Prix FOB
Obtenir le dernier prix( Negotiable )
|18 Metric Ton Minimum Order
Pays:
China
N ° de modèle:
-
Prix FOB:
( Negotiable ) Obtenir le dernier prix
Localité:
China
Prix de commande minimale:
-
Commande minimale:
18 Metric Ton
Packaging Detail:
-
Heure de livraison:
-
Capacité de Fournir:
5000 Metric Ton per Month
Payment Type:
T/T, L/C
Groupe de produits :
-
Personne àcontacter Bert
Dongying, Shandong
Sodium hydrosulfide is the chemical compound with the formula
NaSH. This compound is the product of the half-neutralization
of hydrogen sulfide (H2S) with sodium hydroxide (NaOH). NaSH and
sodium sulfide are used industrially, often for similar purposes.
Solid NaSH is colorless. The solid has an odor of H2S owing to
hydrolysis by atmospheric moisture. In contrast with sodium sulfide
(Na2S), which is insoluble in organic solvents, NaSH, being a 1:1
electrolyte, is more soluble.
Crystalline NaHS undergoes two phase transitions. At temperatures
above **0 K, NaSH adopts the NaCl structure, which implies that the
HS− behaves as a spherical anion owing to its rapid rotation,
leading to equal occupancy of eight equivalent positions. Below **0
K, a rhombohedral structure forms, and the HS− sweeps out a
discoidal shape. Below **4 K, the structure becomes monoclinic. The
analogous rubidium and potassium compounds behave similarly.[1]
NaSH has a relatively low melting point of **0 °C. In addition to
the aforementioned anhydrous forms, it can be obtained as two
different hydrates, NaSH·2H2O and NaSH·3H2O. These three species
are all colorless and behave similarly, but not identically. It can
be used to precipitate other metal hydrosulfides, by treatment of
aqueous solutions of their salts with sodium hydrosulfide. It is
analogous to sodium hydroxide, and is a strong base.
| Pays: | China |
| N ° de modèle: | - |
| Prix FOB: | ( Negotiable ) Obtenir le dernier prix |
| Localité: | China |
| Prix de commande minimale: | - |
| Commande minimale: | 18 Metric Ton |
| Packaging Detail: | - |
| Heure de livraison: | - |
| Capacité de Fournir: | 5000 Metric Ton per Month |
| Payment Type: | T/T, L/C |
| Groupe de produits : | - |
