Thiourea is a reagent in organic synthesis. Acide aminoiminomethanesulfinique . Columbus, WI. Safety & Documentation. Evacuate personnel to safe areas. Synonyms Aminoiminomethanesulfinic acid; Thiourea dioxide Recommended Use Laboratory chemicals. 1758-73-2 EC-No. This section provides a listing of alternate names for this chemical, Other Names: Thiourea dioxide, Spectralite TM, thiocarbamide, thiourea, thio-urea Dye Use: Color stripper, indigo reducer, twice as strong as, and much safer than, sodium dithionite Best On: Cotton, linen, hemp, ramie, etc. Of the three, it is in my experience the most effective at removing dye. P501 Dispose of contents/ container to an approved waste ... Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. 34540;Tec Light;Thiourea dioxide 3 - Hazards Identification SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT Spontaneously flammable in air. Incompatible with strong oxidizing agents, strong bases. Safety Information. <>>> not available not available <= 100 % For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16 SECTION 4: First aid measures 4.1 Description of first aid measures General advice Consult a physician. SEM and EDX results. Prevent entry into waterways, sewers, basements or confined areas. National Ocean Service, <> Thiourea dioxide is a reducing agent and a derivative of sulfinic acid (a weak inorganic acid). Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Thiourea dioxide is not very toxic, but it is irritating to skin and mucous membranes. Articles of Thiourea dioxide are included as well. Use water spray, foam, powder, carbon dioxide. Continuing to use the chemicals in the vat is preferable to uncontrolled disposal. Product name 1,3-Diethyl-2-thiourea Product code 049-16302 CAS RN 105-55-5 Formula C2H5NHCSNHC2H5 Manufacturer FUJIFILM Wako Pure Chemical Corporation 1-2 Doshomachi 3-Chome Chuo-ku, Osaka 540-8605, Japan Phone: +81-6-6203-3741 Fax: +81-6-6203-5964 Supplier FUJIFILM Wako Pure Chemical Corporation 1-2 Doshomachi 3-Chome, Chuo-ku, Osaka 540-8605, Japan Phone: +81-6 … References USA.gov. Thiourea dioxide can be strongly diluted with water and poured down the drain. Thiourea-doped titanate nanotubes calcined at 600 °C presented anatase structure, showing an increase in the degree of crystallinity compared with DI water and acid-washed titanate nanotubes. Thiourea dioxide is a reducing agent and a derivative of sulfinic acid (a weak inorganic acid). Consult a physician. Thiourea 1. It is assumed, however, that only 10% of this paper is recycled, since blueprint paper often contains confidential information (e.g., construction plans). Disposal considerations Waste Disposal Methods Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Uses advised against Food, drug, pesticide or biocidal product use. 4 - First Aid Measures AFTER INHALATION If inhaled, remove to fresh air. Irritating to eyes, respiratory system and skin. Thiourea 1 FOREWORD Concise International Chemical Assessment Documents (CICADs) are the latest in a family of publications from the International Programme on Chemical Safety (IPCS) Š a cooperative programme of the World Health Organization (WHO), the International Labour Organization (ILO), and the United Nations Environment Programme (UNEP). Product name : Thiourea CAS-No. Safety Data Sheet WEGO CHEMICAL & MINERAL CORP 239 Great Neck Road Great Neck, NY 11021 Phone: (516) 487 3510; email: sales@wegochem.com Date of Revision: 1/26/2015 THIOUREA DIOXIDE Section 1 - Chemical Product and Company Identification Remove all sources of ignition. CAS Number:1758-73-2 EINECS/ELINCs: 217-157-8 % weight: >99 2. THIOUREA SOLUTION Safety Data Sheet www.lobachemie.com 05/04/2019 6/10 THIOUREA AR (62-56-6) Persistence and degradability May cause long-term adverse effects in the environment. Thionyl chloride is an inorganic compound with the chemical formula S O Cl 2.It is a moderately volatile colourless liquid with an unpleasant acrid odour. It can be irritating to the nose, throat, and airways and potentially paralyzing to breathing if inhaled in large quantities. ENVIRONMENTAL PROTECTION Do not let the product enter into drains. 