Which Acid Is Used For Coagulating Rubber From Latex

Negative charges are found.

Which acid is used for coagulating rubber from latex. Coagulation process of latex. As however the total amount of acid used for coagulation is approximately one half of one per cent and by far the greatest proportion of this will be removed in the serum and in the wash water it seems unlikely that any quantity approaching martin s figure would be allowed to remain in the rubber. It consists of an aqueous suspension of colloidal rubber particles. 3 the rubber has satisfactory mechanical properties when vulcanized in rubbers sulfur or accelerator mixings.

4 the rubber ages satisfactorily in rubber sulfur and accelerator mixings. 5 hcl per kg of dry rubber has no deleterious effects on the properties of raw rubber and all samples examined had better ageing properties than formic acid coagulated rubber. It would be seen that the use of excessive quantities of. A method for coagulating a natural rubber latex which comprises adding 1 an acid and 2 i at least one salt selected from the group consisting of calcium salts and ammonium salts of nitric acid sulfuric acid carbonic acid phosphoric acid hydrochloric acid and formic acid and or ii a polymeric coagulating agent to a natural rubber latex under agitation to thereby form a porous.

Use of hydrochloric acid as a coagulant in the amounts used in our experiments i e. Each rubber particle is made up of rubber polymers covered by a layer of protein membrane. Formic acid is cost efficient and guarantees a consistent high quality natural rubber product. Which acid is used for coagulating rubber from latex.

The milky fluid obtained from tapped rubber trees is called latex. 0 6 to 0 9 1 of o. It is the preferred choice for coagulating latex.