Dichloroisocyanuric acid, solid is a white crystalline solid with an odor of chlorine. The material itself is noncombustible but if contaminated with a combustible material ignition can result. It will accelerate the burning of combustible materials. Contact with ammonium compounds or hydrated salts can cause a very vigorous chemical reaction. It may vigorously react with small quantities of water releasing chlorine gas. Prolonged exposure to fire or heat of the material may result in the vigorous decomposition of the material and the rupturing of its containers. Material containing less than 39 percent available chlorine will undergo reactions as described above though it may be longer to initiate and the resulting reaction may not be as vigorous. It is used as a dry bleach in household cleaning compounds and swimming pool disinfectants.
颜色/状态:
White, crystalline powder
气味:
Chlorine odor
溶解度:
In water, 227 g/L at 25 °C
蒸汽压力:
2.0X10-9 mm Hg at 25 °C (est)
自燃温度:
225 °C (473 °F) at 1013 hPa
分解:
Decomposes exothermically at 464 °F (240 °C). Anhydrous material has a significantly lower decomposition temp.
Both s-triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-trichloro- and s-triazine-2,4,6(1H,3H,5H)-trione, 1,3-dichloro-, sodium salt are unstable in the body (particularly the stomach) because the available chlorine is rapidly reduced. Cyanuric acid (or its monosodium salt) is the degradation product from both products.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
相互作用
卤代异氰脲酸酯与3-异噻唑啉酮衍生物共用时,展现出生物杀生的协同增效。
Halogenated isocyanurates exhibit biocidal synergism when used with 3-isothiazolone derivatives.
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Organic acids and related compounds/
Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist respirations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Activated charcoal is not effective ... . Do not attempt to neutralize because of exothermic reaction. Cover skin burns with dry, sterile dressings after decontamination ... . /Organic acids and related compounds/
Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Early intubation, at the first sign of upper airway obstruction, may be necessary. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Organic acids and related compounds/
/LABORATORY ANIMALS: Acute Exposure/ No irritation on the intact skin of /albino/ rabbits was observed after application of sodium (potassium) dichloroisocyanurate in the form of dry powder for 24 hr. /Sodium dichloroisocyanurate/
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
An HPLC Method with UV Detection, pH Control, and Reductive Ascorbic Acid for Cyanuric Acid Analysis in Water
作者:Ricardo Cantú、Otis Evans、Fred K. Kawahara、Jody A. Shoemaker、Alfred P. Dufour
DOI:10.1021/ac0005868
日期:2000.12.1
Every year over 250 million pounds of cyanuric acid (CA) and chlorinated isocyanurates are produced industrially. These compounds are standard ingredients in formulations for household bleaches, industrial cleansers, dishwasher compounds, general sanitizers, and chlorine stabilizers. The method developed for CA using high-performance liquid chromatography (HPLC) with UV detection simplifies and optimizes certain parameters of previous methodologies by effective pH control of the eluent (95% phosphate buffer: 5% methanol, v/v) to the narrow pH range of 7.2−7.4. UV detection was set at the optimum wavelength of 213 nm where the cyanuric ion absorbs strongly. Analysis at the lower pH range of 6.8−7.1 proved inadequate due to CA keto−enol tautomerism, while at pHs of <6.8 there were substantial losses in analytical sensitivity. In contrast, pHs of >7.4 proved more sensitive but their use was rejected because of CA elution at the chromatographic void volume and due to chemical interferences. The complex equilibria of chlorinated isocyanurates and associated species were suppressed by using reductive ascorbic acid to restrict the products to CA. UV, HPLC−UV, and electrospray ionization mass spectrometry techniques were combined to monitor the reactive chlorinated isocyanurates and to support the use of ascorbic acid. The resulting method is reproducible and measures CA in the 0.5−125 mg/L linear concentration range with a method detection limit of 0.05 mg/L in water.