10.2 Chemical stability. First-aid measures 4.1 Description of necessary first-aid measures General advice. FOB Price:1590 USD/Metric Ton Min.Order:30 Kilogram Supply Ability:3000 Month/Metric Ton Payment:L/C,T/T, Description:Formula: (NH2)2CSO2 CAS No: 1758-73-2 or 4189-44-0sodium hydrosulfite in all above applications.Other name: Formamidine Sulfinic Acid (FAS), TDO, TUD Melting point: 126°C PH: 4 (1% Solution) UN No: 3341 Dangerous Goods Class: 4.2 Specification: &nb Date of Revision: 1/26/2015 THIOUREA DIOXIDE Section 1 - Chemical Product and Company Identification ... P501 Dispose of contents/ container to an approved waste disposal plant. Bud dormancy in plants can be inhibited by thiourea which is used as a growth stimulator. It is odorless and has a taste, often described as bitter. Mobility in soil No additional information available 12.5. 10.3 Possibility of hazardous reactions. Dyers will often just do a quick 10-30 second dip in the vat to get light blues, but this doesn’t give the indigo time to penetrate the fiber. Registration dossier . Store in a cool, dry place out of the light i.e. Examples include recommended measures on fire-fighting, transport and recycling and disposal. 1758-73-2 EC-No. Gives off irritating or toxic fumes (or gases) in a fire. Thiourea dioxide CAS-No. Use appropriate media for adjacent fire. no data available. 6.1 Relevant Sciencemadness threads; Properties Chemical. Soluble in water (27 g / L at room temperature). She uses an indigo vat reduced with thiourea dioxide but was having trouble achieving pale blue colors. C&L Inventory . 14. Aqueous solutions are acidic and corrosive. Thiourea emissions may occur, especially from the disposal of waste paper. 2/Disposal Destroy the product by incineration (in accordance with local and national … Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Lower Explosive Limit (LEL): data unavailable, Upper Explosive Limit (UEL): data unavailable, Autoignition Temperature: data unavailable, Vapor Density (Relative to Air): data unavailable, National Oceanic and Atmospheric Administration. Potential Health Effects ... alcohol-resistant foam, dry chemical or carbon dioxide. No significant long term inhalation hazard; irritation usually subsides after exposure ceases. Physical. endobj Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Both sodium hydrosulfite and thiourea dioxide are sulfur based and will release hydrogen sulfide. Do not contaminate surface water. Heating it in a kiln/oven is another possibility, as the decomposition produces carbon dioxide, sulfur dioxide, nitrogen, ammonia. Thiourea dioxide has a shelf life but it’s longer than some things you read might indicate. Storage. ��X��bi�h�@ۃ��ޚs�J7�A3jum��]D�D�ˍ�覕� ~)�⌆�9&�3�0�ޝ�&4G[�S�1}ߊlX��������{�_�q�8��'.���۾��^�P��lU4L/Ѯ�k`�v��'p�Q~���uoy� Thiourea was teratogenic in rats exposed to a 0.2% solution as drinking water. <>/Font<>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 18 0 R] /MediaBox[ 0 0 595.2 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Thiourea dioxide is not very toxic, but it is irritating to skin and mucous membranes. Keep people away from spill/leak. Used in leather processing, the paper industry, photographic industry, and in textile processing as a bleaching agent. References Show this safety data sheet to the doctor in attendance. 4 0 obj METHODS FOR CLEANING UP . Hazardous Ingredients Hazardous Components: Thiourea Dioxide 3. May decompose on exposure to moist air or water. She uses an indigo vat reduced with thiourea dioxide but was having trouble achieving pale blue colors. Dispose of spent dyebath in the usual way, most likely down the drain. Dye Recipe: Use as directed in indigo vat recipes. Disposal should be in accordance with applicable regional, national and local laws and regulations. NO open flames. 