TNJ Chemical: October 2016

Friday, October 28, 2016

Buy PVP K30 K17 K15 K90 K25 at factory price from China TNJ Chemical

As a professional PVP (Polyvinylpyrrolidone) supplier, we have been in PVP industry for more than 15 years. Today we would like to talk about PVP-K molecular weight. This is a very simple question but many customers get confused when use it. PVP K molecular weight is very important in pharmaceutical comsetic and other application.

The molecular weight of PVP-K as follows (approx.)

PVP K15: 8,000

PVP K17: 10,000

PVP K25: 30,000
PVP K30: 50,000
PVP K60: 400,000
PVP K90: 1,000,000

PVP K120: 3,000,000

The K value of PVP is actually related to the relative viscosity of PVP aqueous solution, and the viscosity is related to the molecular weight of the polymer, so it can be used to characterize the average molecular weight of PVP by K value. The larger the value of K, the greater the viscosity, the stronger the adhesive property.

PVP is a synthetic water-soluble polymer compound, has the general properties of water soluble polymer, colloid protection, film, adhesion, wettability, solubility or aggregation, but the most characteristic is its excellent solubility and biocompatibility. In the synthesis of polymer like PVP is soluble in water, but soluble in most organic solvents, low toxicity, good physiological compatibility is rare, especially in medicine, food, cosmetics, which is closely related to people's health in the field. With the price of the raw material butyrolactone getting lower and lowder, PVP will show a good the prospect of its development.

We have wide range of PVP products, such as PVP K30,K15,K17,K25,K90, also we have comsmetic PVP K30, Pharma grade PVP K17 K15 etc. If you need to buy PVP K30 and K15 K17 K25 K60 K90 K120, please feel free to contact us sales@tnjchem.com

Buy Benzaldehyde from factory & suppliers at best price

Benzaldehyde is kind of organic compound. It is oen of the simplest, and the most commonly used aromatic aldehyde in chemical industry. At room temperature it exists a colorless liquid with a special smell of almonds. Benzaldehyde is the main component of bitter almond oil extract, also from apricot, cherry, laurel, extracted in peach. The compound is also in the nuts and nuts to and glucoside combined form (amygdalin, Amygdalin) etc.

What will happen to Benzaldehyde after long time storage?

Benzaldehyde will be oxidized, resulting in impurities benzoic acid.

Many aldehydes, such as acetaldehyde and Benzaldehyde in the air can be oxidized, which is called the self oxidation reaction (autoxidation). Ater a long time storage ,there appears white needle crystal at the bottle of the Benzaldehyde containers. It is benzoic acid.

The reaction formulation of the oxidation of Benzaldehyde by air is as follows:

2C6H5CHO+O2 - 2C6H5COOH

How to remove the Benzoic acid which exists in Benzaldehyde?

The commonly used method is to wash with saturated potassium carbonate solution. After washing, the benzoic acid can be removed.

Benzoic acid can also be removed by distillation, the boiling point of the Benzaldehyde is 178 degrees.

Benzaldehyde suppliers information in China

There are not so many Benzaldehyde suppliers and factories in China. TNJ Chemical is one of the key Benzaldehyde factory in China. Since from 2004, TNJ Chemical begun the supply of Benzaldehyde with high quality and reasonable price. If you interested in Benzaldehyde or want to buy Benzaldehyde, please contact sales@tnjchem.com

Buy Benzocaine at factory price- the roles of Benzocaine on human you should know

What is the role of benzocaine? Benzocaine is a local anesthetic, mainly for itching skin disease, wounds, hemorrhoids and ulcer pain etc.. The common benzocaine drugs in market include benzocaine ointment. Some antipyretic analgesics which also contain benzocaine ingredients.

Benzocaine is a local anesthetic, but it should not limited in medical treatment. Benzocaine started for medical analgesia, but medical experts found that it can expand the function of paralytic drug use, to extend the sexual time. The research and experiment, a small amount of benzocaine onto the man erect penis, greatly reduce the sensitivity and even paralysis, but will not affect the erection hardness, thereby prolonging the time.

It can prevent the sperm of male semen into into the female genitalia in order to avoid pregnancy; to a certain extent, it can prevent the spread of sexually transmitted diseases, through the exchange of body fluids (such as syphilis, gonorrhea, AIDS, etc.). The condom doesn't contain benzocaine. But in order to cater to the needs of people, currently on the market there are condoms containing benzocaine for sale. To those people with fear of benzocaine having side impact on human health, they can choose condoms not containing benzocaine.

Effects of benzocaine is not limited to prevent pain and itching, but also can improve the quality of sex. However, we have to know that benzocaine may lead to adverse reactions of methemoglobinemia etc.

TNJ Chemical (www.tnjchem.com) is top benzocaine factory and suppliers from China. If you need to buy benzocaine powder 20-40mesh, 50 mesh, 200mesh pharmaceutical grade, please feel free to contact sales@tnjchem.com

Thursday, October 20, 2016

Buy 2-Phenylacetamide,2-Phenylacetamide price,2-Phenylacetamide factory & suppliers

Maybe you are searching around to look for 2-Phenylacetamide (CAS 103-81-1) but it is really headache to identify which one is good or which supplier is real from China. Now we are pleased to take you to reach the truth.

2-Phenylacetamide is a pharmaceutical intermediate which exists in white crystalline flaky powder with a characteristic odor. It is mainly used as intermediate for medicine, pesticide and spices. It eaisly absorb moisture.

In China, there is few factory willing to produce 2-Phenylacetamide regularly because of this is a new product in market and it still needs time for customers to accept it. But good news is that now market consumption for 2-Phenylacetamide is increasing year by year. Now TNJ Chemical is the largest 2-Phenylacetamide supplier in China. We export high quality 2-Phenylacetamide to Europe, South America etc and received good comments.

If you want to buy 2-Phenylacetamide, please don't hesitate to contact us sales@tnjchem.com

Related Reading buy 2-Phenylacetamide CAS 103-81-1 Price of 2-Phenylacetamide

Buy Boric acid flakes 3-5mm,Boric acid flakes price & suppliers

Buy Boric acid flakes from factory & suppliers directly at best price

October 7,2016.

What kind of Boric acid flakes we sell?

TNJ Chemical is the only and earliest developer of Boric acid flakes in China. We sell two kinds: Boric acid flakes 1-3mm & Boric acid flakes 3-5mm. It appears in white shinny scales flakes.

Where we sell Currently?

Boric acid flakes is packed in standard 25kg/fiber drum or bags. But for sample we can deliver 1kg/bag. Our Boric acid flakes is very popular in many countries including Germany, UK, Canada, America etc.

How you can make order with us?

If you need high quality Boric acid flakes, you can contact us by email sales@tnjchem.com We will answer your questions within 8 hours (workding day). The delivery can be made immediately after order confirmed because we have full stock.

Look forward to having good cooperation with you!

Tuesday, October 11, 2016

Buy Sodium borohydride powder granule from China suppliers & factory at best price

The knowledge to Sodium Borohydride
Sodium Borohydride is well known for its strong reducing power which can be widely used in many industries such as metal processing, paper bleaching, medicine, and water treatment etc. Just because of its reductant effect, it can be used to remove heavy metals, reducing color, reducing smell, oxidizing, reducing tail gas, and other kinds of pollution control. So it is really good chemicals in chemical industry and pharmaceuticals etc.

What is the Appearance of Sodium borohydride?
Generally speaking, Sodium borohydride exists in powder, granule & 12% solution at market for sale. All three work as reducing agent but just difference form. But in price, granule is often regarded as much higher price than powder. Sodium borohydride 12% solution is just solution of sodium borohydride which accounts for 12% in weight. For 12% solution, the most important to be used as reducing agent is pH value which should be higher than 10.

The chemical reaction of Sodium Borohydride
Sodium borohydride can not be put close or together with water (moisture). It is of high moisture absorbing ability. It reacts with water and has violent reaction, maybe explosive. It also reacts with oxidizing materials and has same effect as with water.

