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Natriumsulfat Produkt Beschreibung

Sodium sulfate Struktur
7757-82-6
CAS-Nr.
7757-82-6
Bezeichnung:
Natriumsulfat
Englisch Name:
Sodium sulfate
Synonyma:
NaSO;kemol;Na2SO4;Crimidesa;SALT CAKE;Mirabilite;Thenardite;Sal mirabil;Natriumsulfat;NATRII SULFAS
CBNumber:
CB4100946
Summenformel:
Na2SO4
Molgewicht:
142.04214
MOL-Datei:
7757-82-6.mol

Natriumsulfat Eigenschaften

Schmelzpunkt:
884 °C (lit.)
Siedepunkt:
1700°C
Dichte
2.68 g/mL at 25 °C (lit.)
Brechungsindex
1.484
storage temp. 
Store at +5°C to +30°C.
Löslichkeit
H2O: 1 M at 20 °C, clear, colorless
Aggregatzustand
powder (fine)
Wichte
2.68
Farbe
White
PH
5.2-8.0 (50g/l, H2O, 20℃)
Säure-Base-Indikators(pH-Indikatoren)
5.2 - 9.2
Wasserlöslichkeit
18.5 mg/L
Sensitive 
Hygroscopic
maximale Wellenlänge (λmax)
λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.015
Merck 
14,8680
Stabilität:
Stable. Incompatible with strong acids, aluminium, magnesium, strong bases. Hygroscopic.
CAS Datenbank
7757-82-6(CAS DataBase Reference)
NIST chemische Informationen
Sodium sulfate(7757-82-6)
EPA chemische Informationen
Sodium sulfate (7757-82-6)

Sicherheit

Kennzeichnung gefährlicher Xi
R-Sätze: 36/37/38
S-Sätze: 24/25
WGK Germany  1
RTECS-Nr. WE1650000
3
TSCA  Yes
HS Code  28331100
Giftige Stoffe Daten 7757-82-6(Hazardous Substances Data)
Toxizität LD50 orally in Rabbit: > 2000 mg/kg

Natriumsulfat Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

HYGROSKOPISCHER WEISSER FESTSTOFF IN VERSCHIEDENEN FORMEN.

CHEMISCHE GEFAHREN

Zersetzung beim Erhitzen unter Bildung von Schwefeloxiden und Natriumoxiden.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).

INHALATIONSGEFAHREN

Verdampfen bei 20°C vernachlässigbar; eine belästigende Partikelkonzentration in der Luft kann jedoch schnell erreicht werden.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Beim Verschlucken sind Auswirkungen auf den Magendarmtrakt möglich.

LECKAGE

Persönliche Schutzausrüstung: Atemschutzgerät, P1-Filter für inerte Partikel. Verschüttetes Material in abgedeckten Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern.

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

Sodium sulfate, NaS04, also known as thenardite and salt cake, is a crystalline compound that melts at 888°C (1632°C). Sodium sulfate is found in natural form(thenardite) in Chile and Spain. It is used in the manufacture of paperboard, glass,and freezing mixtures. The hydrate, Na2S04·10H20, also known as "Glauber's salt," is a white water-soluble solid formed by heating sodium chloride and sulfuric acid. It is used in dyeing,manufacturing glass,and in the preparation of sodium bisulfate.

Chemische Eigenschaften

Sodium sulfate is a white crystalline solid. It frequently is found as the decahydrate

Physikalische Eigenschaften

Anhydrous sodium sulfate is a white crystalline powder; orthorhombic or hexagonal structure; hygroscopic; refractive index 1.468; hardness 2.8 Mohs; density 2.664 g/cm3; melts at 884°C; soluble in water, insoluble in ethanol.
The decahydrate consists of colorless monoclinic crystals; refractive index 1.394; hardness 1.8 Mohs; density 1.4 6g/cm3; decomposes at 32°C; soluble in water; insoluble in ethanol.