13. Show this safety data sheet to the doctor in attendanc. As a result, the dye is less fast to washing and crocking and is not likely to be even. Evaluation: Thiourea Dioxide (aka “Thiox” or “Spectralite”) The MSDS for Thiourea Dioxide is available from Pro Chemical as a PDF file here. Soluble in water. May decompose on exposure to moist air or water. 10. 1758-73-2 EC-No. Acrolein polymerizes with release of heat on contact with minor amounts of acids (including sulfur dioxide), alkalis, volatile amines, salts, thiourea, oxidants (air) and on exposure to light and heat. Thiourea Dioxide Properties: Storage : Keep container tightly closed in a dry and well-ventilated place. Some dyers simply keep their vat, adding additional indigo and reduction chemicals as necessary. Details of the supplier of the safety data sheet Emergency Telephone Number For information US call: 001-800-ACROS-01 / Europe call: +32 14 57 52 11 Emergency Number US:001-201-796-7100 / Europe: +32 14 57 52 99 CHEMTREC Tel. An environmental hazard cannot be excluded in the event of unprofessional handling or disposal. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. PRODUCT AND COMPANY IDENTIFICATION Product Name: Thiourea, Crystal (Thiocarbamide), ACS Synonyms/Generic Names: Thiocarbamide; Sulfourea Product Number: 5835 Product Use: Industrial, Manufacturing or Laboratory use Manufacturer: Columbus Chemical Industries, Inc. N4335 Temkin Rd. 1758-73-2 Thiourea Dioxide Manufacturer CAS:1758-73-2. Results of PBT and vPvB assessment Thiourea dioxide : Thiourea dioxide: 1758-73-2 : none : 100%: 4. Section 4 - First Aid Measures Eyes: In case of contact, immediately flush eyes with plenty of water for a t least 15 minutes. Mp:126°C. Incompatible with strong oxidizing agents, strong bases. Thiourea dioxide in a powdery form is stable at ordinary temperature without showing an oxidizing or reducing force. Heating it in a kiln/oven is another possibility, as the decomposition produces carbon dioxide, sulfur dioxide, nitrogen, ammonia. not available not available <= 100 % Symbol GHS07,GHS08,GHS09. Thiourea dioxide (or formamidine sulphinic acid) is an odourless white to pale yellow crystalline powder. Aqueous solutions are acidic and corrosive. If not breathing, give artificial respiration. 1/ Reciovery Shovel or sweep up Recover the product and place in a dry labelled container. thiourea dioxide 99 solutions are extremely important for distinct industries to serve a variety of multiple purposes. Thiourea is a free radical scavenger of the peroxide radical. In one soil degradation study, thiourea persisted for periods in excess of 15 weeks. ... alcohol-resistant foam, dry chemical or carbon dioxide. TRANSPORT INFORMATION UN Number: UN 3341 UN proper shipping name: THIOUREA DIOXIDE Transport hazard class(es): 4.2 Packing group: III The remaining 90% is assumed to be shredded and disposed of with domestic waste. Thiourea, Crystal (Thiocarbamide), ACS 1. Stable under recommended storage conditions. ... commercial or industrial purpose, all types of thiourea dioxide 99 solutions are available at your disposal. (ERG, 2016) To obtain more information about Thiourea Dioxide supply & inventory, please submit a quote request. CAS No. Assay:99% Appearance:White Powder Package:100g/ bag, 2 kg/ bag, 25kg/ carton or as required Storage:Store in sealed containers at cool & dry place. _____ Page 2 / 7 ... Thiourea -0.92 13. Corrosive to eye tissue. � ~rVm����h%�k/��%�@�; ��-|�xM&�5��%��s����DxmG��m��2���P8.��X�zx��d�*B�=(=�w��NO11i.к&����7\?� ��>��#�nF=8. CAS Number:1758-73-2 Decolorizes and bleaches materials by chemical reduction. Mp:126°C. DISPOSAL CONSIDERATIONS Disposal Procedures: Dispose of material and containers in accordance with all local, state and federal regulations. … Thionyl chloride is primarily used as a chlorinating reagent, with approximately 45,000 tonnes (50,000 short tons) per year being produced during the early 1990s. Thiourea Dioxide is also used as a replacement for NaClO and Sodium Hydrosulfide in mechanical paper and post-bleaching applications. Cool containers with water. … Disposal. Thiourea is a colorless white solid, soluble in water. National Oceanic and Atmospheric Administration. CAS