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ShouGuang XinSheng Chemistry Co., Ltd product details.
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Thiourea dioxide
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:: Product informations
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Name : Thiourea dioxide
Product Added on : 10.12.2009
Main Category : Pulp
Alternative Category : none
Type of product : New
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:: Product details & description
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I. Description of the product
Thiourea Dioxide (TDO or TUD) is also named as Formamidine Sulfinic Acid. Its
appearance is white crystal powder. Thiourea Dioxide is a stable compound with no strong
reducing and oxidizing ability, and its dissolvability is 26.7g/l (20 ¡æ)£¬while its PH is 5.0 in
saturated solution. TDO appears terrific stable even in 20¡£C -30¡£C solution, but when it is
under heat or catalysesing by alkali, it decomposes gradually to produce sulfoxylic acid
through formamidine sulfinic acid to exhibit a reducing action
II. Applications of the Product
TDO is a new kind of reducing agent that used as exchange of sodium hydrosulfite. It is
widely used in textile and paper making industry. This product is also used in leather
processing industry, paper, pulp and board industry, photographic industry, bleaching and
reducing agents. This product is also a component of decolorisation agents. In
macromolecule material industry, it is used as catalysis agent and stabilizer of resinic
producing, and it is also used in organic synthesization of sensitizing material, and
medicine, medical, spicery materials in fine chemicals, and also can be applied in the
recycling and separating of heavy metals.
III. Quality Terms
Physical & Chemical Features
Name Thiourea Dioxide
Byname Formamidine Sulfinic Acid
Appearance & Odor White Crystal, odorless
Molecular Formula £¨NH2£©2CSO2
Molecular Weight 108.12
Melting Point 126¡æ
PH 4 £¨1% Solution£©
CAS NO. 1758-73-2 or 4189-44-0
Dangerous Goods Class 4.2
Specific Gravity 1.68
Specifications
Thiourea dioxide£¨%£© ¡Ý99%
Thiourea£¨%£© ¡Ü0.1%
Moisture£¨%£© ¡Ü0.05%
Iron (Fe) £¨%£© ¡Ü10PPM
Sulphate£¨%£© ¡Ü0.17%
Packing
25kgs kraft paper compound plastic bags
25kgs plastic bags (with two inner layers)
50kgs fiber drums
80kgs, 200kgs, 500kgs, 1000kgs containing bags
according to the buyer¡¯s request
VI. Storage Points for Attention
Store in a cool (below 30 ¡ãC ), dry, well ventilated area away from all source of ignition and
out of direct sunlight. Keep away from incompatible materials. Keep containers tightly
closed. Do not store in unlabeled or mislabeled containers. Protect from moisture. Do not
store near combustible materials. Keep containers well sealed, seal only with original vent
cap. Ensure pressure relief and adequate ventilation. Store separately from organics and
reducing materials. Avoid contamination which may lead to decomposition.
V. Usage Points for Attention
Avoid contact with eyes, skin, and clothing. Use with adequate ventilation. Do not swallow.
Avoid breathing vapors, mists, or dust. Do not eat, drink, or smoke in work area. Prevent
contact with combustible or organic materials. Label containers and keep them tightly
closed when not in use. Wash thoroughly after handling.
VI. First-aid Measures
*Inhalation- Remove affected person to fresh air. Do not use mouth-to mouth resuscitation. Seek medical attention if effects persist.
*Eye contact-Flush eyes with running water for at least 15 minutes with eyelids held open. Seek specialist advice.
*Skin contact-Wash affected skin with soap and mild detergent and large amounts of water.
*Ingestion- Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen.
*Do not use mouth-to-mouth resuscitation. Seek medical service immediately
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:: Other pictures of Thiourea dioxide
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:: This product is published by
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ShouGuang XinSheng Chemistry Co., Ltd
ShouGuang city ShanDong Province, China
262702 ShouGuang ShanDong
China
Tel. 0086-536-5285177
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ShouGuang XinSheng Chemistry Co., Ltd, publishing this product, declare that this product Thiourea dioxide is produced and/or sold by ShouGuang XinSheng Chemistry Co., Ltd.
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