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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 13, Number 1
JKCSEZ 13(1)
February 20, 1969 

 
Title
Studies on the Characteristics of Humic Acid and its Utilizations. (Ⅲ) Utilizations of Humic Acid (Nitrohumates)

탄슘흄산의 성상및 응용에 관한 연구 흄산(니트로흄산염)의 응용 (제3보)
Author
Won Taik Kim

김원택
Keywords
Abstract
The adaptabilities of various nitrohumates (-K, -Na and -NH4 salt) as a soil conditioner and a raw material for soluble phosphatic fertilizer were studied. 1. Nitrohumates (especially-NH4 salt) protect the soil from fissures and control the phosphoric acid adsorptive functions of soils considerably. 2. Most effective nitrohumic acids as a soil conditioner were prepared with 15% HNO3 solution composed of five times of original humic acids (by weight) at 80℃ for 2 hrs under continuous stirring. 3. When 50% (by weight) of NH4-nitrohumate were added to apatites in water and boiled for 2 hrs, maximum 26% of P2O5(apatite contains 37% of P2O5) were changed into water soluble forms.
Page
62 - 67
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