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SULFATE STANDARD Produkt Beschreibung

SULFATE STANDARD Struktur
14808-79-8
CAS-Nr.
14808-79-8
Englisch Name:
SULFATE STANDARD
Synonyma:
SULPHATE;SULFATE ION;Sulfate ions;Sulfate anion;Sulfate dianion;SULFATE STANDARD;sulphate-sulfate;Sulfate (ion 2-);Sulfate anion(2-);SULFATE IC STANDARD
CBNumber:
CB8466491
Summenformel:
O4S-2
Molgewicht:
96.06
MOL-Datei:
14808-79-8.mol

SULFATE STANDARD Eigenschaften

storage temp. 
2-8°C
Aggregatzustand
Liquid
Farbe
Clear colorless
BRN 
3648446
CAS Datenbank
14808-79-8(CAS DataBase Reference)
EPA chemische Informationen
Sulfate (14808-79-8)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn
R-Sätze: 20/22
RIDADR  UN 3316 9
Bildanzeige (GHS)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H332 Gesundheitsschädlich bei Einatmen. Akute Toxizität inhalativ Kategorie 4 Warnung P261, P271, P304+P340, P312
Sicherheit

SULFATE STANDARD Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.

Beschreibung

The sulfate anion (SO42−) is the stable, oxidized form of sulfur. Sulfate minerals are widely distributed in nature, and most sulfate compounds are readily soluble in water. All sulfate salts are very soluble except for calcium and silver sulfates, which are moderately soluble, and barium, mercury, lead, and strontium sulfates, which are insoluble.
It is estimated that about one-half of the river sulfate load arises from mineral weathering and volcanism, and the other half from biochemical and anthropogenic sources. Industrial discharges are another significant source of sulfates. Mine and tailings drainage, smelter emissions, agricultural runoff from fertilized lands, pulp and paper mills, textile mills, tanneries, sulfuric acid production, and metalworking industries are all sources of sulfate-polluted water. Aluminum sulfate (alum) is used as a sedimentation agent for treating drinking water. Copper sulfate is used for controlling algae in raw and public water supplies.

Definition

ChEBI: A sulfur oxoanion obtained by deprotonation of both OH groups of sulfuric acid.

Health Hazard

The sulfate anion is generally considered nontoxic to animal, aquatic, and plant life. It is an important source of sulfur, an essential nutrient for plants and animals. Sulfates are used as additives in the food industry, and the average daily intake of sulfate from drinking water, air, and food is approximately 500 mg. As examples, some measured sulfate concentrations in beverages are 100–500 mg/L in drinking water, 500 mg/L in coconut milk, 260 mg/L in beer (bitter), 250 mg/L in tomato juice, and 300 mg/L in red wine (FNB 2004). Available data suggest that people acclimate rapidly to the presence of sulfates in their drinking water.
No upper limit likely to cause detrimental human health effects has been determined for sulfate in drinking water. However, concentrations of 500–750 mg/L may cause a temporary mild laxative effect, although doses of several thousand milligrams per liter generally do not cause any long-term ill effects. Because of the laxative effects resulting from ingestion of drinking water containing high sulfate levels, the EPA recommends that health authorities be notified of sources of drinking water that contain sulfate concentrations in excess of 500 mg/L.
The presence of sulfate can adversely affect the taste of drinking water, imparting a bitter taste. The lowest taste threshold concentration for sulfate is approximately 250 mg/L as sodium salt, but higher as calcium or magnesium salts (up to 1000 mg/L).

Environmental Fate

Nearly all natural surface waters and shallow groundwaters contain sulfate anions. Sulfate is commonly found as a prominent component of unpolluted waters and is included among the six major surface and shallow groundwater ions (Na+ , Ca+ , Mg+Cl− , (HCO3)2− , and (SO4)2−), second to bicarbonate as the most abundant anion in most freshwaters. Sulfur is an essential plant and animal nutrient, and sulfate is the most common inorganic form of sulfur in aerobic environments. Sulfate water concentrations that are too low have a detrimental effect on both land and aquatic plant growth.
Sulfate is redox sensitive and is bacterially reduced to sulfide ion under anaerobic conditions. Sulfide may be released to the atmosphere as H2S gas or precipitated as insoluble metal sulfides. Oxidation of sulfides returns sulfur to the sulfate form.
Sulfates may be leached from most sedimentary rocks, including shales, with the most appreciable contributions from such sulfate deposits as gypsum (CaSO4·2H2O) and anhydrite (CaSO4 ). The oxidation of sulfur-bearing organic materials can con- tribute sulfates to waters.

SULFATE STANDARD Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


SULFATE STANDARD Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 29)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Shaanxi Dideu Medichem Co. Ltd
18192627656
+86-29-88380327 1012@dideu.com CHINA 3949 58
Mainchem Co., Ltd. +86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32439 55
Shanghai BeiZhuo Biotech Co., Ltd. 021-61119791/13386096464
021-50190009 bzswkf@foxmail.com China 3930 50
Chengdu HuaXia Chemical Reagent Co. Ltd 13458535857 400-1166-196
QQ:800101999 cdhxsj@163.com;cdhxsj@163.com;cdhxsj@163.com China 13363 58
VWR(Shanghai) Co., Ltd 400-821-8006
+86-21-58558801 info_china@vwr.com China 3044 75
Zhongxiang Yaowei Biological Technology Co., Ltd. 13260682861 153-37241005-
w13260682861@163.com;516219607@qq.com China 2487 58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 17691182729 029-87576359-
02988380327 1018@dideu.com;1020@dideu.com China 9875 58

14808-79-8()Verwandte Suche:


  • AQUANAL-PLUS SULFATE
  • AQUANAL(R)-PLUS SULFATE
  • AQUANAL(R)-PLUS SULFATE (SO4) CHECK SOLUTION
  • SULFATE IC STANDARD
  • SULFATE ION
  • SULFATE ION CHROMATOGRAPHY STANDARD
  • SULFATE, ION CHROMATOGRAPHY STANDARD SOLUTION
  • SULFATE ION STANDARD
  • SULFATE STANDARD
  • SULFATE STANDARD SOLUTION
  • SULFATE, ANALYTICAL STANDARD
  • SULFATE, CERTIFIED ANION STANDARD
  • SULFATE CONCENTRATE ION STANDARD
  • SULPHATE
  • sulphate-sulfate
  • Sulfate, Ion chromatography standard solution, Specpure(R), SO4-2 1000μg/ml
  • AQUANAL(R)-plus sulfate (SO4) 50-330 mg/L
  • