Stearic Acid 1838

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Product Description:

                   Stearic acid

Formula: C18H36O2

Structural Formula:CH3(CH2)16COOH

Product Description:

Shaped like Lump, flake; Saturated fatty acid mainly with C16 and C18, white flake solid at ambient temperature, not dissolved in water, slightly dissolved in benzene and carbon bisulfide, and easily dissolved in hot alcohol. No smell no poison. It has the general chemical properties of organic carboxylic acid.

Physicochemical Properties:

pure product is white with a shiny soft small pieces, melting point 69.6 degrees, the boiling point of 376.1 degrees. Relative density 0.9408, refractive index 1.4299, slowly volatile in the 90-100 degrees. Slightly soluble in cold water, soluble in alcohol, acetone, soluble in benzene, chloroform, ethyl ether, carbon tetrachloride, carbon disulfide, toluene and so on.

Specification:

Item

Index

Grade No.

1842

1838

1820

1860

1870

1880

Iodine value gI2/100g ≤

5.0

5.0

5.0

6.0

7.0

8.0

Saponification value mgKOH/g

206~211

206-213

214-216

193-220

193-220

192-218

Acid value mgKOH/g

208~210

210~211.5

214-225

182-218

192-218

193-220

Chroma (Hazen) ≤

60

80

100

200-400

150

400

Freezing point °C

54~57

54~57

55~57

54

52

52

Moisture %

0.2

0.2

0.2

0.3

0.3

0.3

Inorganic acid %

0.001

0.001

0.001

0.001

0.001

0.001

Suggest Uses:

Mainly for the production of stearic acid salts: Widely used system for cosmetics, plastic cold-resistant plasticizer, release agent, stabilizer, surfactants, rubber vulcanization accelerator, waterproof agent, polishing agent, metal soap, metal mineral flotation agent, softeners, pharmaceuticals, and other organic chemicals.
In addition, oil-soluble pigments can be used as solvents, crayons transfer slip agent, waxed paper lighting agent, stearic acid glyceride emulsifier, etc..

Packing :25/50kg in PP bag ,25MT/20GP

Product Storage:

in dry warehouse ventilation should be more than 10mm from the ground to avoid damp  products in the above-mentioned conditions, from the date of delivery for one year shelf life.


