There are at least two ways that these are able to do this: (1) by imitating the brain's natural chemical messengers, and/or (2) by over stimulating the "reward circuit" of the brain. Some drugs, such as marijuana and heroin, have a similar structure to chemical messengers, called neurotransmitters, which are naturally produced by the brain. Because of this similarity, these are able to "fool" the brain's receptors and activate nerve cells to send... (read more)
Author: Prince charm
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24. Ohaus Analytical Balances
November 05, 2009
Ohaus analytical balances can be used for general lab and chemical applications, in teaching laboratories, and for environmental testing and university research. They help to get accurate results in quantitative chemical analysis. They reduce the hassle associated with determining the weight of a reagent. Such balances have been improved through the introduction of features such as those which enhance automation or precision. Ohaus analytical balances comprise different series – Adventurer Pro, Explorer Pro, Pioneer, and Voyager. Ohaus Adventurer Pro – These are very versatile balances which c... (read more)
Author: Jeremy Linder
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25. Water Pollution Control Needs To Be Every Person's Concern and Responsibility
November 05, 2009
Despite what the EPA and the water treatment facilities would like for you to think, water pollution control is virtually non-existent. They will tell you that they are keeping the water that enters your home safe for you to drink, but the truth is that they are simply waging a war against modern contaminants using antiquated equipment. The water they are sending you is simply not as pure as it should be.
Whether you know it or not, there are literally tens of thousands of chemical agents, and toxic metals in our reservoirs. Over 2,000 of these chemical agents have been identified as c... (read more)
Author: Elizabeth Ruby
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