싸이오황산나트륨

Na₂S₂O₃

IUPAC: Sodium thiosulfate

CAS: 7772-98-7

개요

Sodium thiosulfate (hypo) was essential in analog photography as a photographic fixer. It also neutralizes chlorine in water.

구성

원소 기호 원자 원자 질량
산소 O 3 15.9990
나트륨 Na 2 22.9900
S 2 32.0600

원소 구성

O
30.4%
S
×2
40.6%

용도

  • Photography fixer
  • Chlorine neutralizer
  • Cyanide poisoning antidote
  • Gold extraction

흥미로운 사실

  • In photography, sodium thiosulfate removes unexposed silver halide — the process is called 'fixing' the image

구조

SMILES

[O-]S(=O)(=S)[O-].[Na+].[Na+]

성질

유형
salt
상태
solid
몰 질량
158.11 g/mol
밀도
1.6700 g/cm³
녹는점
48.3 °C
용해도
700 g/L at 20°C

분자 기술자

정확 질량
157.9084
TPSA
104.0 Ų
수소결합 주개
0
수소결합 받개
4
회전 가능 결합
0
중원자
7
복잡도
82.0

Frequently Asked Questions

What is 싸이오황산나트륨?
싸이오황산나트륨 (Na₂S₂O₃) is a salt compound with the IUPAC name Sodium thiosulfate.
What is the molecular weight of 싸이오황산나트륨?
싸이오황산나트륨 has a molar mass of 158.11 g/mol.
What state is 싸이오황산나트륨 at room temperature?
싸이오황산나트륨 is a solid at room temperature.
Is 싸이오황산나트륨 organic or inorganic?
싸이오황산나트륨 is classified as an inorganic compound.
What elements make up 싸이오황산나트륨?
싸이오황산나트륨 (Na₂S₂O₃) is composed of 산소 (O), 나트륨 (Na), 황 (S).