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西亚试剂优势供应上万种化学试剂产品，欢迎各位新老客户咨询、选购！
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西亚试剂 —— 品质可靠，值得信赖
O-CHLOROBENZOIC ACID
| Flammability | 1 | |
| Toxicity | 2 | |
| Body Contact | 2 | |
| Reactivity | 1 | |
| Chronic | 2 | |
| SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4 | ||
Preservative for glues and paints. Intermediate in the manufacture of fungicides and dyes.
Dye
C7-H5-Cl-O2, Cl-C6H4-CO2H, "benzoic acid, o-chloro-", "benzoic acid, o-chloro-",
"benzoic acid, 2-chloro-", "benzoic acid, 2-chloro-", "ortho-chlorobenzoic acid", o-
carboxychlorobenzene, o-carboxychlorobenzene, chlorobenzene, chlorbenzene, o-chlorbenzene,
o-chlorbenzene, 2-chlorbenzene, 2-chlorbenzene
Irritating to eyes, respiratory system and skin.
Accidental ingestion of the material may be damaging to the health of the individual. Ingestion of chlorobenzoic acids has lead, after a latency of several hours, to pallor, cyanosis, (with methaemoglobin) and collapse. Symptoms are strikingly similar to those produced after aniline poisoning. The substance and/or its metabolites may bind to hemoglobin inhibiting normal uptake of oxygen. This condition, known as "methemoglobinemia", is a form of oxygen starvation (anoxia). Symptoms include cyanosis (a bluish discoloration skin and mucous membranes) and breathing difficulties. Symptoms may not be evident until several hours after exposure. At about 15% concentration of blood methemoglobin there is observable cyanosis of the lips, nose and earlobes. Symptoms may be absent although euphoria, flushed face and headache are commonly experienced. At 25-40%, cyanosis is marked but little disability occurs other than that produced on physical exertion. At 40-60%, symptoms include weakness, dizziness, lightheadedness, increasingly severe headache, ataxia, rapid shallow respiration, drowsiness, nausea, vomiting, confusion, lethargy and stupor. Above 60% symptoms include dyspnea, respiratory depression, tachycardia or bradycardia, and convulsions. Levels exceeding 70% may be fatal.
This material may produce eye irritation in some persons and produce eye damage 24 hours or more after instillation. Moderate inflammation may be expected with redness; conjunctivitis may occur with prolonged exposure.
The material may cause mild but significant inflammation of the skin either following direct contact or after a delay of some time. Repeated exposure can cause contact dermatitis which is characterized by redness, swelling and blistering. Skin contact is not thought to have harmful health effects, however the material may still produce health damage following entry through wounds, lesions or abrasions. Entry into the blood-stream, through, for example, cuts, abrasions or lesions, may produce systemic injury with harmful effects. Examine the skin prior to the use of the material and ensure that any external damage is suitably protected.
The material can cause respiratory irritation in some persons. The body's response to such irritation can cause further lung damage. Persons with impaired respiratory function, airway diseases and conditions such as emphysema or chronic bronchitis, may incur further disability if excessive concentrations of particulate are inhaled.
Long-term exposure to respiratory irritants may result in disease of the airways involving difficult breathing and related systemic problems. Limited evidence suggests that repeated or long-term occupational exposure may produce cumulative health effects involving organs or biochemical systems. Long term exposure to high dust concentrations may cause changes in lung function i.e. pneumoconiosis; caused by particles less than 0.5 micron penetrating and remaining in the lung. Prime symptom is breathlessness; lung shadows show on X-ray.
