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불화소다

불화소다
불화소다 구조식 이미지
카스 번호:
7681-49-4
한글명:
불화소다
동의어(한글):
불화나트륨,고체;나트륨모노플루오르화물;불화나트륨;불화나트륨*;불화소다;플루오라이드;플루오르화나트륨;불화나트륨;소듐플루오라이드
상품명:
Sodium fluoride
동의어(영문):
NaF;gelii;Gleem;credo;Flura;Ossin;Luride;Nafeen;Nafpak;Fluorl
CBNumber:
CB8854278
분자식:
FNa
포뮬러 무게:
41.99
MOL 파일:
7681-49-4.mol

불화소다 속성

녹는점
993 °C(lit.)
끓는 점
1700 °C
밀도
1.02 g/mL at 20 °C
증기압
1.4 mm Hg ( 0 °C)
굴절률
1.336
인화점
1704°C
저장 조건
2-8°C
용해도
H2O: 0.5 M at 20 °C, clear, colorless
물리적 상태
powder
색상
White to off-white
Specific Gravity
2.558
수소이온지수(pH)
7.0-10.0 (25℃, 0.5M in H2O)
냄새
Odorless
수용성
4 g/100 mL (25 ºC)
감도
Hygroscopic
Merck
14,8618
안정성
Stable. Hydrolyzed by water. Reacts with mineral acids to generate highly toxic hydrogen fluoride. Incompatible with glass.
CAS 데이터베이스
7681-49-4(CAS DataBase Reference)
NIST
Sodium fluoride(7681-49-4)
EPA
Sodium fluoride (NaF)(7681-49-4)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 T,Xn
위험 카페고리 넘버 25-32-36/38-22
안전지침서 23-24/25-45-36-22
유엔번호(UN No.) UN 1690 6.1/PG 3
WGK 독일 1
RTECS 번호 WB0350000
F 고인화성물질 10
위험 참고 사항 Toxic/Hygroscopic
TSCA Yes
HS 번호 2826 19 10
위험 등급 6.1
포장분류 III
유해 물질 데이터 7681-49-4(Hazardous Substances Data)
독성 LD50 orally in rats: 0.18 g/kg (Smyth)
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H301 삼키면 유독함 급성 독성 물질 - 경구 구분 3 위험 P264, P270, P301+P310, P321, P330,P405, P501
H303 삼키면 유해할 수 있음 급성 독성 물질 - 경구 구분 5 P312
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
예방조치문구:
P321 (…) 처치를 하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

불화소다 C화학적 특성, 용도, 생산

화학적 성질

White or almost white powder or colourless crystals.

화학적 성질

Sodium fluoride is a white powder or colorless crystals. Often used in a solution. Odorless. Pesticide grade is often dyed blue.

용도

As insecticide, particularly for roaches and ants; in other pesticide formulations; constituent of vitreous enamel and glass mixes; as a steel degassing agent; in electroplating; in fluxes; in heat-treating salt compositions; in the fluoridation of drinking water; for disinfecting fermentation apparatus in breweries and distilleries; preserving wood, pastes and mucilage; manufacture of coated paper; frosting glass; in removal of HF from exhaust gases to reduce air pollution. Dental caries prophylactic.

용도

Sodium fluoride (NaF), in the concentration of one ppm, is added to municipal drinking water to help reduce tooth decay. It is also used as an insecticide, fungicide, and rodenticide, as well as in the manufacture of adhesives, disinfectants, and dental products.

정의

ChEBI: A metal fluoride salt with a Na(+) counterion.

상표명

Fluorinse (Oral-B); Minute-Gel (Oral-B); Neutra Care (Oral-B); Pediaflor (Ross).

일반 설명

Sodium fluoride is a colorless crystalline solid or white powder, or the solid dissolved in a liquid. Sodium fluoride is formed by the reaction of sodium carbonate and hydrofluoric acid. Sodium fluoride is soluble in water. Sodium fluoride is noncombustible. Sodium fluoride is corrosive to aluminum. Sodium fluoride is used as an insecticide. Sodium fluoride is also used to fluorinate water supplies, as a wood preservative, in cleaning compounds, manufacture of glass, and for many other uses.

