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Wednesday, May 20, 2020 | History

2 edition of Ethylenethiourea found in the catalog.

Ethylenethiourea

National Research Council of Canada. Associate Committee on Scientific Criteria for Environmental Quality.

Ethylenethiourea

Criteria For the Assessment of Its Effects on Man.

by National Research Council of Canada. Associate Committee on Scientific Criteria for Environmental Quality.

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Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesPublication (National Research Council Canada) -- 18469
ID Numbers
Open LibraryOL21879312M

3 Tolerance Assessment: Tolerances have been set for maneb and zineb at 40 CFR arid 40 CFR , respectively. Tolerances for inancozeb, expressed as zinc ethylene bisdithio- carbamate, have been established for raw agricultural commodities at 40 CFR , for meat byproducts at 40 CFR , and in processed food and feed at 21 CFR and 21 CFR , respectively. α-Naphthylthiourea (ANTU) is an organosulfur compound with the formula C 10 H 7 NHC(S)NH a white, crystalline powder although commercial samples may be off-white. It is used as a rodenticide and as such is fairly toxic. Naphthylthiourea is available as 10% active baits in suitable protein- or carbohydrate-rich materials and as a 20% tracking iations: ANTU.

Pesticide properties for ethylenethiourea, including approvals, environmental fate, eco-toxicity and human health issues. Ethylenethiourea The acute oral toxicity in experimental animals is low, and the long-term effects are mainly characterized by an antithyroid action. At dose levels > 25 mg/kg body weight, decreases in serum T 3, T 4, and protein-bound iodine (PBI) and increases in thyroid- stimulating hormone (TSH) have been found in studies on experimental.

This volume evaluates carcinogenicity to humans of 19 chemicals that are carcinogenic to the thyroid follicular-cell epithelium in rodents. These included some so-called 'anti-thyroid' drugs (methimazole, methylthiouracil, propylthiou-racil and thiouracil); some sedatives (doxylamine succinate and phenobarbital); and some other drugs including the systemic antifungal antibiotic griseofulvin. Aquatic biota 36 Terrestrial biota 42 General population exposure 45 Ambient air 45 Drinking-water 45 Soil intake 46 Dietary intake 47 Consumer products 49 Occupational exposure 50 6. KINETICS AND METABOLISM IN LABORATORY ANIMALS AND HUMANS 53 Absorption 53 Oral 53 Inhalation 54 Dermal


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Ethylenethiourea by National Research Council of Canada. Associate Committee on Scientific Criteria for Environmental Quality. Download PDF EPUB FB2

Ethylenethiourea focuses on the occurrence of ethylenethiourea (ETU) as a terminal residue resulting from agricultural use of ethylenebisdithiocarbamate (EBDC) fungicides. The book first states that EBDC forms the most essential class of fungicides for controlling diseases of agricultural crops.

Ethylene thiourea is used in the rubber industry and in the production of some fungicides. No information is available on the acute (short-term) or chronic (long-term) effects of ethylene thiourea in humans. In rodents chronically exposed to ethylene thiourea in their diet, effects on the thyroid have been observed.

Chemical Name: Ethylenethiourea CAS: MDL Number: MFCD Purity: >% (T) Molecular Formula: C3H6N2S Molecular Weight: Melting Point (degC): ethylenethiourea This substance was considered by previous working groups, in (IARC, ) and (IARC, ).

Since that time, new data have become available, and these have been incorporated into the monograph and taken into consideration in the present evaluation. Sample at an accurately known flow rate Ethylene thiourea is an animal teratogen and between 1 and 3 L/min for a total sample carcinogen [3,4].

Extra care must be taken to size of to L. Ethylenethiourea book not exceed 2 mg avoid inhalation, ingestion or skin contact. Abstract The publication is a summary of five separate research reports dealing with the metabolism and detection of ethylenethiourea (ETU) and a review of the most pertinent literature.

Studies on the toxicological aspects of ethylenebis (dithiocarbamate) fungicides and ETU have been included in Cited by: 3. A meta description is an HTML tag in the HTML code of your website, which allows you to customize a section of text that describes the page Ethylenethiourea book.

It plays a role in how your page is seen by search engine crawlers, and how it appears in SERPs. Ethylene thiourea is an antithyroid substance and animal carcinogen. In groups of rats fed or ppm for up to 90 days, marked increases in serum thyroid stimulating hormone were found.

Ethylene thiourea produced a high incidence of follicular carcinoma of the thyroid in rats after oral administration. The book has two main parts. The first concentrates on dithiocarbamates, summarizing what is known about their chemical and physical properties, behaviour in the environment, and effects on reproduction, embryotoxicity, teratogenicity, mutagenicity, and carcinogenicity.

The second part presents similar information for ethylenethiourea and. The objective of the present study was to determine the degradation products of mancozeb and ethylenethiourea (ETU) and elucidate the possible degradation pathways in solution as a result of chemical oxidation using ozone and chlorine dioxide.

This study was developed in a solution at ppm of mancozeb and ETU concentration over the course of 60 by: Technology Engineering Nonfiction Ethylenethiourea focuses on the occurrence of ethylenethiourea (ETU) as a terminal residue resulting from agricultural use of ethylenebisdithiocarbamate (EBDC) fungicides.

The book first states that EBDC forms the most essential class of fungicides for controlling diseases of agricultural crops. Comment on “On the positional and orientational order of water and methanol around indole: a study on the microscopic origin of solubility” Phys. Chem.

Chem. Phys.,18, Physical Chemistry Chemical Physics20 (3), DOI: / by: COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Commercial ethylene thiourea is available as a solid powder, as a dispersion in oil (which retards the formation of fine dust dispersions in work-place air), and “encapsulated” in a matrix of compatible elastomers.

In this latter form, ethylene thiourea may be least likely to escape into the work-place air. Symbol which looks like a small house Solid circle with an upward pointer in it.

Jump to content. ETHYLENE THIOUREA may be sensitive to prolonged exposure to light. Incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents.

Reactions with these materials generate heat and in many cases hydrogen gas. May react with acids to liberate hydrogen sulfide. Dithiocarbamate Pesticides, Ethylenethiourea (ETU), and Propylenethiourea (PTU) A General Introduction: Environmental Health Criteria No 78 Out of print World Health Organization: ISBN ISBN Order Number The book has two main parts.

The first concentrates on dithiocarbamates, summarizing what is known about their chemical and physical properties, behaviour in the environment, and effects on reproduction, embryotoxicity, teratogenicity, mutagenicity, and carcinogenicity.

Dithiocarbamate pesticides, ethylenethiourea, and propylenethiourea: a. Ethylene Thiourea CAS No. Reasonably anticipated to be a human carcinogen First listed in the Fourth Annual Report on Carcinogens () H N N H S Carcinogenicity Ethylene thiourea is reasonably anticipated to be a human carcino-gen based on sufficient evidence of carcinogenicity from studies in experimental Size: KB.

The following test methods are available from the Product Safety Laboratory by contacting: Note: These methods are provided to facilitate laboratory procedures only.

It is the trader's responsibility to make sure that the product is tested according to, and meets the requirements of, the Canada Consumer Product Safety Act (CCPSA) and its. CAS Number Synonym(s) AI; Ethylenethiocarbamide; Ethylenethiourea; ETU; Imidazolidinethione; 2-Imidazolidinethione; Mercaptoimidazoline; Mercazin I; NCI-C; Sodium neoprene accelerator; Soxinol 22; 2-Thioimidazolidine; EPA Pesticide Code: Abstract.

Ethylenethiourea (ETU) is a degradation product of the ethylenebis-dithiocarbamate fungicides. The effect of ETU on microsomal enzymes was studied (1) by measuring the hexobarbital sleeping time of male and female rats after administration in single oral doses of 20, 50, and mg/kg or in the diet at levels of and ppm and (2) by determining the aminopyrine-N-demethylase Cited by: 7.SMALL SPILLS AND LEAKAGE: Should a spill occur while you are handling this chemical, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with % ethanol and transfer the dampened material to a suitable container.

Use absorbent paper dampened with % ethanol to pick up any remaining material. Seal the absorbent paper, and any of your clothes.