황산철(Ⅱ)

한글명:황산철(Ⅱ)

카스 번호7720-78-7

상품명:FERROUS SULFATE

CBNumberCB7450570

분자식FeO4S

포뮬러 무게151.91

MOL 파일7720-78-7.mol

동의어(한글)

철의황산염용액1M

황산철(Ⅱ)

황산제일철

화학적 성질

녹는점	decomposes at 671℃ [JAN85]
밀도	3.650
증기압	0Pa at 20℃
저장 조건	Store at +15°C to +25°C.
용해도	물(약간 용해됨)
물리적 상태	흰색 사방정계 결정
색상	white orthorhombic crystals, crystalline; hygroscopic
냄새	100.00%. 냄새 없는
수용성	g/100g 용액 H2O: 13.6(0°C), 22.8(25°C), 24.0(100°C); 고체상, FeSO4 · 7H2O (0°C, 25°C), FeSO4 ·H2O (100°C) [KRU93]
Dielectric constant	14.2（14℃）
InChI	InChI=1S/Fe.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
InChIKey	BAUYGSIQEAFULO-UHFFFAOYSA-L
SMILES	[Fe+2].S([O-])([O-])(=O)=O
CAS 데이터베이스	7720-78-7(CAS DataBase Reference)
NIST	Ferrous sulfate(7720-78-7)
EPA	Ferrous sulfate (7720-78-7)

위험 및 안전 성명

위험 카페고리 넘버	25
안전지침서	45
HS 번호	28332910
유해 물질 데이터	7720-78-7(Hazardous Substances Data)
독성	LD50 oral in rat: 319mg/kg

그림문자(GHS)

황산철(Ⅱ) 화학적 특성, 용도, 생산

용도
1.제지 산업 그것은 중립과 알칼리성 PH에 종이의 정립에서 도와, 따라서 서류상 질을 (반점과 구멍을 감소시키고 장 대형과 힘 개량하기) 개량하고 효율성을 치수를 재.
2.물 유출하는 치료 시스템 그것은 식용수 및 폐수 처리의 정화를 위해 강수와 응집에 의하여 불순의 침전해서 사용했습니다.
3.섬유 산업 그것은 면 직물을 위한 나프톨에 근거한 염료에 있는 색깔 담합을 위해 사용됩니다.
순도시험

(1) 액성 : 결정물 1g에 물 10mL를 가하여 녹일 때, 액의 pH는 3.7 이상이어야 한다.
  (2) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 4.0ppm 이하이어야 한다.
  (3) 납 : 이 품목 1.0g을 정밀히 달아 50mL 플라스크에 넣고 여기에 9N 염산 10mL, 물 10mL, 아스코브산-요오드화나트륨용액 20mL 및 트리옥틸포스핀옥시드용액 5mL를 가하여 30초 동안 흔들어 섞고 방치하여 층을 분리한다. 다시 물을 가하여 유기층을 플라스크의 목부분에 오도록 하고 흔들어 섞은 다음 정치하여 층을 분리한 후 유기용매 층을 시험용액으로 한다. 따로 납표준용액 10mL를 취하여 정확히 100mL로 하고 이액 2mL를 정확히 취하여 50mL 플라스크에 넣고 시험용액과 동일한 방법으로 조작하여 대조액으로 한다. 시험용액 및 대조액을 원자흡광광도법 또는 유도결합플라즈마발광광도법에 따라 시험할 때, 그 양은 2.0ppm 이하이어야 한다.
아스코브산-요오드화나트륨용액 : 아스코브산 10g 및 요오드화나트륨 19.3g을 물에 녹여 100mL로 한다.
트리옥틸포스핀옥시드용액 : 트리옥틸포스핀옥시드 5g을 메틸이소부틸케톤에 녹여 100mL로 한다.
  (4) 수은 : 이 품목을 수은시험법에 따라 시험할 때, 그 양은 1.0ppm 이하이어야 한다.
확인시험

이 품목의 수용액(1→100)은 확인시험법 중 제일철염 및 황산염의 반응을 나타낸다.
정량법

이 품목 0.5g을 정밀히 달아 황산(1→25) 25mL 및 새로 끓여서 식힌 물 25mL의 혼액에 녹여 0.1N 과망간산칼륨용액으로 적정한다.
결정물: 0.1N 과망간산칼륨용액 1mL ＝ 27.802mg FeSO₄•7H₂O
건조물: 0.1N 과망간산칼륨용액 1mL ＝ 15.191mg FeSO₄
정의

