단일 과인산염

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H318：눈에 심한 손상을 일으킴

• 예방조치문구

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

  P310：즉시 의료기관(의사)의 진찰을 받으시오. 삼켰다면 즉시 의료기관(의사)의 도움을 받으시오.

단일 과인산염 화학적 특성, 용도, 생산

• 농업용

  Normal superphosphate is made by treating ground rock phosphate with sulphuric acid.
  The above reaction yields monocalcium phosphate and gypsum.
  For the manufacture of normal superphosphates, a continuous process rather than a batch process is in vogue. Some of these processes are named after their inventors, for example, the Tennessee Valley Authority process, the Maxitz-Standard Den process, the Broadfield Den process and the Kuhlman Den process.
  The treated mass is sent to a curing shed and stored for 3 to 4 weeks for curing and final drying. The dried product is excavated, milled, screened, and either bagged for marketing or sent for granulation.
  Granulation is done in a granulator in the presence of steam and the finished product is then bagged. It contains 16 to 21% phosphorus pentoxide (P₂O₅) in a watersoluble form. In addition, it contains 11 to 12% sulphur as calcium sulphate.

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