Stearic Acid 1838

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

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Supply Capability:: 8000MT/month m.t./month

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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.

Stearic Acid 1838

Q: Compare the difference between London smoke and Los Angeles photochemical smog: Los Angeles photochemical smog nitrogen content and hydrocarbons and derivatives more, mainly close to the car exhaust. Foggy London situation related to coal, soot solid particles and sulfur oxide more. Foggy London is more bleak, and Los Angeles is more toxic.

Q: Does the carboxylic acid react with the Grignard reagent?: Reaction. Grignard reagent is an organic strong base, first and the acid reaction of carboxylic acid to produce magnesium salt, and sometimes further nucleophilic attack, control conditions will get different products, but the first acid-base reaction is unavoidable.

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: What is the derivative of benzene?: Benzene homologues: the structure of similar molecular composition of a number of different groups of CH2 atoms.

Q: What are the oxygen consumption of the oxygen-containing derivatives of the mass hydrocarbons?: For this comparison, you can see the experimental formula of this material, a C corresponds to an oxygen, 4 H corresponds to an oxygen, the experimental consumption of oxygen up, then under the same quality conditions, the greater the oxygen consumption of this material

Q: Hydrocarbons and hydrocarbon derivatives are not all non-electrolytes: Hydrocarbons are, derivatives are not necessarily, such as organic acids (formic acid, acetic acid, etc.)

Q: The role of aromatic hydrocarbons: Aromatic hydrocarbons referred to as "aromatic hydrocarbons", usually refers to the molecule containing benzene ring structure of the hydrocarbons. Is a closed-chain type. With the basic structure of the benzene ring, the history of the early discovery of such compounds have more aromatic flavor, so called these Hydrocarbons are aromatic hydrocarbons, and hydrocarbons that are later found to have no aromatic flavor are also commonly used in this way, such as benzene, naphthalene, etc. The homology of benzene is CnH2n-6 (n≥6).

Q: High school chemistry: Is the esterification reaction of carboxylic acid and alcohol a polymerization reaction?: No, the polymerization reaction is the reaction of the polymer, the esterification reaction is the reaction of the formation of small molecules

Q: What is the intermediate in organic chemistry?: The reaction intermediate (or intermediate) is the intermediate product in the chemical reaction. Generally unstable, difficult to separate. It needs to be distinguished from the transition state: the reaction potential map shows all the reaction intermediates except for the reactants and the product; the transition state is all the highest point of the reaction curve.