Soap

Soap(Soap), high classFatty acidSaltIt is of naming generically, especially, it points to the fatty acid sodium or the thing of the fatty acid kalium. Industrial, the flora and faunaOil and fatThe empty it is made.Surface active agentBecause so it is, you can wash the soiling of the oil and the like. In addition,Bacterium cell membrane andVirusIn order to destroy the エン べ lobe, it is effective to protect the body from the pathogenic agent. In addition,Pure soapWhen (the じ ゅ it is the soap) with it calls, it is soap original manufacturing methodSaponification methodSo it produced,CarbonateIt points to the soap which is not included.

The occasion where the meat of the animal is roasted, the oil and fat which drips and falls the ash of the wood (alkali)SaponificationWhen it does, soaks in the earth and washes the hand with that earth when the soiling comes off, the air was attached, is called appearance.

Manufacturing method are 2 types of oil and fat saponification method and fatty acid neutralization method. As for oil and fat saponification method beef tallow and palm oil,Olive oilAnd so on natural oil and fatSodium hydroxideOf making useSaponificationDoing, including abundant table saltSalting outBeing able to point, it separates. Fatty acid neutralization method to make the fatty acid neutralize with alkali, because Tetsu it comes, there is no residual base, the soap which is easy to the skin and the mucous membrane you can obtain. In comparison with the sodium soap, dissolved can the potash soap make the liquid soap high. But at the Japanese bathroom being to dissolve, the sodium soap is suited as a soap for bath.

In Japan, the handmade soap and the like is made as a link such as environmental education. But, it is used in the raw materialsSodium hydroxideBecause of the deleterious substance, the person who has knowledge, after administering safe protection step, producing is desirable. But, because it means changing shape, to let flow the oil and fat to sewage, whether it makes environmental load small truly, it is opinion is divided.

Production experiment of soap

1. If the heat resistance glass container, it is possible, sodium hydroxide 12g is taken in the porcelain enamel container. Furthermore, the quantity of necessary sodium hydroxide differs depending upon the type of oil and fat of raw materials. When the quantity is small, the soap is not produced, when it is too multi, means that the sodium hydroxide of the deleterious substance remains in the soap after the completing. This quantity calculates it meaning that calculation method is written on the textbook of chemistry of high school.
2. Sodium hydroxide is melted. In this case, mass heat occurs. Be sure to do this operation, in the beaker. After becoming cold completely, it faces to the following step.
3. 100g you pour for food vegetable oil (rapeseed oil and the like).
4. About 20 minutes you stir. When it mixes, because feel changes, you know whether or not the reaction is advancing.
5. It pours in contents ones to the milk pack, about 14 days leaves.
6. 14 days later, inserting the saturation food brine of the semi- quantity, you stir and leave. If solid amount is separated, that is the soap.

pet bottle was weak in alkali, inserts this blend it leaves being to be times when it deteriorates we cannot recommend. After experiment you wash away the hand with the abundant water. Before washing, under any condition the eye does not have to be rubbed. In addition, stabilizing, until it reaches the point where it can produce, as for the soap after the completing you use in cleaning and the like, the one which is not used is better to the human body and the food and the like.

From the quantity which is needed (4 %) it views the quantity of sodium hydroxide, somewhat little to. This is in order to prevent the fact that the sodium hydroxide of the deleterious substance remains in the soap after the completing. With this experiment being to adopt salting out method, mixture of sodium hydroxide is rather little.

In the soap after the completing, as a by-productGlycerineIt continues to blend more or less, but this the quantity is included in also the soap of marketing somewhat. There is no either stimulus for the skin.

Type

Object

• Toilet soap

  For washing the face and in one for bathing and the like it is used. It is the potash soap whose solubility is large.

• Medicinal soap

  There is an effect of sterilization disinfection, is used in the toilet and the like. It is sold with the name, soap, butSynthetic detergentIt is one kind. The soap is the anion surface active agent, but as for the medicinal soap being to be cation boundary activityOpposite characteristic soapWith it is called. It mixes with the soap with electrically connecting, it causes the turbidity and there is no effect. In addition, the soap is weak alkalinity, but the medicinal soap is weak acidity.

• Laundry soap

  The bar soap for laundry is used in the toilet of the clothing. As for powder soap for laundryWater contaminationThe person where the consciousness for is high and,Synthetic detergentSo the detergency to which the person and the synthetic detergent which cause the dermatitis are too strong andFluorescentThe person et. al. who dislikes the fact that fading of the clothing advances and so on with the additive throwing to the washer in place of the synthetic detergent, you use. To use the soap, in comparison with the synthetic detergent because the selfishness is bad, like below the device is necessary.

  • The product whose water solubility is bad to be many, in addition when water temperature is low, because detergency decreases, be as high as possible you use at the water temperature.
    • There is many a thing which wastes electricity or the gas with this influence because,Environmental problemIf you are conscious is bathRemaining hot waterWe should utilize. In this case, washerLaundryMeasuring weight, water content there to be some which you adjust, to remain, when you pour the hot water, misconceiving, because there are times when the water overflows, note such that the washer where the function which remains and adopts the hot water is attached is chosen is necessary.
  • When it connects with the metal ion in the water, because detergency falls, the water which is used for washingIon exchange resinSo soft water it converts
  • After the washing because the soap refuse abnormal play ball it is easy, after the washing with the soapCitric acidAnd so on throwing the counteragent, it rinses

  In addition as for soap in raw materialsOlive oilIn order and to use natural oil and fat such as beef tallow, when all citizen changes to the soap, the food which becomes the raw materials soars,Developing countryThe theory that and so food shortage occurs, Malaysia etc. which is supply area of the vegetable fat and oil raw materialsTropical rain forestThere is a theory that under present conditions as for continuation of use of the synthetic detergent destruction advances, it assumes that it stops you do not obtain. Vis-a-vis this, if the oil and fat of the soap raw materials is being to use the beef tallow and the like which is made the industrial waste, the theory which we assume that it is not connected to raw materials soaring, and, as for existence of the synthetic detergent of the natural oil and fat raw materials that there is also the refutation which you say whether how you explain.

Form

• Bar soap
• Powder soap
• Liquid soap

Related item

• chemistry
• Salting out
• Saponification
• Oil and fat
• Soap ball
• Opposite characteristic soap
• Pure soap

External link

• Soap encyclopedia
• Soap ball soap

This item "Soap"There is a possibility of becoming reference of something to investigate, but stillItem of writing applyingIs.Revision and correctionAnd so on the cooperator doing is sought.