Occurrence

Sodium sulfate occurs in nature as the minerals mirabilite and thenardite. While thenardite is the anhydrous form of Na2SO4, mirabilite is a naturallyoccurring decahydrate, Na2SO4?10H2O.
Sodium sulfate is one of the most important sodium salts. The decahydrate,commonly known as the Glauber’s salt, was first prepared by Johann Glauber in the seventeenth century as a by-product in making hydrochloric acid from sulfuric acid and sodium chloride.
Sodium sulfate is used in manufacturing paper pulp by the Kraft Process. Other uses are in manufacturing glass and ultramarine; in dyeing and printing textiles; as a filler in synthetic detergents; and for standardizing dyes. A major use of anhydrous sodium sulfate is as an agent to remove water from organic solvents and their extracts for organic synthesis and instrumental analysis. Sodium sulfate is a common laboratory reagent. Also, it is used to prepare other sodium salts.

Verwenden

Sodium Sulfate is the salt of sulfuric acid that is readily soluble in water and exists as crystals or crystalline powder. it is used in cara- mel production.

Verwenden

sodium sulfate is a filler in the manufacturing of synthetic detergents and soaps and a laboratory reagent. It may enhance the irritant action of certain detergents.

Verwenden

Used in kjeldahl nitrogen determination; drying agent .

Definition

A white crystalline compound, Na2SO4, usually known as the anhydrous compound (orthorhombic; r.d. 2.67; m.p. 888°C) or the decahydrate (monoclinic; r.d. 1.46; which loses water at 100°C). The decahydrate is known as Glauber’s salt. A metastable heptahydrate (Na2SO4·7H2O) also exists. All forms are soluble in water, dissolving to give a neutral solution. The compound occurs naturally as
mirabilite (Na2SO10H2O),
threnardite (Na2SO4), and
glauberite (Na2SO4·CaSO4).
Sodium sulphate may be produced industrially by the reaction of magnesium sulphate with sodium chloride in solution followed by crystallization, or by the reaction of concentrated sulphuric acid with solid sodium chloride. The latter method was used in the Leblanc process for the production of alkali and has given the name salt cake to impure industrial sodium sulphate. Sodium sulphate is used in the manufacture of glass and soft glazes and in dyeing to promote an even finish. It also finds medicinal application as a purgative and in commercial aperient salts.

Vorbereitung Methode

Sodium sulfate is mined from its natural mineral deposits and subjected to purification.
Sodium sulfate is synthesized by the Mannheim process or Hargreaves process. Manheim’s process is based on Glauber’s reaction between sulfuric acid and sodium chloride: 2NaCl + H2SO4 → Na2SO4 + 2HCl↑
The process was devised by Johann Glauber to produce hydrochloric acid. Sodium sulfate is isolated from the solution by fractional crystallization.
Hargreaves’ process also was developed to produce hydrochloric acid. It is a variation of Mannheim’s method. In this method, sulfur dioxide is used instead of sulfuric acid. The reaction is as follows: 4NaCl + 2SO2 + O2 + 2H2O → 2Na2SO4 + 4HCl↑
Sodium sulfate also is obtained as a byproduct of manufacturing phenol by caustic fusion.

Sicherheitsprofil

Moderately toxic by intravenous route. Mildly toxic by ingestion. An experimental teratogen. Experimental reproductive effects. Questionable carcinogen with experimental tumorigenic effects. Violent reaction with Al. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also SULFATES.

mögliche Exposition

Sodium sulfate is used in the manufacture of glass; as a precipitating agent in the manufacture of silver emulsions; as an analytical reagent; in making ultramarine and paper pulp; in ceramic glazes and pharmaceuticals; as a food additive; and a filler in synthetic detergents.

Veterinary Drugs and Treatments

Sodium sulfate is used as a saline cathartic, primarily in food animals.