위험도

Toxic by ingestion and inhalation, strong irritant to tissue.

건강위험

Ingestion may cause vomiting, abdominal pain, diarrhea, convulsions, collapse, thirst, disturbed color vision, acute toxic nephritis.

건강위험

The acute toxicity of fluorides is generally moderate. High exposures may cause irritation of the eyes and respiratory tract. Ingestion of fluoride may cause a salty or soapy taste, vomiting, abdominal pain, diarrhea, shortness of breath, difficulty in speaking, thirst, weak pulse, disturbed color vision, muscular weakness, convulsions, loss of consciousness, and death. In humans the approximate lethal dose of NaF by ingestion is 5 g. Repeated inhalation of fluoride dust may cause excessive calcification of the bone and calcification of ligaments of the ribs, pelvis, and spinal column. Repeated skin contact may cause a rash Fluorides have not been shown to be carcinogenic or to show reproductive or developmental toxicity in humans.

화재위험

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

화재위험

Fluorides are not combustible.

화재위험

Fluorides are not combustible.

인화성 및 폭발성

Fluorides are not combustible.

공업 용도

Sodium fluoride is a white to yellowish powder, poorly soluble in water. The NaF solubility in water is 3.85% at 15 °C and 4.21% at 25 °C. Commercially, NaF is obtained by reacting hydrofluoric acid with sodium hydroxide. This reaction is a by-product during the production of superphosphates from fluoro-apatite. Sodium fluoride is an important depressant used exclusively during beneficiation of non-sulfide minerals, as well as the rare-earth minerals as a depressant alone or in combination with other depressants. It is used together with starch as co-depressant for rutile and ilmenite during zirconium– titanium separation or during reverse silicate flotation from rutile and ilmenite with cationic collectors. Although it is believed that Na2F is a silicate depressant, studies have shown that it does not depress silicate minerals. In fact, it improves depression of oxides and silicates when used with other depressants.

Safety Profile

Human poison by ingestion. Experimental poison by ingestion, skin contact, intravenous, intraperitoneal, subcutaneous, and intramuscular routes. Human systemic effects: changes in teeth and supporting structures, cyanosis, diarrhea, EKG changes, fluid intake, headache, hypermotihty, increased immune response, muscle weakness, musculo-skeletal changes, nausea or vomiting, paresthesia, ptosis (drooping of the eyelid from sympathetic innervation), respiratory depression, salivary gland changes, tremors. Experimental teratogenic and reproductive effects. Human mutation data reported. A corrosive irritant to skin, eyes, and mucous membranes. Questionable carcinogen with experimental tumorigenic data. It is very phytotoxic. When heated to decomposition it emits toxic fumes of Fand NazO. Used in chemical cleaning, for fluoridation of drinking water, as a funglcide and insecticide. See also FLUORIDES

잠재적 노출

Widely used in the chemical industry; in water treatment and fluoridation of drinking water; as an insecticide, fungicide, and rodenticide; chemical cleaning; electroplating, glass manufacture; vitreous enamels; preservative for adhesives; toothpastes, disinfectant, dental prophylaxis; also used orally in the treatment of various bone diseases to increase bone density and to relieve bone pain.

운송 방법

UN1690 Sodium fluoride, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Purification Methods

Crystallise NaF from water by partial evaporation in a vacuum desiccator, or dissolve it in water, and precipitate ca half of it by adding EtOH. The precipitate is dried in an air oven at 130o for one day, and then stored in a desiccator over KOH. Its solubility in H2O is 4% at 15o and 4.3% at 25o. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 235 1963].

비 호환성

Contact with acids release toxic gas. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

폐기물 처리

In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

불화소다 준비 용품 및 원자재

원자재

준비 용품


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