每年工业生产的氰尿酸(CA)和氯化异氰尿酸盐超过 2.5 亿磅。这些化合物是家用漂白剂、工业清洁剂、洗碗机化合物、普通消毒剂和氯稳定剂配方中的标准成分。通过对洗脱液(95% 磷酸盐缓冲液:5% 甲醇,v/v)的 pH 值进行有效控制,将其控制在 7.2-7.4 的较窄 pH 值范围内,利用高效液相色谱法(HPLC)和紫外检测法对 CA 的某些参数进行了简化和优化。紫外检测的最佳波长为 213 nm,三聚氰酸离子在此波长处吸收强烈。在较低的 pH 值范围(6.8-7.1)下,由于 CA 酮烯醇的同分异构现象,分析结果证明是不充分的,而在 pH 值小于 6.8 时,分析灵敏度会大幅下降。相比之下,pH 值大于 7.4 的灵敏度更高,但由于 CA 在色谱空隙体积处洗脱以及化学干扰的原因,这种方法被拒绝使用。通过使用还原性抗坏血酸来限制 CA 产物,从而抑制了氯化异氰尿酸盐和相关物种的复杂平衡。紫外光谱、高效液相色谱-紫外光谱和电喷雾离子化质谱技术相结合,用于监测反应性氯化异氰尿酸盐,并支持抗坏血酸的使用。该方法重现性好,可在 0.5-125 毫克/升的线性浓度范围内测量 CA,方法检测限为 0.05 毫克/升。
A novel reaction of some enolisable ketones not involving the rate-determining enolisation step. Kinetics of the reaction of ketones with trichloroisocyanuric acid in the presence of added chloride ion in acid medium
作者:Patapati Subu Radhakrishnamurti、Nabeen Kumar Rath、Rama Krushna Panda
DOI:10.1039/p29870000517
日期:——
Kinetics of the reaction between some enolisable ketones (S) and trichloroisocyanuric acid (TClCA) in aqueous acid–acetic acid medium at 35 °C follow pseudo-zero-order and pseudo-first-order disappearance of [TClCA]0 in the absence and the presence of added Cl–, respectively. The rate constants for the latter system exhibit a linear dependence each on [S]0 and [H+], and an increasing and limiting dependence
Stabilizers based on 1-aza-2,2,6,6 tetramethybicyclo [3.1.0]hexane
申请人:Clariant GmbH
公开号:US05972248A1
公开(公告)日:1999-10-26
The present invention relates to novel stabilizers of the formula (I) ##STR1## in which the substituents have the meaning defined in the description. These novel stabilizers are particularly suitable for stabilizing organic material, such as plastics, oils, paints and coatings, against degradation by light, radiation, heat and oxygen.
Tetraazaperopyrene compounds and their use as n-type semiconductors
申请人:BASF SE
公开号:EP2521195A1
公开(公告)日:2012-11-07
A tetraazaperopyrene compound of formula (I):
wherein:
R1, R2, R3, R4, R5, R6, R7, R8 at each occurrence, independently are selected from H, Cl and Br, with the proviso that at least one of R1, R2, R3, R4, R5, R6, R7 and R8 is Cl or Br,
R9, R10, at each occurrence, independently are selected from H, a C1-30 alkyl group, a C1-30 haloalkyl group, a C6-14 aryl group, a heteroaryl group having 5 to 14ringatoms, and a C7-20 arylalkyl group, wherein aryl, heteroaryl and arylalkyl can be optionally substituted with one or more halogen, C1-4 haloalkyl, -CN, -NO2, -CHO, -COOH, -CONH2, -CO(C1-14 alkyl), -COO(C1-14 alkyl), -CONHC(C1-14 alkyl) and -CON(C1-14 alkyl)2 groups.
photoresponse and low dark or noise current with a fast response speed under a low bias in polymer photodetectors, this study demonstrates the potential of incorporating the polymer with singlet open-shell groundstate in the active layer to enhance the performance of organic photodetectors.