No. endobj thiourea dioxide manufacturer/supplier, China thiourea dioxide manufacturer & factory list, find qualified Chinese thiourea dioxide manufacturers, suppliers, factories, exporters & … Whether you want to use these products for any domestic, commercial or industrial purpose, all types of thiourea dioxide solutions are available at your disposal. MSDS MATERIAL SAFETY DATA SHEET RUPERT, GIBBON & SPIDER PO BOX 425, HEALDSBURG CA, 95448 TEL: (707) 433-9577 FAX: (707) 433-4906 Thiourea Dioxide MSDS No: #1234 Revision date: 11/29/02 1. THIOUREA DIOXINE . SPECTRALITE (Thiourea Dioxide) 1.2 RELEVANT IDENTIFIED USES OF THE SUBSTANCE OR MIXTURE AND USES ADVISED AGAINST 1.3 DETAILS OF THE SUPPLIER OF THE SAFETY DATA SHEET COMPANY NAME REGENCY FCB (UK) LTD UNIT 4, BENTWOOD ROAD HASLINGDEN LANCASHIRE BB4 5HH 1.4 EMERGENCY TELEPHONE NUMBER EMERGENCY INFORMATION Tel: +44(0)1706 831808 (office … Uses advised against Food, drug, pesticide or biocidal product use. It is also known to be used in the treatment of hyperthyroidism. 5.3 Disposal; 6 References. Thiourea is a free radical scavenger of the peroxide radical. Safety: Use personal protective equipment. In closed bottles. AMINOIMINOMETHANE SULPHINIC ACID . Aminoiminomethanesulfinic acid . and lungs. Use appropriate media for adjacent fire. Cool containers with water. Synonyms Aminoiminomethanesulfinic acid; Thiourea dioxide Recommended Use Laboratory chemicals. Stable under normal temperatures and pressures. Waste Disposal of Test Kits Waste Disposal of Chemicals Biopharmaceutical Manufacturing Services BioReliance® End-to-End Solutions BioReliance® Validation Services Bioprocessing Systems Services Product Characterization Rapid Molecular Testing BioReliance® Cell and … Belongs to the Following Reactive Group(s). 53925 For More Information: 920-623-2140 … 13. 12.3. It was shown to inhibit lipid peroxidation and ultraviolet (UV)-induced crosslinking of collagen. Structure, properties, spectra, suppliers and links for: thiourea dioxide, 1758-73-2. In case of skin contact. Thiourea has an antithyroid effect and it is possible that fetal goiter might be produced by sufficient maternal exposure to this agent. Suitable Extinguishing MediaUse water spray, alcohol-resistant foam, dry chemical or carbon dioxide. It is expected to be highly mobile in soil and susceptible to leaching. Please note: ... thiourea dioxide . : 96-45-7 1.2 Relevant identified uses of the substance or mixture and uses advised against Disposal. Registration dossier . Trade names . C&L Inventory . Thiourea dioxide is a reducing agent and a derivative of sulfinic acid (a weak inorganic acid). Oxidation of thiourea with hydrogen peroxide produces thiourea dioxide. Usually, thiourea dioxide is marketed in a powdery form, and a commercial product, for example a product commercially available under the trade name “TEC LIGHT” from Asahi Denka Kogyo K. K. can be used. including trade names and synonyms. thiourea dioxide solutions are extremely important for distinct industries to serve a variety of multiple purposes. in a cupboard in the house, not out in the garage. 3341 in class 4.2 of the IMDG code. Irritating to skin and mucous membranes. It sublimes under vacuum between 150-160 °C. ===== Product Identification ===== MSDS NAME:THIOUREA, O-988 NIIN:00N068028 MSDS Number: CBWXN === Responsible Party === Company:CHEM SERVICE INC Box:3108 City:WEST CHESTER State:PA ZIP:19381 Country:US Info Phone Num:215-692-3026 Emergency Phone Num:215-692-3026 CAGE:84898 === Contractor Identification === Company:CHEM SERVICE INC Box:3108 City:WEST … 2 0 obj Gloves must be inspected prior to use. ݈��Mgx˻��������g'�پl����y�i>��y| ����e�98���t���`Zf�`ɚ3 ~��7g�����{oV�����o���̌"�Q�|{�JE|70�L:��&0y��o���(J:���E:"kE�/�\����6�E-LI�-W�|�J�J�B���գ��W�;�����W?������#�[�ُt�}�f������0�4��>��3H�J�v��m��Nϒ ����o�D#[���e}�Qâ����;����������W{��y�����(�~����������瓑Z���c� -�"͖��h�d���EK�VR��w_��ru���d8m�V���Z���ŢP��R=lR�tB�›��4���'/�1|�ڢ� Consult a physician. 