Paris Green

Paris green, see Copper acetate arsenate(III) (1/3) Pawellite, see Calcium molybdate(VI)(2—)... 

Paris Paris blue Paris Convention Paris green Paris Green Paris green Paris green [12002-03-8] Paris law Parison Parity Parkerizing Parkes crust... 

Kaiser-, imperial Caesarean, -blau, n. smalt, -gelb, n. mineral yellow, -griin, n. imperial green (Paris green). 

Mithilfe, /. help, assistance, cooperation, mithin, conj. therefore, hence of course. Mitisgriin, n. Mitis green, Paris green, mit-klingen, v.t. resonate, -machen, v.t. join in, take part in, conform to. -nehmen, v.t. take along, take, share weaken, exhaust, wear maltreat, criticize. 

Pariser, a. Paris. — — Blau, Paris blue — Grtin, Paris green. 

The use of plant extracts for insect control dates into antiquity the use of Paris green as an insecticide for control of the Colorado potato beetle in 1867 probably marks the beginning of the modern era of chemical control of injurious insects. The development of lead arsenate followed later in the nineteenth century for gypsy moth control. The commercial production of nicotine insecticides, the production of calcium arsenate at the time of the first world war, and the use of fluorine, arsenical, and cyanide compounds, as well as other inorganic chemicals for insect control, were important steps in pest control. These chemicals were applied largely by dilute high pressure sprays or dusts. 

Copper compounds are used routinely and widely to control freshwater snails that serve as intermediate vectors of schistosomiasis and other diseases that afflict humans (Hasler 1949 NAS 1977 Rowe and Prince 1983 Winger etal. 1984 Al-Sabri etal. 1993). These compounds include copper sulfate, copper pentachlorophenate, copper carbonate, copper-tartaric acid, Paris green (copper arsenite-acetate), copper oxide, copper chloride, copper acetyl acetonate, copper dimethyl dithiocar-bamate, copper ricinoleate, and copper rosinate (Cheng 1979). Also, many species of oyster enemies are controlled by copper sulfate dips. All tested species of marine gastropods, tunicates, echinoderms, and crabs that had been dipped for 5 seconds in a saturated solution of copper sulfate died if held in air for as little as a few seconds to 8 h mussels, however, were resistant (MacKenzie 1961). 

Inorganic arsenicals such as arsenic trioxide, sodium arsenite, lead arsenate, calcium arsenate and Paris Green have been used for many years as soil sterilants. Organic arsenical herbicides, in which the organic group is bonded directly to the arsenic atom, have been used extensively for post-emergence control of weeds in cotton. Several of the more important herbicides are sodium cacodylate (monosodium dimethylarsenic acid) and sodium salts of methane arsonic acid. The latter compounds exist in two principal forms the monosodium salt (MSMA) at pH6.4 and the disodium salt (DSMA) at pH10.2. 

Most of the compounds of arsenic are toxic when in contact with the skin, when inhaled, or when ingested. As with arsenics cousin phosphorus above it in group 15 of the periodic table, care must be taken when using arsenic. The compound arsenic trioxide (As O ), an excellent weed-killer, is also carcinogenic. Copper acetoarsenite, known as Paris green, is used to spray cotton for boll weevils. A poisonous dose of arsenic as small as 60 miUigrams can be detected within the body by using the Marsh test. 

Copper(ll) acetate is used as a pigment for ceramics in the manufacture of Paris green in textile dyeing as a fungicide and as a catalyst. 

Paris green - copper acetoarsenite, (CuO) 3 AS2O3 Cu(C2H302) -was widely used in blue flame mixtures until a few years ago. It produces a good blue flame, but it has all but vanished from commercial formulas because of the health hazards associated with its use. (It contains arsenic )... 

Paris green, 160 Particle size, effect of, 88, 101 Phosphorus as a fuel, 73... 

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