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Q:Alcohols and carboxylic acids in the hydroxyl group, the oxygen atoms are sp3 hybrid or sp2 hybrid
Are sp3 hybrid.
Q:Which acid is strong for carboxylic acid and carbonic acid?
carboxylic acid
Q:What is the position of Fischer-Tropsch synthetic hydrocarbons in Nazi Germany's military industry?
The traditional FT synthesis method of the product of heavy hydrocarbon content is high, the composition is complex, so the combustion efficiency is not optimistic. Germany is in view of the supply of oil is less than consumption (loss of production areas and lack of refined production capacity) was forced to take the FT technology to add (Germany's local coal reserves larger). So the FT fuel in the World War II Germany's energy system accounted for little, the specific data is still controversial, there are 15% and 25% said.
Q:The role of aromatic hydrocarbons
Two cases: First, the name of monocyclic aromatic hydrocarbons, usually benzene ring for the mother, alkyl as a substituent. Second, the structure is more complex aromatic hydrocarbons, usually based on the hydrocarbon base, benzene ring as a substituent. Xylene, 2-methyl-3-phenylpentane, diphenylmethane, etc. For the naming of multifunctional compounds, attention is given to the priority order of the functional groups. The priority is preceded by the parent, usually: cations, COOH SO2H, COOR, COCl, CONH2, CN, CHO, CO, OH, SH, NH2, alkynes, alkenes, ethers, X, NO2, etc. [2]
Q:Why artemisinin and its derivatives in the molecular structure of a peroxide chain, the chemical properties are more stable?
Artemisinin is relatively stable, is relative to other organic peroxide in terms of, in general, most of the organic peroxide instability, heating easily decomposed, and some even easy to burn the explosion, such as dibenzoyl peroxide, but crystal cyan Artemisinin heating to the melting point does not break down, has been considered stable.
Q:Are the asphalt and peat kinds of vegetables have heavy metal?
Asphalt and its flue gas on the skin and mucous membranes are irritating, phototoxic and carcinogenic effects. China's three major asphalt toxicity: coal tar pitch> shale asphalt> petroleum asphalt, the former two are carcinogenic. Asphalt main skin lesions are: phototoxic dermatitis, skin lesions limited to the face, neck and other exposed parts; black disease, skin lesions are often symmetrical distribution in the exposed parts, was flaky, brown - dark brown - brown black; Acne; verrucous vegetation and heat burns caused by accidents. In addition, there are dizziness, head swelling, headache, chest tightness, fatigue, nausea, loss of appetite and other systemic symptoms and eye, nose, throat irritation symptoms.
Q:Carboxylic acid and ester can form isomers. What are the conditions?
The general formula for the carboxylic acid is RCOOH, and the general formula for the carboxylic acid ester is R? COOR? (R? May be a hydrogen atom). If the total number of carbon atoms in the R group in the carboxylic acid is the same as the total number of carbon atoms of the two R groups (R + R₂) in the carboxylic acid ester and the total number of R atoms in the carboxylic acid is higher than that of the carboxyl groups R & lt; 1 & gt; R & lt; 2 & gt;), both of which constitute isomers, such as acetic acid and methyl formate, butyric acid and ethyl acetate, phenylacetic acid and methyl benzoate are all isomers.
Q:What are the sugars?
Carbohydrate carbohydrates, also known as carbohydrates, are the most widely distributed and most important organic compounds in the world. Glucose, sucrose, starch and cellulose are all carbohydrates. X0d carbohydrates are all organisms The main source of energy needed to sustain life activities is not only nutritious but also has special physiological activity, such as: heparin in the liver has anticoagulant effect; blood sugar in the blood type related to immune activity.In addition, the nucleic acid The carbohydrate compounds are more important for medicine, and the carbohydrate compounds are composed of three elements, C, H and O, And O is usually 2: 1, and the proportion of water molecules, which can be expressed by the general formula Cm (H2o) n.Therefore, these compounds have been called carbohydrates, but later found that some compounds according to their structure and (C6H12O5), deoxyribose (C5H10O4), etc .; and some compounds such as acetic acid (C2H4O2), lactic acid (C3H6O3), and other compounds, such as acetic acid (C2H4O2), lactic acid (C3H6O3) And its composition is consistent with the general formula Cm (H2o) n, but the structure and properties are completely different with the carbohydrate compounds, so the name of the carbohydrate is not exact, but for a long time, so far still in use. X0d from Chemical structures, carbohydrates are polyhydroxyaldehydes, polyhydroxy ketones, and their condensates.
Q:Is carbon monoxide an organic gas?
The organic compound contains carbon, hydrogen, oxygen, nitrogen and other elements, a few also contain sulfur, phosphorus, halogen, etc. Any kind of organic compounds, its molecular composition contains carbon, the vast majority also contains hydrogen Elements. Since the hydrogen atoms of the organic compound molecules can be replaced by other atoms or radicals, resulting in a lot of other organic compounds, so modern people generally believe that hydrocarbons and their derivatives known as organic compounds, referred to as organic matter.
Q:Derivatives of vinyl acetate
Vinyl acetate can produce reactions that occur most of the olefins or esters. Such as the addition of bromine to form dibromide, the addition of hydrogen halide to produce vinyl haloacetate, which is the only way to produce the substance because there is no corresponding halohydrin. The addition of acetic acid under palladium catalysis can produce ethylene diacetate and CH3CH (OAc) 2. The latter can undergo a transesterification reaction with many carboxylic acids. As an alkene, vinyl acetate can also undergo a Diels-Alder reaction and a 2 + 2 ring addition

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