이 품목에는 결정물(7수염) 및 건조물(1～1.5수염)이 있고, 각각을 황산제일철(결정) 및 황산제일철(건조)라 칭한다.
개요
Green vitriol, FeSO4.7H20, has been known since the thirteenth century ; it crystallizes from solutions of iron or iron bases in dilute sulphuric acid. The heptahydrate forms green monoclinic crystals of density 1·88, very soluble in water (296 g litre^-1 FeS04 at 25°C). By precipitating the aqueous solution with ethanol, heating the heptahydrate to 140° in vacuo or by crystallizing it from 50 % sulphuric acid, the white monohydrate is obtained. This can be further dehydrated to the white, amorphous FeSO4 by heating to 300° in a current of hydrogen. At red heat the sulphate decomposes : 2FeS04 -> Fe203+S02+S03 A tetrahydrate, FeS04.4H20, crystallizes from aqueous solutions above 56°.
화학적 성질
Ferrous sulfate is a greenish or yellowish solid in fine or lumpy crystals.
물리적 성질
White orthorhombic crystal; hygroscopic; density 3.65 g/cm³; soluble in water (26.6g/100g water at 20°C). The monohydrate is a yellowish-white monoclinic crystal; density 3.0 g/cm³; decomposes at 300°C; soluble in water. Heptahydrate is bluish-green monoclinic crystal; refractive index 1.47; hardness 2 Mohs; density 1.89g/cm上3; decomposes at about 60°C; very soluble in water; soluble in absolute methanol; slightly soluble in ethanol.
출처
Iron(II) sulfate is probably the most important salt of iron, as well as the longest-known iron(II) compound. The compound is used as a mordant in dyeing; as a component of writing ink; in electroplating baths; in radiation dosimeters; in lithography and engraving; as a weed-killer; and in water purification. A major application of this compound is in the manufacture of other iron(II) salts including Prussian blue or ferric ferrocyanide. Iron(II) sulfate also is used as a reducing agent and an analytical reagent (in brown ring test for nitrate).
용도
Ferrous Sulfate is a nutrient and dietary supplement that is a source of iron. it is a white to grayish odorless powder. ferrous sulfate hep- tahydrate contains approximately 20% iron, while ferrous sulfate dried contains approximately 32% iron. it dissolves slowly in water and has high bioavailability. it can cause discoloration and rancidity. it is used for fortification of baking mixes. in the encapsulated form it does not react with lipids in cereal flours. it is used in infant foods, cereals, and pasta products.
생산 방법
Iron(II) sulfate in industrial scale is mostly produced in the pickling process as a by-product of the steel industry. It is obtained when the surface of steel is cleaned with dilute sulfuric acid to remove metal impurities. In the laboratory iron(II) sulfate heptahydrate may be prepared by dissolving iron in dilute sulfuric acid in a reducing atmosphere, followed by crystallization:
Fe + H₂SO₄ → FeSO₄ + H₂
Alcohol may be added to the aqueous solution to speed up crystallization; iron(II) may otherwise oxidize to iron(III) during a slow crystallization process.
Iron(II) oxide or carbonate may be used instead of iron metal to prepare the heptahydrate.
.
정의
A rusty-brown solid prepared by the action of heat on iron(III) hydroxide or iron(II) sulfate. It occurs in nature as the mineral hematite. Industrially it is obtained by roasting iron pyrites. Iron(III) oxide dissolves in dilute acids to produce solutions of iron(III) salts. It is stable at red heat, decomposes around 1300°C to give triiron tetroxide, and can be reduced to iron by hydrogen at 1000°C. Iron(III) oxide is not ionic in character but has a structure similar to that of aluminum(III) oxide.
위험도
Ingestion causes intestinal disorders.
농업용
Copperas, also called green vitriol, is ferrous sulphate heptahydrate. It is an iron salt fertilizer, which is most effective in overcoming iron deficiency.
Safety Profile
A human poison by ingestion. Moderately toxic to humans by an unspecified route. An experimental poison by ingestion, intraduodenal, intraperitoneal, intravenous, and subcutaneous routes. Human systemic effects by ingestion: aggression, somnolence, brain recorlng changes, diarrhea, nausea or vomiting, bleedmg from the stomach, coma. Questionable carcinogen with experimental tumorigenic data. Experimental teratogenic and reproductive effects. Mutation data reported. Potentially explosive reaction with methyl isocyanoacetate at 25'. May igmte on contact with arsenic trioxide + sodium nitrate. When heated to decomposition it emits toxic fumes of SOx. See also IRON COMPOUNDS.
잠재적 노출
It is used as a fertilizer, food or feed additive; and in herbicides; process engraving; dyeing, and water treatment. A byproduct of various chemical and metal treating operations.
비 호환성
Aqueous solution is acidic. Contact with alkalies form iron. Keep away from alkalies, soluble carbo nates; gold and silver salts; lead acetate; lime water, potassium iodide; potassium and sodium tartrate; sodium borate; tannin.

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