Dithiocyanate methane, also known as methyl dithiocyanate, seed soaking spirit, and methylene dithiocyanate, is abbreviated as MBT. Light yellow or nearly colorless needle-like crystals. Molecular weight: 130.2, relative density (20â??) : 1.1�±0.1, m.p. : 102-104â??, Flash point: 53â??. It is almost insoluble in water, with a solubility of 2.3�?10-6 in water at room temperature. So when in use, some special dispersants and penetrants are usually added. It is soluble in dioxane, dimethylformamide, etc., and slightly soluble in other organic solvents. MBT is very stable in the pH range of 6 to 6.5, but it will hydrolyze rapidly when the pH reaches 8. Under pressure, an excess of sodium thiocyanate (or sodium thiocyanate) and dichloromethane are added to the reactor, and the stirring is started. At the same time, the temperature is raised to 80-100. After the reaction is completed, dichloromethane is recovered, and the solid and liquid phases are separated to obtain crude dithiocyanate methane.
The scientific name of the application is S-ethyl-N, N-diisobutylthiocarbamate, and its common name is butylate. A clear liquid with a fragrant odor, with a relative density of 0.9417 and a boiling point of 138-(21133.322P, Chemical Booka). It is insoluble in water but miscible with kerosene, xylene and methyl isobutyl ketone. Non-corrosive. It is produced by the reaction of diisobutylamine with phosgene to form aminoformyl chloride, which is then reacted with ethyl mercaptan. It is a herbicide and can be used to control broadleaf and narrow-leaf weeds in cornfields.
Ethoxyfluoxane belongs to the fluorine-containing diphenyl ether class. It is a selective, pre-emergence and post-emergence contact herbicide with extremely low dosage. Weeds are mainly killed by absorbing the herbicide through the coleoptile and mesocotyl. It is applicable to rice, soybeans, wheat, cotton, corn, oil palm, vegetables and orchards, etc., to control broadleaf weeds and some grasses of the Poaceae family, such as Dysphora, barnyard grass, sedge, cyanine, broomweed, datura, etc. The dosage is 1-2g of the active ingredient per 100m2. Four to six days after the transplanting of rice in Chemicalbook, from the bud stage to the 1.5-leaf stage of barnyard grass, apply 1.5 to 2.3mL of 24% emulsifiable emulsion per 100m2 to make toxic soil and evenly spread it. 0 can also be used. Apply 5% granules. It is used for post-sowing and pre-emergence application of crops such as soybeans and cotton. Apply 7.5mL of 24% emulsifiable concentrate per 100m2 and evenly spray it on the soil surface with water. A certain degree of drug damage may occur during the use of ethoxfluoxane, but it usually recovers after half a month.
Compared with sodium and potassium glyphosate salts, ammonium glyphosate salts have the advantages of being less prone to caking, having lower manufacturing costs and higher herbicidal activity. Monsanto Corporation of the United States developed a glyphosate ammonium salt soluble granule agent (SG), which was mass-produced in 1993. After screening, the Mon44068 adjuvant was finally selected for this dosage form. Its most prominent feature is that it significantly reduces toxicity to mammals and water, and it also has high herbicidal activity. This dosage form is a dust-free extruded granule with an average bulk density of 1.45kg/ L. It can rapidly disintegrate into a solution under a wide range of different temperatures and concentrations in reference water conditions (soft water or hard water). Meanwhile, it retains the convenience of liquid dosage form use and the ease of handling in packaging containers (can be packed in paper bags). At the beginning of this century, the first commercialized product launched by the company in the Chinese market was the "747 Farmer's Joy" ChemicalbookSG. It is a soluble granulation agent containing 74.7% ammonium glyphosate salt, 20% additives and excipients. It appears as light yellow or pale yellow granules with a particle size of 1 to 3mm. When put into water, it can dissolve rapidly and the solution is slightly acidic. Because this product has low toxicity, is solvent-free and dust-free, it became a new product that farmers welcomed and loved at that time. In China, Xin 'an Group Company has developed the first glyphosate ammonium salt soluble granule agent "Nongwang 757SG", which contains 75.7% glyphosate ammonium salt. At present, there are also higher concentration products of glyphosate ammonium salt soluble granules developed in China, such as 80% and 88.8%, etc. The main purpose is to reduce costs and inventory. In terms of the current quality of glyphosate ammonium salt soluble granules both at home and abroad, domestic products may still have a certain gap compared with similar foreign products, mainly reflected in the quality and dosage of the additives used.
Brief introduction
Item name: Palladium hydroxide
Formula: H2O2Pd
CAS No.: 12135-22-7
Molecular Weight:122.42
Melting point: 297-298�ºC
Appearance: Dark-brown to black crystalline powder
Solubility: Soluble in acetic, insoluble in water
Palladium hydroxide has a wide range of applications in pharmaceutical organic synthesis and chemical industry, mainly plays the role of catalytic hydrogenation, including debenzylation, olefin hydrogenation, benzoic acid reduction, aldehyde oxidation and so on.
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Uses: Used as enamel colorant, also used for copper plating, copper oxide and pesticides
Use: Used to make pure copper oxide, and also as raw material for making other copper salts and copper plating. Also used to make pesticides. Used as mordant, copper catalyst, combustion aid. Used as colorant in enamel industry. Also used in paint industry to make inorganic pigments.
Use: Used as analytical reagent and oxidant
Use: Analysis of strontium, nitrating agent for aromatic organosilicon compounds, catalyst for organic reactions.
1,3-Propanesultone is an important pharmaceutical intermediate and a crucial raw material for the production of lithium batteries. It is also used as a brightener, dye, dual ion surfactant, and sulfonating agent.
