Thiocyanic acid
- Product Name
- Thiocyanic acid
- CAS No.
- 463-56-9
- Chemical Name
- Thiocyanic acid
- Synonyms
- HSCN;Thiocyanic acid;Sulfocyanic acid;hydrogen thiocyanate
- CBNumber
- CB4852524
- Molecular Formula
- CHNS
- Formula Weight
- 59.09
- MOL File
- 463-56-9.mol
Thiocyanic acid Property
- Melting point:
- -110 °C
- Boiling point:
- -87.78°C (estimate)
- Density
- 1.228 (estimate)
- refractive index
- 1.4640 (estimate)
- pka
- 0.93±0.10(Predicted)
- PH
- pKa1= –0.87(25℃)
- LogP
- 0.429 (est)
- EPA Substance Registry System
- Thiocyanic acid (463-56-9)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 20/21/22-32-52/53
- Safety Statements
- 13-61
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H412Harmful to aquatic life with long lasting effects
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P312Call a POISON CENTER or doctor/physician if you feel unwell.
P322Specific measures (see …on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- CHM0143174
- Product name
- THIOCYANIC ACID
- Purity
- 95.00%
- Packaging
- 5ML
- Price
- $455
- Updated
- 2021/12/16
- Product number
- CHM0143174
- Product name
- THIOCYANIC ACID
- Purity
- 95.00%
- Packaging
- 100ML
- Price
- $1525.83
- Updated
- 2021/12/16
Thiocyanic acid Chemical Properties,Usage,Production
Chemical Properties
White substance with an enamel luster. M.p. —110°C. Polymerizes between —90 and —85°C to a white crystalline mass. Converts with careful heating in vacuum to bright-yellow, ether-soluble thiocyanuric acid [(HNCS)3?], which readily dissocates into HNCS. If either HNCS or the yellow form is heated at room temperature without evacuation, the material slowly turns dark red, both in the presence and in the absence of air. At about +3°C, a rapid exothermic reaction occurs. The entire mass foams and coalesces into a slurry. Miscible with water in all proportions. Dilute solutions (<5%) are stable. Very strong acid.
Definition
ChEBI: A hydracid that is cyanic acid in which the oxygen is replaced by a sulfur atom.
Definition
thiocyanic acid: An unstable gas, HSCN.
Synthesis
A mixture of KNCS and KHSO4 is ground together as finely as
possible and allowed to stand for 3-4 weeks over P3OS. Then
flask a of an apparatus is successively charged (the order of addition should be maintained)
with 250 g. of glass beads (6-7 mm. in diameter), 100 g. of KNCS
alternated with beads, then a covering layer of glass beads, then
the required amount of KHSO4 mixed with glass beads. Without
disturbing these layers, the glass flask is mounted in a rigid
support and joined on one side of the horizontal tube p via a ground
glass spray trap / . The other ground glass joint of a is closed off
with a cap.
KNCS + KHSO4 = K2SO4 + HNCS
Thiocyanic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Thiocyanic acid Suppliers
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