눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P312
불편함을 느끼면 의료기관(의사)의 진찰을 받으시오.
P321
(…) 처치를 하시오.
P332+P313
피부 자극이 생기면 의학적인 조치· 조언을 구하시오.
P337+P313
눈에 대한 자극이 지속되면 의학적인 조치· 조언를 구하시오.
P403+P233
용기는 환기가 잘 되는 곳에 단단히 밀폐하여 저장하시오.
P405
밀봉하여 저장하시오.
P501
...에 내용물 / 용기를 폐기 하시오.
NFPA 704
0
2
0
Rosin C화학적 특성, 용도, 생산
일반 설명
Rosin, formerly called colophony, is a solid form of resin obtained from several pine trees extensively found in Asia, Europe and North America and to a lesser extent from other conifers conifers. It is prepared by cutting a long slice in the tree to allow exudation and to collect the liquid resin in containers. Afterwards the liquid resin is steam heated to remove volatile terpene and turpentine and leaving gum rosin as residue. It is semi-transparent and varies in color from yellow to black. It chiefly consists of different organic acids, among those abietic acid (C19H29COOH) is the most important. Rosin is a brittle and friable resin, with a faint piney odor; the melting-point varies with different specimens, some being semi-fluid at the temperature of boiling water, while others melt between 100°C to 120°C. It is very flammable, burning with a smoky flame. It is soluble in alcohol, ether, benzene and chloroform. Rosin combines with caustic alkalis to yield salts called rosinates or pinates that are known as rosin soaps. In addition to its extensive use in soap making, rosin is largely employed in making inferior varnishes, sealing-wax and various adhesives.
