Latex preservation

Used in agriculture as a fertilizer and defoliant in the manufacture of nitric acid, hydrazine, hydrogen cyanide, urethanes, acrylonitrile, nitrocellulose, nitroparaffins, melamine, ethylene diamine, and sodium carbonate as an intermediate in producing explosives, synthetic fibers and dyes and used industrially as a refrigerant gas, neutralizing agent in the petroleum industry, latex preservative, and the production of fuel cells. 

Uses Manufacture of acrylonitrile, hydrazine hydrate, hydrogen cyanide, nitric acid, sodium carbonate, urethane, explosives, synthetic fibers, fertilizers refrigerant condensation catalyst dyeing neutralizing agent synthetic fibers latex preservative fuel cells, rocket fuel nitrocellulose nitroparaffins ethylenediamine, melamine sulfite cooking liquors developing diazo films yeast nutrient. 

OctopoL niarco] liq. ditfaiocaibamaies pdtymeiizatioo shortstop for SBR, CR, and natural rubber precipitant for heavy metals in wastewater treatment natural rubber latex preservative. 

Type I centrifuged natural latex preserved with ammonia only, or with formaldehyde followed by ammonia. 

Type III centrifuged natural latex preserved with low ammonia and with other necessary preservatives. 

K. Vivayganathan, M. Y. Amir Hashim and F. Hanim, Environmental-friendly natural rubber latex preservation systems Proceedings, International Rubber Conference 2008, 20 23 October 2008, Kuala Lumpur, Malaysia. 

In previons work (Allen et al., 1963 Tangpakdee et al., 1997), NR coagulated from fresh NR latex, just after tapping from Hevea brasiliensis, was found to be soluble in tolnene, cyclohexane, and tetrahydrofuran. In contrast, the mbber from latex preserved in the presence of ammonia contained about 30-70% gel fraction, which was insolnble in the solvents. The formation of the insoluble fraction would be concerned with the interactions of mbber and proteins, because the gel fractions are reported to be soluble in the solvents after the enzymatic deproteinization (Eng et al., 1994 Tangpakdee et al., 1997). If the interactions are physical but not chemical, it is possible to remove the proteins from the mbber after denaturation of the proteins with urea. Here, the removal of the proteins from fresh NR latex and preserved high-ammonia latex was investigated with mea in the presence of surfactant. 

Uses Fertilizer refrigerant nitriding of steel condensation catalyst neutralizer extraction solvent petroleum industry latex preservative explosives taste and odor control agent in water treatment condensate conosion inhibitor buffer in cosmetics foods (processing aid) phamiaceuticals (alkalizing agenL buffer) microbial fermentation nutrient in food-pkg. applies. 

Preservation of cutting oils Preservation of Synthetic Rubber Latex Preservation of adhesives... 

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