황산은
|
|
황산은 속성
- 녹는점
- 652 °C (lit.)
- 끓는 점
- 1085 °C
- 밀도
- 5.45
- 인화점
- 1085°C
- 저장 조건
- Keep in dark place,Sealed in dry,Room Temperature
- 용해도
- 8g/L
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- Specific Gravity
- 5.45
- 색상
- 흰색에서 황백색까지
- 수소이온지수(pH)
- 5-6 (5g/l, H2O, 25℃)
- 수용성
- 7.4g/L(20℃)
- 감도
- Light Sensitive
- Merck
- 14,8529
- Solubility Product Constant (Ksp)
- pKsp: 4.92
- 노출 한도
- ACGIH: TWA 0.01 mg/m3
NIOSH: IDLH 10 mg/m3; TWA 0.01 mg/m3
- 안정성
- 안정성 안정적이지만 빛에 민감합니다.
- InChIKey
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L
- CAS 데이터베이스
- 10294-26-5(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xi,C,N | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 36/37/38-36-35-50/53-41 | ||
| 안전지침서 | 26-36-39-45-36/37/39-30-61-60 | ||
| 유엔번호(UN No.) | UN 1830 8/PG 2 | ||
| WGK 독일 | 3 | ||
| F 고인화성물질 | 8 | ||
| TSCA | Yes | ||
| 위험 등급 | 9 | ||
| HS 번호 | 28432900 | ||
| 독성 | LD50 orally in Rabbit: 5000 mg/kg | ||
| 기존화학 물질 | KE-12273 | ||
| 유해화학물질 필터링 | 97-1-92 | ||
| 함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 무기은 염류 및 이를 25% 이상 함유한 혼합물. 다만, 염화 은(Silver chloride) 및 뇌산 은(Silver fulminate)은 제외 |
황산은 C화학적 특성, 용도, 생산
화학적 성질
Small crystals or powder, colorless and shiny. Contains approximately 69% silver and turns gray when exposed to light. Melts at 652°C and decomposes at 1,085°C. Partially dissolves in water and completely dissolves in solutions containing ammonium hydroxide, nitric acid, sulfuric acid, and hot water. Does not dissolve in alcohol. Its solubility in pure water is low, but it increases when the pH of the solution decreases. When the concentration of H+ ions is high enough, it can dissolve significantly.용도
Silver sulfate is used as a catalyst to oxidize long chain aliphatic hydrocarbons in the determination of chemical oxygen demand (COD). It serves as a catalyst in wastewater treatment and aids in the production of nanostructured metallic layers beneath Langmuir monolayers.주요 응용
Silver sulfate may be employed in the following studies:Iodination reagent in combination with iodine for the synthesis of iododerivatives.
Synthesis of iodinated uredines.
제조 방법
Silver sulfate is precipitated by adding sulfuric acid to a solution of silvernitrate:2Ag+(aq) + SO42- (aq) → Ag2SO4 (s) The precipitate is washed with hot water and preparation is under ruby red illumination.일반 설명
Silver sulfate is an odorless white to gray solid. Sinks and mixes with water. (USCG, 1999)반응 프로필
Silver sulfate has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.위험도
Highly toxic.건강위험
Contact with eyes causes irritation. If continued for a long period, ingestion or inhalation of silver compounds can cause permanent discoloration of the skin (argyria).Purification Methods
Crystallise the sulfate form hot conc H2SO4 containing a trace of HNO3, and dilute with H2O while being strongly cooled. The precipitate is filtered off, washed with H2O and dried at 120o. Its solubility in H2O is 0.8% at 17o, and 1.46% at 100o. Store it in the dark. [Glemser & Sauer in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1042 1965.]황산은 준비 용품 및 원자재
원자재
준비 용품
황산은 공급 업체
글로벌( 438)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hebei Zhanyao Biotechnology Co. Ltd | 15369953316 +8615369953316 |
admin@zhanyaobio.com | China | 2136 | 58 |
| Shanghai Bojing Chemical Co.,Ltd. | +86-86-02137122233 +8613795318958 |
bj1@bj-chem.com | China | 298 | 55 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21695 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 |
product@chemlin.com.cn | CHINA | 3012 | 60 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| City Chemical LLC | 2039322489 |
sales@citychemical.com | United States | 168 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Cangzhou Wanyou New Material Technology Co.,Ltd | 18631714998 |
sales@czwytech.com | CHINA | 906 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 |
sale@chuangyingchem.com | CHINA | 5909 | 58 |