인산 칼슘, 삼염기성

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• 그림문자(GHS)

  

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  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P271：옥외 또는 환기가 잘 되는 곳에서만 취급하시오.

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인산 칼슘, 삼염기성 MSDS

• Calcium phosphate

인산 칼슘, 삼염기성 화학적 특성, 용도, 생산

• 순도시험

    (1) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 4.0ppm 이하이어야 한다.

    (2) 납 : 「메타인산나트륨」의 순도시험 (2)에 따라 시험한다(4.0ppm 이하).

    (3) 카드뮴 : 「메타인산나트륨」의 순도시험 (3)에 따라 시험한다(1.0ppm 이하).

    (4) 수은 : 이 품목을 수은시험법에 따라 시험할 때, 그 양은 1.0ppm 이하이어야 한다.

    (5) 불소화물 : 이 품목 1g을 정밀히 달아 「구연산칼슘」의 순도시험 (8)에 따라 시험한다(50ppm 이하).

• 확인시험

    (1) 이 품목을 질산은시액으로 적시면 황색을 나타낸다.

    (2) 이 품목 0.1g에 초산 5mL를 가하여 끓이고 식힌 다음 여과하여 여액에 수산암모늄시액 5mL를 가하면 백색의 침전이 생긴다.

• 정량법

    이 품목 200mg을 정밀히 달아 물 25mL 및 묽은염산 10mL 혼합액을 가하여 녹인다. 필요하면 여과하고 침전물을 묽은염산 1mL를 가하여 녹인다. 이어 50℃로 유지하면서 몰리브덴산암모늄 시액 75mL를 가한 다음 때때로 저어 주면서 30분간 가온한다. 물 30～40mL로 침전물을 1～2회 세척한다. 침전물을 여과지에 옮기고 최종 세척액이 리트머스시험지로 산성이 나타나지 않을 때까지 질산칼륨용액(1→1,000)으로 씻어낸다. 침전물과 여과지를 용기에 옮기고 1N 수산화나트륨용액 40mL을 가하여 침전물이 녹을 때까지 저어준 다음 과량의 알칼리를 1N 황산으로 적정한다.(지시약 : 페놀프탈레인 시액). 

  1N 수산화나트륨용액 1mL=6.743mg Ca₃(PO₄)₂

• 개요

  Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. It occur abundantly in nature in several forms and are the principal minerals for the production of phosphate fertilizers and for a range of phosphorus compounds. For example, the tribasic variety (precipitated calcium phosphate), Ca3(PO4)2, is the principal inorganic constituent of bone ash. The acid salt Ca(H2PO4)2, produced by treating mineral phosphates with sulfuric acid, is employed as a plant food and stabilizer for plastics. It is a natural constituent of mammals, and it is a component of bone replacement transplants in much higher amounts with no toxicological problems.
  
  Calcium phosphates are the largest group of artificial bone graft substitutes. This is mainly due to their close resemblance to the mineral components of bone. This Product can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium (Sr-90) in the gastrointestinal (GI) tract.

• 화학적 성질

  Tricalcium phosphate is white solid, insoluble in water; reactive with silicon oxide and carbon at electric furnace temperature yielding phosphorus vapor; reactive with H2SO4 to form, according to the proportions used, phosphoric acid, or dicalcium hydrogen phosphate, CaHPO4, white solid, insoluble; or calcium dihydrogen phosphate, Ca(H2PO4)2·H2O, white solid, soluble. pKsp = 28.70.

• 물리적 성질

  White amorphous powder; refractive index 1.63; density 3.14 g/cm³; melts at 1,670°C; insoluble in water; KSP 1.0x10^-25; soluble in acids.

• 출처

  Tribasic calcium phosphate occurs in nature as minerals, oxydapatite, whitlockite, voelicherite, apatite, phosphorite. It has many industrial applica tions. Some are similar to the monobasic and dibasic salts. It is used in fertil izers, dental products, ceramics and polishing powder. Some other important applications are in plastics as a stabilizer; as an anticaking agent; as a nutri ent supplement in cattle food; for clarifying sugar syrup; as a mordant in dye ing textiles; and as a buffer to control pH.

• 용도

  Tribasic calcium phosphate occurs in nature as minerals, oxydapatite, whitlockite, voelicherite, apatite, phosphorite. It has many industrial applications. Some are similar to the monobasic and dibasic salts. It is used in fertilizers, dental products, ceramics and polishing powder. Some other important applications are in plastics as a stabilizer; as an anticaking agent; as a nutrient supplement in cattle food; for clarifying sugar syrup; as a mordant in dyeing textiles; and as a buffer to control pH.

• 제조 방법

  Tribasic calcium phosphate is obtained from naturally occurring minerals for fertilizer applications. The compound may be prepared in the laboratory by the reaction of sodium phosphate with calcium chloride with excess of ammonia. Also, it can be prepared by treatment of calcium hydroxide with phosphoric acid:
  2H3PO4 + 3Ca(OH)2 → Ca3(PO4)2 + 6H2O

• 일반 설명

  β-tri-Calcium phosphate belongs to the category of calcium-phosphate based ceramics, which has been involved in the preparation of a new biosynthetic material possessing morphogenetic activity that is used as a bone implant.

• 공업 용도

  Calcium phosphate [Ca₃(PO₄)₂] finds applications as a supplement for animal feed, as a fertiliser, in the manufacture of glass and in dental products.

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