Product Name: 18-Crown-6
CAS: 17455-13-9
MF: C12H24O6
MW: 264.32
EINECS: 241-473-5
18-Crown ether-6 is a kind of macrocyclic ether organic compound. The main uses are high-efficiency phase transfer catalysts and complexing agents for fine organic synthesis, as well as extractants for the separation and extraction of precious metals and rare earth elements. In chemical analysis, it can be used for the enrichment, separation and masking of ions. It can also be applied in the fields of medicine, biochemistry and the electronics industry as an ionic conductive material and a material for the production of liquid crystal display components.
Items Standard
Appearance Colorless liquid
Purity by weight 99
Density 09270932
BP oC 6768
Application
Secondary alcohols are a class of important compounds They are not only significant organic intermediates but also widely used in fine chemicals such as drugs pesticides and fragrances 1phenyl1butanol is a type of secondary alcohol and can be used in organic synthesis
The raw materials of the main soft chain segments of polyurethane produced on an industrial scale are classified into the following types: polyether type represented by polytetramethylene glycol; Polyester polyol type represented by adipate ester series esters; The lactone type represented by polycaprolactone k ester; Or polycarbonate type represented by polycarbonate diol. Polycarbonate diol is used in polyurethane for artificial leather, synthetic leather, coatings, coating agents, adhesives, etc.
Product Name 2-Ethoxyphenol
CAS No. 94-71-3
Appearance White solid or colorless to light brown liquid
Assay â?¥99%
Capacity 200mt/year
Min.packing 100g
Application Fragrance/pharmaceutical/pesticides intermediate
Standard Enterprise export
More information Synonyms: Pyrocatechol monoethyl ether
Molecular Formula: C8H10O2
Molecular Weight: 138.16
CAS Registry Number: 94-71-3
EINECS: 202-358-5
Density: 1.09
The use of ortho ethoxyphenol:
1. Spice synthesis
As a key raw material, ethyl vanillin (ethyl vanillin) is widely used in food, cosmetics and daily chemical essence. Participate in the preparation of high-value spices such as eugenol and sandalwood 803.
2. Food additives
Prepare apricot, banana, cherry and other fruity essence for seasoning frozen food, drinks and cakes.
3. Cosmetics and daily chemical products
As a floral essence component, it is used in perfume, toothpaste and skin care products, and has both functions of fixing and correcting fragrance.
4. Pharmaceuticals and pesticides
Used for synthesizing pharmaceutical intermediates such as antibiotics and analgesics.
As a synthetic raw material for pesticides and dyes.
5. Industrial applications
Prepare household incense plates, optimize aroma and reduce ash diffusion.
As a component of gasoline antioxidant and anti gelling agent, it enhances fuel stability.
6. Research field
As a biochemical reagent, it is used for organic synthesis research in the field of life sciences.
Application:
glycol phenyl ether is an excellent match for phenolic coatings and
linings; it is also an excellent coalescent for acrylic-based latexes. glycol phenyl
ether is also used extensively in dyeing applications, where it can function as both a dye
solubilizer and as a dye carrier. glycol phenyl ether has superior viscosity
reduction properties in metalworking fluids.
Application
4-n-butylresorcinol, also known as Rucinol, is an effective ingredient in many cosmetics and can inhibit the production of melanin
Product Name 4-Butylresorcinol
Chemical Formula C10H14O2
Shelf Life 24 Months
Appearance Powder
Storage Cool Dry Place
When used as a solvent, it has the characteristics of high boiling point, stability and pleasant smell. It can dissolve nitrocellulose, cellulose acetate, vinyl resin, coumarone resin, alkyd resin, glycerol alkyd resin, etc. It is often used in combination with ethanol, ketones, esters, and their Chemicalbook solvents. For the use of spices, it is hawthorn, mimosa, lilac and other flavors of blending raw materials, and widely used in soap flavor and tobacco flavor. Used for the synthesis of phenylglycolic acid, �±-phenylindole, isobutophenipropionic acid, also used as plasticizer of plastics.
Application
Dye intermediates and analytical reagents. This product is used for the determination of indole, skatole, urocyanin, tryptophan and ergogenine, etc., and is also used to distinguish serum rash from scarlet fever.
2. In terms of dyes, it can be used to synthesize thermosensitive dyes. It is also used in the production of cationic brilliant red G (C.I.B. Basicred 52). It can also be used as a dye intermediate; It is used as a reagent for the determination of urobilin, indole, alkaloids, etc., as well as a chromatographic analysis reagent.
3. It is used to determine indole, skatole, urocyanin, tryptophan, albumin, hydrogen peroxide, arsine, o-aminobenzoic acid, antipyrine and ergoine, etc., and is also used to distinguish serum rash and fishy red fever.
4. Manufacture dyes.
5. Reagents for the detection of amino acids, peptides, amines, indole, hydrazine, hydrogen peroxide, o-aminobenzoic acid, antipyrine and ergosine; Used as a chromogenic agent for tryptophan; Used for detecting tryptophan in proteins; Test reagents for identifying indole-generating microorganisms; It can react with pyrrole and primary amines to form colored condensation products (Schiff base).
Product Name Crotonaldehyde
CAS: 123-73-9
MF: C4H6O
MW: 70.09
EINECS: 204-647-1
vapor density 2.41 (vs air)
refractive index n20/D 1.437
form Liquid
color Clear
Odor Pungent
explosive limit 19.5%
Packing 200kg/Drum
Application: Crotonaldehyde (2-butenal, �²-methyl acrolein, propylene aldehyde) is similar in structure to acrolein, as both are �±,�²-unsaturated aldehydes. This structural similarity leads to similar sensitizing and irritating properties of the two compounds. Crotonaldehyde is used industrially in the preparation of other chemicals (chiefly sorbic acid), flavoring agents, and can form endogenously and in the environment.
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