Sodium borohydride packing & transportation
Because of its dangerous characters, Sodium borohydride is often packed in painted iron drums and tightly sealed. Inside, often use foil bags to pack the materials to avoid moisture-absorbing and leakage etc. Especially for exportation, packing is strictly controlled by government. In transportation, Sodium borohydride can not be put together with other materials in one container as shipping regulation requires. So no matter how many kilograms Sodium borohydride to be shipped, always full container is required to load.

Sodium borohydride supplying status in China
In recent years, China has tough regulation on pollution control. This results in the close of many chemical products especially heavy risk chemicals. Meanwhile, after 2015 Tianjin explosion, dangerous chemicals are under strict control by government. So there is few sodium borohydride suppliers in China. Now for overseas exporting, Hefei TNJ Chemical (www.tnjchem.com) is the rich experienced in exporting Sodium borohydride to Europe, Korea, America, Southeast Asia etc. Now it exports Sodium borohydride about 200 metric tons per year. Meanwhile, some dealers in China also share the cake of overseas market.

* Reference information
TNJ Chemical is one of the key high quality Sodium borohydride suppliers and manufacturers from China. It started the supply of NaBH4 since 2006 and has rich experience in handing Sodium borohydride. If you need to know more or want to buy Sodium borohydride, please contact sales@tnjchem.com

Related reading: Sodium borohydride powder Sodium borohydride granule Sodium borohydride 12% solution Sodium borohydride price

Buy Propylene glycol USP from China Suppliers & Manufacturers at best price

Brief Description of Propylene glycol
Propylene glycol, also called propane-1,2-diol, is an organic compound with the chemical formula C3H8O2. It is a viscous colorless liquid which is nearly odorless but possesses a faintly sweet taste. Chemically it is classed as a diol and is miscible with a broad range of solvents, including water, acetone, and chloroform.. The CAS registry number is 57-55-6. Typical names are propylene glycol (PG) and monopropylene glycol (MPG). The propylene glycol can be manufactured in different grades. The most controlled grade is called propylene glycol-USP/EP and is manufactured and distributed according to high quality standards. The normal PG grade is called industrial grade. Both grades may be marketed under different trade names.

Propylene glycol USP/EP pharmaceutical grade & Industrial grade
Propylene glycol USP/EP (pharmaceutical grade) has a very high purity (i.e. absence of impurities) of more than 99,5% – which is extremely high for a chemical. Most important, though, is respecting hygiene regulations and Good Manufacturing Practice standards in the production, transport and further processing of propylene glycol.

In fact, the quality and purity of both industrial propylene glycol and propylene glycol USP/EP (pharmaceutical grade) is very high. In addition, for propylene glycol USP/EP intended for use in pharmaceutical applications, utmost care is placed on fulfilling the specific strict rules for the production, transport and hygiene of propylene glycol USP/EP to be used in sensitive applications like in food or cosmetics. TNJ Chemical does not support the use of industrial propylene glycol for use in pharma, food, animal feed and cosmetic/personal care applications.

Propylene glycol application in food, cosmetics, animal and others.
Propylene glycol is used in a large variety of daily products, such as in cosmetics and toiletries, food, animal feed, and pharmaceuticals, as well as in a number of industrial applications.

Propylene glycol USP/EP (pharmaceutical grade) has been safely used for decades in a large variety of consumer products, including more than 4000 cosmetics and toiletry products. Over this long period of time and large of variety of products there has been no evidence of such effects.

Propylene glycol is an approved feed material. However, whilst it is safe for use in cattle, dogs and poultry it shall not be used in cat feed. When fed with propylene glycol containing feed, cats show an increase in Heinz body formation, which are deformities of erythrocytes and shorten the life time of the red blood cells. This is unique to cats.

Propylene glycol use in electronic cigarettes.
TNJ Chemical doesn not suggest the use of propylene glycol in electronic cigarettes, nor in artificial (theatrical) fogs due to possible effects on the eye, nose, throat, and respiratory tract membranes as well as the absence of information on potential long term effects from prolonged inhalation of (fine) droplets of propylene glycol.

Hefei TNJ Chemical Industry Co.,Ltd. is professional Propylene glycol USP grade manufacturer and supplier from China for more than 15 year. If you want to buy Propylene glycol USP grade, please feel free to contact sales@tnjchem.com

Related reading: Propylene glycol USP, Propylene glycol factory