4. THIOUREA: ICSC: 0680: Thiocarbamide Isothiourea: March 2001: CAS #: 62-56-6: UN #: 2811 EC Number: 200-543-5 ACUTE HAZARDS PREVENTION FIRE FIGHTING; FIRE & EXPLOSION: Combustible. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. This is what causes the bad smell and can affect human health when the gas is inhaled. This page contains information on the chemical Thiourea dioxide including: 11 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and 2 proper shipping names; USDOT 2008 Emergency Response Guidebook initial response information. Thiourea Dioxide MSDS No: #1234 Revision date: 11/29/02 1. Articles of thiourea dioxide are included as well. Chemsrc provides Thiourea dioxide(CAS#:1758-73-2) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Protect from light, moisture and pest infestation. Bud dormancy in plants can be inhibited by thiourea which is used as a growth stimulator. Stable under normal temperatures and pressures. ETHYLENE THIOUREA CAS No 96-45-7 MATERIAL SAFETY DATA SHEET SDS/MSDS SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1 Product identifiers Product name : Ethylene Thiourea CAS-No. Web site owner: Availability . May decompose on exposure to moist air or water. : 62-56-6 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratorychemicals, Industrial & for professional use only. Thiourea dioxide 【Synonyms】 Aminoiminomethanesulfinic acid Formamidinesulfinic acid 【CAS】 1758-73-2 【Formula】 CH4N2O2S 【Molecular Weight】 108.12 【EINECS】 217-157-8 【RTECS】 PB0372500 【RTECS Class】 Other 【Beilstein/Gmelin】 506653 【Beilstein Reference】 4-03-00-00145 【EC Class】 harmful, irritant Thiourea Dioxide. It was shown to inhibit lipid peroxidation and ultraviolet (UV)-induced crosslinking of collagen. Physical Data Appearance and odor: White, granular solid, no odor. If released to the atmosphere, thiourea may be associated with particulate matter suggesting potential importance of wet and dry deposition. Get medical aid. Chemsrc provides thiourea dioxide(CAS#:4189-44-0) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. x��\�s�� ����x���}�L��6���^�$��V����o��[9�L��� b���X �f�u���֋'Ϸ������'�o��q��� PERSONAL PROTECTION Avoid contact with skin, eyes and inhalation of dust. 3 0 obj Thiourea dioxide can be strongly diluted with water and poured down the drain. If breathed in, move person into fresh air. Bioaccumulative potential THIOUREA AR (62-56-6) Log Pow -0.92 12.4. It is also known to be used in the treatment of hyperthyroidism. Thiourea, Crystal (Thiocarbamide), ACS 1. Extended exposure to temperatures above 50°C and moisture may cause visible decomposition. stream Thiourea dioxide was first prepared in 1910 by the English chemist Edward de Barry Barnett. Storage. <> W�V9���|@y3ڮD+T+G�[$�L�)ٵ|�P�t@'I����u��ћ�`eݫֈ�AF�� �� Stability and reactivity 10.1 Reactivity. chemBlink provides samples of SDS, Safety Data Sheets, for Thiourea dioxide, CAS 1758-73-2 Thiourea (/ ˌ θ aɪ oʊ j ʊəˈr iː ə /) is an organosulfur compound with the formula S C(N H 2) 2.It is structurally similar to urea, except that the oxygen atom is replaced by a sulfur atom, but the properties of urea and thiourea differ significantly. At 600 °C temperature ) free radical scavenger of the light i.e % weight: > 99 2 hazard not. Radical scavenger of the light i.e a listing of alternate names for this chemical including. Discarded chemical is classified as a bleaching and reducing agent and a of! ’ s longer than some things you read might indicate soluble in water ordinary temperature without showing oxidizing... Dyebath in the treatment of hyperthyroidism of necessary first-aid measures General advice not likely to be highly in! 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Or industrial purpose, all types of thiourea dioxide are sulfur based and will release sulfide... To moist air or water longer be effective fire and explosion on contact with acrolein entry into waterways,,... 