수소텔루라이드
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수소텔루라이드 속성
- 녹는점
- -49°
- 끓는 점
- bp -2°
- 밀도
- dliq-12 2.68
- 용해도
- soluble in H2O, ethanol, alkaline solutions
- 물리적 상태
- 무색 가스
- 색상
- 무색의
- 수용성
- 가용성 H2O, 불안정한 용액; 수용성 알코올 및 알칼리 [HAW93]
- CAS 데이터베이스
- 7783-09-7
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
기존화학 물질 | KE-10691 |
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신호 어: | Danger | ||||||||||||||||||||||||||||
유해·위험 문구: |
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예방조치문구: |
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수소텔루라이드 C화학적 특성, 용도, 생산
개요
Hydrogen telluride has the formula, H2Te. The simplest hydride of Te, it is rarely encountered because of its tendency to decompose to the constituent elements. Most compounds with Te–H bonds are unstable with respect to loss of H2. H2Te is chemically and structurally similar to H2S, and both are acidic species with H–X–H angles approaching 90°.The tellurides of the alkaline earth metals tend to immediately decompose on exposure to air, with liberation of tellurium. H2Te is prepared by the acidification of salts of Te2-,such as Al2Te3 and Na2Te.Na2Te can be generated by the reaction of Na and Te in anhydrous ammonia. The intermediate in the acidification, the HTe is a stable anion.
H2Te is an endothermic compound, and is unstable in air, rapidly decomposing into water and elemental tellurium:
2H2Te+ O2 → 2H2O+ 2Te
It is almost as acidic as phosphoric acid (pKa=8.1×10-3), having a pKa value of about 2.3×10-3. It reacts with many metals to form tellurides. However, many of these are unstable relative to their decomposition to the elements. Its CAS number is 7783-09-7 and its molecular weight is 129.6158 g/mol. It is a colorless gas and is toxic if breathed. Its density is 3.310 g/cm3 and its melting point is –49°C with a boiling point of –2.2°C. Its solubility in water is 0.701 g/100 ml of water at 20°C.
화학적 성질
Colorless gas.Soluble in water but unstable; soluble in alcohol and alkalies.물리적 성질
Colorless gas; strong garlic-like odor; stable to light when dry but under-goes photochemical decompostion in the presence of moisture and dust; den-sity 5.68 g/L; liquefies to a colorless unstable liquid at -2°C, decomposed bylight; liquid density 2.57 g/mL at -20°C; solidifies at -49°C; soluble in water,alcohol and alkalies; pKa 2.6 (for first dissociation constant at 18°C) and 11.0(the dissociation constant at 25°C) for the second replaceable hydrogen.용도
It is synthesized by the action of acid on aluminum telluride. It has no industrial uses.제조 방법
Hydrogen telluride is prepared by the reaction of aluminum telluride,Al2Te3 with hydrochloric acid:Al2Te3 + 6HCl → 3H2Te + 2AlCl3
It also may be prepared by electrolysis of a 50% sulfuric acid solution using atellurium cathode.
위험도
See hydrogen selenide.수소텔루라이드 준비 용품 및 원자재
원자재
준비 용품
수소텔루라이드 공급 업체
글로벌( 8)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 |
1026@dideu.com | China | 8132 | 58 |
Hu Bei Jiutian Bio-medical Technology CO.,Ltd | 027-88013699 17354350817 |
Ryan@jiutian-bio.com | China | 7281 | 58 |
Mainchem Co., Ltd. | +86-0592-6210733 |
sale@mainchem.com | China | 32360 | 55 |
Shanghai Meishui Chemical Technology Co., Ltd | 021-60549325 18616193163 |
China | 4528 | 56 | |
JinJin Le Chemical Co., Ltd | 10106090 |
jjlchem2@163.com | China | 9981 | 58 |
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 17691182729 18161915376 |
1046@dideu.com | China | 10010 | 58 |
수소텔루라이드 관련 검색:
이산화 셀레늄 C.I. 색소 흑색 11 텔루르
TELLURIC ACID
STRONTIUM TELLURIDE
STRONTIUM TELLURITE
STRONTIUM TELLURATE
CALCIUM TELLURIDE, 99.99%
Tellurous acid
BARIUM TELLURIDE
Beryllium tellurate
MAGNESIUM TELLURIDE
Magnesium Tellurate
Beryllium Tellurite
Telluric acid (H2teo4), barium salt (1:1)
Magnesium Tellurite
Radium Tellurite
Barium Tellurite