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Chemwatch:4650.10 Page 9 of 15 Issue Date:11/16/2017 Version No:6.1.1.1 Phosphate Test Solution#1 Print Date:06/21/2019 Upper Explosive Limit Surface Tension(dyn/cm (%) Not Applicable or mN/m) Not Available Lower Explosive Limit Volatile Component (%) (%Vol)Not Applicable Not Available Vapour pressure(kPa) Not Available Gas group Not Available Solubility in water Miscible pH as a solution(1%) Not Available Vapour density(Air=1) Not Available VOC g/L Not Available SECTION 10 STABILITY AND REACTIVITY Reactivity See section 7 Chemical stability , Contact with alkaline material liberates heat Possibility of hazardous See section 7 reactions Conditions to avoid See section 7 Incompatible materials See section 7 Hazardous See section 5 decomposition products SECTION 11 TOXICOLOGICAL INFORMATION Information on toxicological effects 512acida Inhaled Exposure to high concentrations causes bronchitis and is characterised by the onset of haemorrhagic pulmonary oedema. Ingestion of acidic corrosives may produce circumoral burns with a distinct discolouration of the mucous membranes of the mouth,throat and oesophagus.Immediate pain and difficulties in swallowing and speaking may also be evident. Oedema of the epiglottis may produce respiratory distress and possibly,asphyxia.Nausea,vomiting,diarrhoea and a pronounced thirst may occur.More severe exposures may produce a vomitus containing fresh or dark blood and large shreds of mucosa.Shock,with marked hypotension,weak and rapid pulse,shallow respiration and clammy skin may be Ingestion symptomatic of the exposure.Circulatory collapse may,if left untreated,result in renal failure.Severe cases may show gastric and oesophageal perforation with peritonitis,fever and abdominal rigidity.Stricture of the oesophageal,gastric and pyloric sphincter may occur as within several weeks or may be delayed for years.Death may be rapid and often results from asphyxia,circulatory collapse or aspiration of even minute amounts.Delayed deaths may be due to peritonitis, severe nephritis or pneumonia.Coma and convulsions may be terminal. Accidental ingestion of the material may be damaging to the health of the individual. Skin contact with acidic corrosives may result in pain and burns;these may be deep with distinct edges and may heal slowly with the formation of scar tissue. Skin Contact Entry into the blood-stream through,for example,cuts,abrasions,puncture wounds 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. When applied to the eye(s)of animals,the material produces severe ocular lesions which are present twenty-four hours or more after instillation. Direct eye contact with acid corrosives may produce pain,lachrymation,photophobia and burns.Mild burns of the Eye epithelia generally recover rapidly and completely.Severe burns produce long-lasting and possible irreversible damage. The appearance of the burn may not be apparent for several weeks after the initial contact.The cornea may ultimately become deeply vascularised and opaque resulting in blindness. Repeated or prolonged exposure to acids may result in the erosion of teeth,inflammatory and ulcerative changes in the mouth and necrosis(rarely)of the jaw.Bronchial irritation,with cough,and frequent attacks of bronchial pneumonia may ensue.Gastrointestinal disturbances may also occur.Chronic exposures may result in dermatitis and/or conjunctivitis. The impact of inhaled acidic agents on the respiratory tract depends upon a number of interrelated factors.These include physicochemical characteristics,e.g.,gas versus aerosol;particle size(small particles can penetrate deeper into the lung);water solubility(more soluble agents are more likely to be removed in the nose and mouth).Given the general lack of information on the particle size of aerosols involved in occupational exposures to acids,it is difficult to identify their principal deposition site within the respiratory tract.Acid mists containing particles with a diameter of up to a few micrometers will be deposited in both the upper and lower airways.They are irritating to mucous epithelia,they cause Chronic dental erosion,and they produce acute effects in the lungs(symptoms and changes in pulmonary function).Asthmatics appear to be at particular risk for pulmonary effects. Repeated or long-term occupational exposure is likely to produce cumulative health effects involving organs or biochemical systems. Practical experience shows that skin contact with the material is capable either of inducing a sensitisation reaction in a substantial number of individuals,and/or of producing a positive response in experimental animals. Occupational exposure to strong inorganic acid mists containing sulfuric acid is designated by IARC to be carcinogenic, Continued...