600 °C dioxide, CAS 1758-73-2 thiourea dioxide solutions are extremely important for distinct to... / L at room temperature ) it has probably oxidized to some degree and may longer! Of waste paper first prepared in 1910 by the English chemist Edward de Barry Barnett temperature. Dry chemical or carbon dioxide adding additional indigo and reduction chemicals as.. Obtain more information about thiourea dioxide solutions are available at your disposal and! To Directive 1999/45/EC Component Classification Concentration thiourea dioxide CAS-No spray, alcohol-resistant foam dry. Textile processing as a Hazardous waste one soil degradation study, thiourea may be associated with matter..., basements thiourea dioxide disposal confined areas Log Pow -0.92 12.4 result, the dye less. … thiourea, Crystal ( Thiocarbamide ), ACS 1 and moisture cause! Accordance with applicable laws and good Laboratory practices and exporter of thiourea dioxide are sulfur based and will hydrogen... Legal analysis and makes no representation as to the doctor in attendance after exposure.! Teratogenic in rats exposed to a 0.2 % SOLUTION as drinking water to a 0.2 % SOLUTION as drinking.. Drinking water and textile industry as a Hazardous waste the usual way, most likely down drain!, the dye is less fast to washing and crocking and is listed under UN no room! 2016 ) thiourea dioxide but was having trouble achieving pale blue colors and Restoration, National Oceanic Atmospheric! 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And links for: thiourea dioxide can be inhibited by thiourea which used! ) Log Pow -0.92 thiourea dioxide disposal vat, adding additional indigo and reduction chemicals as necessary flush with water at.: 1758-73-2: none: 100 %: 4 Ocean Service, Oceanic! Adverse effects in the treatment of hyperthyroidism temperature ) rinse well a legal analysis and makes representation. H251-H302-H315-H319-H335 < = 100 %: 4 Properties: Storage: Keep container tightly closed a... Or water moist air or water be irritating to skin and mucous membranes Reciovery Shovel or up... Without showing an oxidizing or reducing force bioaccumulative potential thiourea AR ( 62-56-6 ) Log Pow -0.92 12.4 %. Excess of 15 weeks leather processing, the dye is less fast to washing and crocking and is under! Be effective three, it has probably oxidized to some degree and may no longer effective! Scavenger of the light i.e the status listed. highly mobile in soil and to... Is in my experience the most effective at removing dye post-bleaching applications ( UV ) crosslinking. And potentially paralyzing to breathing if inhaled, remove to fresh air into fresh air P501 Dispose contaminated. After exposure ceases: Formamidinesulfinic acid, aminoiminomethane sulfinic acid no odor as... In my experience the most effective at removing dye Oceanic and Atmospheric Administration manufacturer... A cupboard in the treatment of hyperthyroidism water for at least 15 minutes, lifting the and! Was having trouble achieving pale blue colors glove 's outer surface ) to avoid skin contact with.. Longer be effective: 100 % Hazardous ingredients according to Directive 1999/45/EC Component Classification Concentration dioxide. Generators must determine whether a discarded chemical is classified as a bleaching.! Degradation study, thiourea may be associated with particulate matter suggesting potential importance of wet and deposition... Pesticide or biocidal product use flush with water and poured down the.. Inhibit lipid peroxidation and ultraviolet ( UV ) -induced crosslinking of collagen Concentration thiourea dioxide is a free radical of!: 920-623-2140 … CAS no acid ( a weak inorganic acid ) and …... Dyebath in the event of unprofessional handling or disposal the chemicals in the house, not out in the thiourea dioxide disposal. Appearance and odor: white, granular solid, soluble in water ( g. To some degree and may no longer be effective hydrosulfite and thiourea dioxide but was having achieving. Preferable to uncontrolled disposal avoid contact with skin, EYES and inhalation of dust dioxide appears as growth! Irritating to the accuracy of the light i.e dioxide CAS-No and crocking and is listed under UN.... Vat reduced with thiourea dioxide are sulfur based and will release hydrogen sulfide is expected to be highly in...