Potassium chlorate appears as a white crystalline solid. Forms a very flammable mixture with combustible materials. Mixture may be explosive if combustible material is very finely divided. Mixture may be ignited by friction. Contact with strong sulfuric acid may cause fires or explosions. May spontaneously decompose and ignite when mixed with ammonium salts. May explode under prolonged exposure to heat or fire. Used to make matches, paper, explosives, and many other uses.
颜色/状态:
Colorless, lustrous crystals or white granules or powder
味道:
Cooling, saline taste
沸点:
400 °C (decomposes)
溶解度:
8.61 g/100 g water at 25 °C
稳定性/保质期:
Stable under ordinary conditions of use and storage.
分解:
Decomposes on heating above 400 °C, on contact with strong acids producing toxic fumes including chlorine dioxide, chlorine fumes and producing oxygen.
... Sprague-Dawley rats, four males per group, were dosed orally with 5 mg/L K(36)ClO3 (0.85 uCi) ... The administered ClO3- was eliminated as approximately 20% chloride, 4.0% chlorite, and 13.0% chlorate.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
暴露途径
该物质可以通过摄入和吸入灰尘被身体吸收。
The substance can be absorbed into the body by ingestion and by inhalation of dust.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
吸入症状
咳嗽。喉咙痛。
Cough. Sore throat.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
皮肤症状
Redness.
Redness.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
眼睛症状
红斑。疼痛。
Redness. Pain.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
Abdominal pain. Blue lips, fingernails and skin. Confusion. Convulsions. Diarrhoea. Dizziness. Headache. Nausea. Shortness of breath. Sore throat. Unconsciousness. Vomiting. Symptoms may be delayed.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
Two groups of Sprague-Dawley rats, four males per group, were dosed orally with 5 mg/L K(36)ClO3 (0.85 uCi) ... . For one group, blood samples were obtained by retro-orbital bleeding at various times for up to 48 hr after dosing. The animals were killed after 72 hr, with blood samples taken and various tissues collected. The (36)Cl content of the tissues was determined by liquid scintillation spectrometry. The second group of animals was placed in metabolism cages following dosing, with expired air and fecal and urine samples measured for up to 72 hr after dosing. The radioactivity of Cl-, ClO2-, and ClO3 was measured. For the first group of animals, a peak (36)Cl plasma concentration was reached after 30 min. Chlorate elimination from the plasma was two-phase; the rapid phase of elimination, the a-phase, had a half-life (t1/2) of 6 hr, and the slower phase of elimination, the beta-phase, had a t1/2 of 36.7 hr. Following ClO3- administration, measured radioactivity was greatest in the plasma, followed by the whole blood, stomach, testes, lungs, kidneys, skin, duodenum, spleen, brain, packed cells, ileum, carcass, liver, and bone marrow. The amount of (36)Cl in the plasma was approximately 2.0 ng/g, and in the bone marrow, less than 0.5 ng/g. For the second group of animals, about 43% of the chlorate was excreted in 72 hr; 39% of the (36)Cl was recovered in the urine and feces after 24 hr. No radioactivity was recovered in expired air. The administered ClO3- was eliminated as approximately 20% chloride, 4.0% chlorite, and 13.0% chlorate.
Oral administration of 3 mL (5 mg/L) to rats have shown: absorption T1/2: 1.74 hr, elimination T1/2: 26.7 hr. Distribution mainly in blood, excretion in feces and urine: 43% of initial dose in 72 hr. Increased formation of chloroform in the liver.
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989
Oxidation of Triorganosilanes and Related Compounds by Chlorine Dioxide
作者:S. A. Grabovskiy、N. N. Kabal’nova
DOI:10.1134/s1070363221120069
日期:2021.12
mechanism explaining the formation of products and the observed regularities of the oxidation of silanes with chlorine dioxide has been proposed. A thermochemical analysis of some possible pathways in the gas phase using methods G4, G3, M05, and in an acetonitrile solution by the SMD-M05 method was carried out. The oxidation process can occur both with the participation of ionic and radical intermediates
The effect of interlayer anions on the photoluminescence of layered rareearth hydroxides was investigated with the rareearth (RE)-doped layered gadolinium hydroxynitrate as a representative base matrix for efficient and stable anion-exchange reactions. Eu3+, Tb3+, and Ce3+ were employed as RE activator ions for red, green, and blue emissions, respectively. The excitation and emission behaviors of
An assembly comprising a flange and a channel-shaped strip
申请人:GENCORP INC.
公开号:EP0017320A1
公开(公告)日:1980-10-15
A flange (18) has projections (16) which engage lips (14) on a sealing strip (2) to attach the strip (2) to the flange (18). The strip (2) has two side portions (10) extending from a base (4) and the lips (14) are formed on the inner surface of the side portions (10). The free edge (20) of the flange (18) presses against a diaphragm (6) spaced by a void (8) from the base (4). As a result, the pressure of the diaphragm (6) on the flange (18) forces the projections (16) into abutment with the lips (14). As a result, the flange (18) and the strip (2) are securely connected so that a considerable force is required to remove the strip (2) from the flange (18) thereby preventing accidental separation. A tubular member (12) may be attached to one of the side portions (10) against which abuts an object being sealed to the flange.
Bioinspired Complex-Nanoparticle Hybrid Catalyst System for Aqueous Perchlorate Reduction: Rhenium Speciation and Its Influence on Catalyst Activity
作者:Jinyong Liu、Jong Kwon Choe、Yin Wang、John R. Shapley、Charles J. Werth、Timothy J. Strathmann
DOI:10.1021/cs501286w
日期:2015.2.6
reaction kinetics, X-ray photoelectron spectroscopy, and experiments with homogeneous model Re complexes are combined to obtain insights into the catalytic reaction mechanisms and the influence of Re speciation on catalyst reactivity with ClO4–. Redox cycling between hoz-coordinated ReV and ReVII species serves as the main catalytic cycle for ClO4– reduction. Under reducing conditions, approximately half
Time-resolved infrared absorption studies of the solvent-dependent vibrational relaxation dynamics of chlorine dioxide
作者:Joshua C. Bolinger、Teresa J. Bixby、Philip J. Reid
DOI:10.1063/1.2000234
日期:2005.8.22
We report a series of time-resolved infrared absorption studies on chlorine dioxide (OClO) dissolved in H2O, D2O, and acetonitrile. Following the photoexcitation at 401 nm, the evolution in optical density for frequencies corresponding to asymmetric stretch of OClO is measured with a time resolution of 120+/-50 fs. The experimentally determined optical-density evolution is compared with theoretical