tailieunhanh - Hydrocarbons and their halogenated, sulphonated, nitrated or nitrosated derivatives

The modern organic movement began in Europe around the 1920s, when a group of farmers and consumers sought an alternative to the industrialisation of agriculture. Of key importance to these farmers and consumers was caring for the soil and natural processes upon which agriculture depends, including not using inputs such as artificial fertilisers and synthetic chemicals. A leading figure at the time was the Austrian thinker, Rudolf Steiner, whose ideas led to a system of cultivation known as biodynamic. In the middle of the 20th century enthusiasts brought organic techniques from Europe to Australia, a place with very different climate, soils and density of settlement. With. | 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 Section 6 Chapter 29 1 CUSTOMS TARIFF SCHEDULE 3 CHAPTER 29 Organic chemicals Sub-Chapter I Hydrocarbons and their halogenated sulphonated nitrated or nitrosated derivatives Acyclic hydrocarbons Cyclic hydrocarbons Halogenated derivatives of hydrocarbons Sulphonated nitrated or nitrosated derivatives of hydrocarbons whether or not halogenated Sub-Chapter II Alcohols and their halogenated sulphonated nitrated or nitrosated derivatives Acyclic alcohols and their halogenated sulphonated nitrated or nitrosated derivatives Cyclic alcohols and their halogenated sulphonated nitrated or nitrosated derivatives Sub-Chapter III Phenols phenol-alcohols and their halogenated sulphonated nitrated or nitrosated derivatives Phenols phenol-alcohols Halogenated sulphonated nitrated or nitrosated derivatives of phenols or phenol-alcohols Sub-Chapter IV Ethers alcohol peroxides ether peroxides ketone peroxides epoxides with a three-membered ring acetals and hemiacetals and their halogenated sulphonated nitrated or nitrosated derivatives Ethers ether-alcohols ether-phenols ether-alcohol-phenols alcohol peroxides ether peroxides ketone peroxides whether or not chemically defined and their halogenated sulphonated nitrated or nitrosated derivatives Epoxides epoxyalcohols expoxyphenols and epoxyethers with a three-membered ring and their halogenated sulphonated nitrated or nitrosated derivatives Acetals and hemiacetals whether or not with other oxygen function and their halogenated sulphonated nitrated or nitrosated derivatives Sub-Chapter V Aldehyde-function compounds Aldehydes whether or not with other oxygen function cyclic polymers of aldehydes paraformaldehyde Halogenated sulphonated nitrated or nitrosated derivatives of products of 2912 1 7 05 CUSTOMS TARIFF SCHEDULE 3 Section 6 Chapter 29 2 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 Sub-Chapter VI Ketone-function compounds and .