Versand/Shipping

UN2630 Selenates or Selenites, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

läuterung methode

Crystallise sodium sulfate from water at 30o (1.1mL/g) by cooling to 0o. It becomes anhydrous at 32o.

Inkompatibilitäten

Violent reaction with aluminum, magnesium. Attacks metals in the presence of moisture.

Waste disposal

Do not discharge waste sodium sulfate directly into sewers or surface waters. Recovered sodium sulfate may be disposed of by burial in a landfill.

Natriumsulfat Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Natriumsulfat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 542)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Jiangsu Kolod Food Ingredients Co.,Ltd.
+8618805133257 +86-518-85110578 18805133257
+86-518-85110578 sales3257@jskolod.com China 129 60
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5892 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
Shanghai Longyu Biotechnology Co., Ltd.
+8615821988213
+86 15821988213 info@longyupharma.com China 2473 58

7757-82-6(Natriumsulfat)Verwandte Suche:


  • Anhydrous sodium sulfate
  • Bisodium sulfate
  • bisodiumsulfate
  • Crimidesa
  • Crude sodium sulfate
  • dibasicsodiumsulfate
  • Disodium monosulfate
  • Disodium sulfate
  • Disodium sulphate
  • disodiummonosulfate
  • disodiumsulfate
  • disodiumsulphate
  • kemol
  • Mirabilite
  • Na2SO4
  • Natriumsulfat
  • natriumsulfat[qr]
  • Sal mirabil
  • Sodium sulfate (2:1)
  • Sodium sulfate (Na2SO4)
  • Sodium sulfate, anhydrous
  • sodiumsulfate(2:1)
  • sodiumsulfate(na2so4)[qr]
  • Sodiumsulfate,anhydrous
  • sodiumsulfateanhydrous
  • Sulfuric acid disodium salt
  • Sulfuric acid, sodium salt
  • Sulfuricacid,disodiumsalt
  • sulfuricaciddisodiumsalt
  • Thenardite
  • Trona anhydrous sodium sulphate
  • Trona salt cake
  • SODIUM SULPHATE FINE PWDR
  • Sodium sulfate, anhydrous, 99.99% trace metals basis
  • Sodium sulfate, 99.995% trace metals basis
  • Sodium sulfate anhydrous for analysis EMSURE ACS,ISO,Reag. Ph Eur
  • Sodium sulfate anhydrous granulated for organic trace analysis EMSURE
  • Sodium sulfate anhydrous, coarse granules for analysis 0.63 - 2.0 mm EMSURE ACS
  • Sodium sulfate anhydrous, free-flowing, Redi-Dri, ACS reagent, >=99%
  • Sodium sulfate anhydrous, free-flowing, Redi-Dri, ReagentPlus, >=99%
  • SODIUM SULFATE BIOXTRA
  • SODIUM SULFATE, ACS REAGENT, ANHYDROUS&
  • SODIUM SULFATE, GRANULAR, 99+%. A.C.S. R
  • SODIUM SULFATE, GRANULAR, 99+%. A.C.S. REAGENT
  • SODIUM SULFATE ANHYDROUS, FINE POWDER
  • SODIUM SULFATE, 99.99+%
  • SODIUM SULFATE, REAGENTPLUS TM, >= 99.0%
  • SODIUM SULFATE ANHYDROUS, PESTANAL
  • SODIUM SULFATE ANHYDROUS ACS REAGENT
  • SODIUM SULFATE ANHYDROUS, PH EUR
  • SODIUM SULFATE ANHYDRE, TECHNICAL
  • SODIUM SULFATE STANDARD SOLUTION, 0.5 M
  • SODIUM SULFATE PLANT CELL CULTURE*TESTED
  • SULFATE, VOLUMETRIC STANDARD, SOLUTION IN WATER
  • SODIUM SULFATE SOLUTION 1M IN WATER*
  • SodiumSulphateAnhydrousFcc
  • SodiumSulphateAnhydrousUsp
  • SodiumSulphateAnhydrousBp
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