Informations de base
1.Nom du produit: Sulfure de sodium
2.Autres noms:
Sodium monosulfide; Sodium sulfide (Na2S); sodium sulfuret; Sodium Sulphide; Disodium monosulfide; Disodium sulfide; disodiummonosulfide; disodiumsulfide; Hesthsulphid; Na2-S; disodium sulfanide; sodium sulfidosodium
3.Formule moléculaire: Na2S
4.Un non.: 1849
5.N° SH:2830101000
6.N ° CAS.: 1313-82-2
7.N° EINECS: 215-211-5
8.Classe de danger: 8
9.Pureté: 60%
10.Apparence: Yellow and Red Flakes
11.Norme de qualité: Niveau industriel
Proprietes physiques et chimiques
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9H2O. Both the anhydrous and the hydrated salts are colorless solids, They are water-soluble, giving strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells like rotten eggs. Some commercial samples are specified as Na2S·xH2O, where a weight percentage of Na2S is specified. Commonly available grades have around 60% Na2S by weight, which means that x is around 3. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as ‘sodium sulfide flakes’.
Norme de qualité: Niveau industriel
ITEM STANDARD STANDARD STANDARD II STANDARD III STANDARD STANDARD
Fe 10ppm max 20ppm max 30ppm max 80ppm max 150ppm max 1500ppm max
Na2S 60%min 60%min. 60%min. 60%min. 60%min. 60%min.
Water insolubles 0.03%max 0.10%max. 0.18%maximum. 0.20%maximum. 0.30%maximum. 0.40%maximum.
Na2CO3 1.80%max 1.80%max. 1.80%maximum. 2.00%maximum. 3.00%maximum. 5.00%maximum.
Na2SO3 1.00%max 1.80%max. 1.80%maximum. 2.00%maximum. 2.00%maximum. 2.00%maximum.
Na2S2O3 2.00%max 2.00%max. 2.00%maximum. 2.00%maximum. 2.00%maximum. 2.00%maximum.
Colour Yellow RED
Note: The above specification meets requirement of GB/T 10500-2009,and also accords with European and American Standards. Third party inspection Is also acceptable, Comme BV,SGS etc..
Emballer
| Emballer | Quantité (Sans palette) 20'GP | Quantité (Avec Palette) 20'GP |
| 25kg Sac | 25MT | 20MT |
| 1000kg sac | 20MT | 18MT |
Application
1.Sodium sulfide is primarily used in the kraft process in the pulp and paper industry.
2.It is used in water treatment as an oxygen scavenger agent and also as a metals precipitant;
3.in chemical photography for toning black and white photographs;
4.in the textile industry as a bleaching agent, for desulfurising and as a dechlorinating agent;
5.in the leather trade for the sulfitisation of tanning extracts.
6.It is used in chemical manufacturing as a sulfonation and sulfomethylation agent.
7.It is used in the production of rubber chemicals, sulfur dyes and other chemical compounds.
8.It is used in other applications including ore flotation, oil recovery, making dyes, and detergent.
9.It is also used during leather processing, as an unhairing agent in the liming operation.
Stockage
A conserver au frais, endroit sec. Garder le contenant fermé lorsqu'il ne sert pas. Conserver dans un récipient hermétiquement fermé. Éviter tout contact avec des matières oxydantes. Tenir à l'écart des acides forts. Conserver à l'abri de l'humidité.
Like sodium hydroxide, sodium sulfide is strongly alkaline and can cause skin burns. Acids react with it to rapidly produce hydrogen sulfide, which is highly toxic.
