1918-05-15, English, Article, Journal or magazine article edition: CHEMICAL POISONING. (15 May 1918) Burke, Keast, 1896-1974.

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CHEMICAL POISONING. (15 May 1918)
 
Bookmark: https://trove.nla.gov.au/version/264322415
Physical Description
  • 817 words
  • article
  • Journals
  • Magazines
Published
  • xna, Baker &​ Rouse, 1918-05-15
Language
  • English

Edition details

Title
  • CHEMICAL POISONING. (15 May 1918)
Appears In
  • Australasian photo-review., v.25, no.5, 1918-05-15
Author
  • Burke, Keast, 1896-1974.
Published
  • xna, Baker &​ Rouse, 1918-05-15
Physical Description
  • 817 words
  • article
  • Journals
  • Magazines
Part Of
  • Australasian photo-review.
  • Vol. 25 No. 5 (15 May 1918)
Subjects
Summary
  • CHEMICAL POISONING. Some people are very susceptible to the irritating effect produced on the skin by coal tar developers. Others working under the same conditions are not at all affected. The results in all cases are about the same and the same preventive measures may be used. From a digest of all the available information on the subject it appears pears that the chemical poisoning is secondary ondary to the action of the alkali in the developer on the skin. The alkali partially dissolves the outer skin and causes deep cracks to form. This exposes the under layers of the skin to attack by the developing agent and its oxidation products. The following facts have been fairly well established. Potassium Carbonate in a developer veloper is slightly less liable to cause the trouble than Sodium Carbonate. This is because Potassium Carbonate absorbs moisture ture from the air and remains in solution, while Sodium Carbonate dries to a powdery form on the hands and causes the skin to crack. The use of Potassium Carbonate, however, does not prevent the trouble. A non-alkaline developer like Amidol or Acrol does not give much trouble, although a few cases of Amidol poisoning are on record. In this case also the drying of the Sodium Sulphite on the hands has the effect of causing the skin to crack in the same way as Sodium Carbonate. It is very necessary, therefore, when working with chemical solutions to thoroughly oughly remove them from the hands by washing with water before crystallisation takes place within the pores of the skin. The reason why most poisoning is caused by developers is because it is very difficult to remove alkali from the skin by washing, especially if the skin is at all cracked. By bathing the hands in a weak solution of acid the alkali is neutralised and the salt thus formed is very readily removed by washing. Bathing the hands in weak acid at intervals tervals during development is almost a certain preventive and several cases are recorded corded where a cure has been effected by rubbing the hands well several times a day with the following : Acetic Acid No. 8 1 oz. Water 2 ozs. Salt 1 tblsp. A two per cent, solution of Hydrochloric loric acid to be used in the same way, is also recommended. If an acid stop bath is used between developing veloping and fixing, bathing the hands is done unconsciously, and several persons are known to have been cured in this way. It is very important, however, to thoroughly wash the hands in water after treatment with the acid. If the hands are badly stained with the developing agent the stain should be removed, moved, otherwise it may act as a continuous ous irritant when the skin is cracked and its pores are open. This may be done by washing the hands in a permanganate solution tion and subsequently removing the stain with oxalic acid. The permanganate will cause a smarting sensation for the time being, but this is counteracted by the oxalic alic acid, which removes both the oxidised developing agent and the permanganate stain and leaves the irritated skin in a better condition for healing. The following ing strengths of solutions should be used : /​ A Potassium Permanganate . . 55 grs. Sulphuric Acid (concentrated) 1 dram Water 60 ozs. B Oxalic Acid 1 oz. Water 50 ozs. After treatment with oxalic acid the hands should be washed thoroughly. Once the skin is clean and free from irritating ritating chemicals a cold cream or ointment ment may effectively be used to prevent access of the developer to the under layers of the skin. Healing is sometimes aided by an ointment of the following nature. Ichthyol 1 oz. Resorcin 1 oz. Glycerine 1 oz. Zinc Oxide 2 oz. White paraffin ointment .... 6 ozs. To summarise, the best preventive is to wash the hands thoroughly immediately after removing them from the chemical solutions. When developing, the hands should be frequently rinsed in the acid stop bath or in the wash water, in order to prevent, vent, at any time, the crystallisation of the solution on the hands. Before drying, the hands should be washed with a weak acid solution and thoroughly rinsed for one, or two minutes in plain water. The best cure would seem to be a thorough ough cleansing of the hands, which will remove any trace of the chemical which causes the irritation and the use of an oily ointment which will fill the pores of the skin and prevent the poison from again reaching the sensitive under layers of the skin. The use of rubber gloves is advisable in effecting a cure, as they afford the best possible protection. In all cases it is advisable visable to consult a physician, as the condition tion of one’s health has a general bearing on local affections of this nature. —Studio Light.
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Language
  • English
Identifier
  • 770.5 (DDC)

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