First, glyphosate formulations
1, glyphosate (AS)
Glyphosate is usually classified according to content, such as 10% of the glyphosate AS; 41% glyphosate AS; 51% glyphosate isopropylamine salt, AS; 62% glyphosate isopropylamine salt.
Glyphosate 10% Glyphosate AS can be prepared directly, but also by the production of glyphosate can be generated when the liquid concentrated, re-injection to a certain amount of the original drug preparation. Was divided into 10% of the sodium salt licorice and ammonia salts.
41% of the glyphosate salt is according to different AS: 41% glyphosate isopropylamine salt; 41% of glyphosate potassium salt; 41% Glyphosate ammonia salt. AS 41% glyphosate can also be divided according to their viscosity: viscosity of 41% glyphosate general AS (viscosity at 14-18cps); high viscosity of 41% glyphosate AS (18-25,25 -35,35-45,45 cps and above). AS 41% glyphosate can also be divided according to different colors, can be made into a variety of colors such as: red, orange, yellow, green, green, blue, purple.
Other glyphosate AS, such as glyphosate resistance to low temperature AS; the agent mixed with other pesticides such as glyphosate - MCPA; glyphosate - straw Wei; glyphosate - imazethapyr; grass Gan phosphine - paraquat and so on.
2, glyphosate soluble powder (SP)
Glyphosate SP at high and low points of glyphosate acid content: 30% Glyphosate SP; 50% glyphosate SP; 65% glyphosate SP.
SP by a single glyphosate glyphosate glyphosate ammonium or potassium, sodium, plus additives and add material to the production preparation, can be glyphosate powder, add additional functional materials, additives and Tim materials to produce preparation.
3, glyphosate soluble granules (WDG)
Glyphosate was 75.7% WDG major domestic ammonium glyphosate granules alone (74.7% Monsanto benzene-WDG, a single ammonium concentration of glyphosate 74.7%), glyphosate production process can be roughly WDG divided into two types:
① by a single ammonium glyphosate, special agent, Tim Mix, after granulation, drying, screening, packaging can be.
② by the Glyphosate, functional Tim materials, special agent, Tim Liu, the first pre-mixed, put it aside for some time, and then after granulation, drying, screening, packaging can be.
① ② Compared with the single-ammonium eliminating the entire process of vegetation, which appears simple, easy, investment, energy consumption, consumption will be less, the cost will be lower, is not present, respected the process.
Glyphosate WDG can also be prepared into a variety of colors.
Second, glyphosate additives
To achieve the effect of glyphosate herbicide must be absorbed by plants, into the plants, and ultimately hinder the process of plant life, so as to achieve the purpose of weeding. The basic process for glyphosate herbicide: glyphosate formulations diluted with water; spraying pesticide; in the plant leaf surface wetting, spreading; droplets began to penetrate the waxy leaf surface was (and in the water droplets are evaporation); fluid droplets into the plant and distributed; fluid droplets to the plant roots with the plant transfer; into the life of the plant cell, and the destruction of plant life in the process; plant gradually lost its vitality, and ultimately death. In this process, the agent's main role is: A, reduce the droplets and leaf surface wax layer of the interfacial tension and contact angle, the ground floor of droplets smooth start; B, increase the droplets penetrate the leaf surface wax layer ability to successfully enter the plants droplets (droplets, or promote the absorption of plants); C, so that fluid droplets within the plant the better dispersion and conduction, until the droplets reach the plant life unit.
Glyphosate additives currently used for the main SAA are: butter, fatty amine ethoxylates, alkyl polyglycosides, fatty alcohol ethoxylates, silicone SAA, betaine, amino acids SAA, anti-drift agents, anti- Hard agent, synergist and so on. Glyphosate is a low toxicity, broad-spectrum, highly efficient non-selective herbicide after the shoot, can transfer in plants, but only sprayed to be shown for herbicidal activity. Weeding effect depends largely on the merits of the fine selection of suitable additives to improve the herbicidal activity, the role of additives on activity of glyphosate as follows:
① wetting and infiltration. Additives can reduce the liquid's surface tension and contact angle, increase the liquid and the surface wax layer of leaves, the affinity and increase the amount of liquid adhesion is conducive to liquid absorption and penetration.
