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Copper(II) sulfate CAS#7758-98-7

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  • Copper(II) sulfate CAS#7758-98-7
  • Copper(II) sulfate CAS#7758-98-7
  • Copper(II) sulfate CAS#7758-98-7
  • Copper(II) sulfate CAS#7758-98-7

›

Copper(II) sulfate CAS#7758-98-7

High Water Solubility：Copper sulfate dissolves easily in water, forming a bright blue solution.


Versatile Physical Forms：Available as greenish-white crystalline solid, blue powder, granules, or ultramarine crystalline solid.


Thermal Stability：Pentahydrate decomposes at high temperatures (above 110℃), while anhydrous copper sulfate decomposes to CuO at 650℃.


Safe Handling Profile：Rated low in flammability (0) and reactivity (0), with moderate health hazard (2) according to NFPA-704.



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Product Description

Products Description of Copper(II) sulfate CAS#7758-98-7

Anhydrous copper sulfate is a greenish-white crystalline solid, while its pentahydrate occurs as blue powder, granules or ultramarine crystals.

The molecular weights are 159.60 (anhydrous) and 249.70 (pentahydrate).

The pentahydrate partially dehydrates at about 110 °C and fully loses water near 150 °C, melting and decomposing around 200 °C.

Anhydrous copper sulfate decomposes into copper(II) oxide at 650 °C.


Product Applications of Copper(II) sulfate CAS#7758-98-7

Copper sulfate, or blue vitriol, is synthesized from sulfuric acid and elemental copper. It forms bright blue crystals soluble in water and alcohol. Mixed with ammonia, it is applied in liquid filtration systems. Blended with potassium bromide, it yields copper bromide bleach for image enhancement and toning. It also serves as a restrainer in ferrous sulfate developers for collodion photography.

Product Information

Parameters


Melting point200 °C (dec.)(lit.)
bulk density800kg/m3
density3.603 g/mL at 25 °C(lit.)
vapor pressure7.3 mm Hg ( 25 °C)
storage temp.Store at +5°C to +30°C.
solubilityH2O: soluble
formpowder
colorSlightly greenish to gray
Specific Gravity3.603
Flame ColorBluish-green
Odorodorless
PH3.5-4.5 (50g/l, H2O, 20℃)
PH Range3.7 - 4.5
Water Solubility203 g/L (20 ºC)
SensitiveHygroscopic
Merck142,653
Exposure limitsACGIH: TWA 1 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
Dielectric constant10.3（0.0℃）
Stability:hygroscopic
Cosmetics Ingredients FunctionsSKIN CONDITIONING
InChIKeyARUVKPQLZAKDPS-UHFFFAOYSA-L
CAS DataBase Reference7758-98-7(CAS DataBase Reference)
NIST Chemistry ReferenceCupric sulfate(7758-98-7)
EPA Substance Registry SystemCupric sulfate (7758-98-7)


Safety Information


Hazard CodesXn,N,Xi
Risk Statements36/38-50/53-22-51/53-36/37/38
Safety Statements24/25-36-60-61-22-26
RIDADRUN 3288 6.1/PG 3
WGK Germany2
RTECSGL8800000
F3
TSCAYes
HS Code2833 25 00
HazardClass6.1
PackingGroupIII
Hazardous Substances Data7758-98-7(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 481 mg/kg


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