② solubilization. The solubility of glyphosate on the plant has a lot to the spread of transmission, the use of additives can improve the solubility of glyphosate in water, and promote the liquid conduit in plants, particularly in the chemicals reached the critical micelle concentration can form micelles with the liquid, so that a sufficient number of glyphosate into plants, which play a herbicidal activity.
③ chemical structure of additives on the activity of glyphosate. Many research results show that not all additives reduce the surface tension of all work on glyphosate activity, infiltration is not just caused by surface tension reduction, and different types of additives, of different chemical structures have a greater activity of glyphosate impact. Cationic additives than other ionic additives can increase the activity of glyphosate, anionic and Zwitterionic additives usually higher than the effect of non-ionic additives poor. That is the best cationic additives, followed by non-ionic additives, anionic and Zwitterionic additives poor. Monsanto's Roundup with 15% of the auxiliary agent and additives are the main component of tallow amine ethoxylate, ammonium sulfate and water. Main component of domestic glyphosate additives as APG (APG), ammonium sulfate, water and a small amount of anionic SAA, anionic SAA to NP-10 phosphate phosphate amine salt and amine salt is the best 601, the active ingredient content 35% and 45% of sub-two. Now import the special additives on the market the active ingredient with a weak non-ionic and cationic tallow amine SAA, while the domestic market, a special agent of the better active ingredient is a single non-ionic SAA alkyl (more) glucoside, which is why domestic additives to compare the reasons for import of chemicals, although the alkyl (poly) glycoside effect is very good. Domestic alkyl (more) glucoside content is generally 50% effective, price 13000-15000 yuan / ton. SAA domestic tallow amine tallow amine usually polyoxyethylene ether, polyether 15-20 applicable to the number of glyphosate, priced at about 23,500 yuan / ton.
A major supplier of special chemicals glyphosate manufacturers as follows:
Akzo Nobel: 4130A, tallow amine glyphosate additives, water content ≤ 5%, the effective content of 95%.
Huntsman huntsman Company: TERWET3780, tallow amine glyphosate additives.
Jingzhou Longhua: 656CL, modified tallow amine, the export of glyphosate formulations Sanonda Group, additives are used in this recommended amount of 14-17%.
British Blue Technology Co., Ltd. Nanjing: TOXIMUL8363, concentrated additives tallow amine glyphosate, the active matter content close to 100% recommend the amount of 5.0-7.5% and sales price of about 30,000 yuan / ton, plus the amount of feedback from customers 5.0% agricultural imports can reach up to results.
Blades Technology Industrial Co., Ltd. Nanjing: special additives A, Active content 35%; B type, 45% active matter content, the company actives alkyl polyglycoside.
Yangzhou morning of the Technology Group: special additives Active content 40-42% for the active substance produced by APG.
Sinopec Jinling Petrochemical Research Institute: EF8108, Active content 45%, plus the amount of 10% - 15%, active material for the production of glucose in the company of alkyl polyglycosides.
Fine Chemical Co., Ltd. Nanjing Ruize: PA-818, Active content 36%; PA-828, Active content 46% actives alkyl polyglycoside.
Yangzhou Daily Chemical Co., Ltd. Green cleaning: JL-3501, Active content 35%; JL-4501, Active content 45%, active material produced for the APG.
Too much of the 4204 series of Nanjing
1) 10% glyphosate special additives (4204-10) currently on the market for 10% glyphosate sodium and ammonium are two points, the majority concentrated mother liquor back to the original drug injection preparation .
2) 41% glyphosate special additives (4204 series)
A. 4204-A ,4204-B, the APG-based.
B. 4204-N, the tallow amine ethoxylates based.
C. 4204-J, low-temperature storage stability of glyphosate potassium salt of glyphosate as isopropylamine salt of glyphosate potassium salt Bu Zhiyu order to analyze them at low temperatures, the additives can be.
D. 4204-G, to adjust the viscosity.
E. 4204-JL, glyphosate - MCPA agent auxiliaries.
F. 4204-MCW, glyphosate - Gateway agent of wheat straw with additives.
G. 4204-MCY, glyphosate - imazethapyr agent auxiliaries.
H. 4204-BCK, glyphosate - Paraquat auxiliaries.
3) glyphosate soluble powder additive for 4204-P
4) using glyphosate soluble granules auxiliary 4204-K
Note: not all listed, in particular, some well-known products
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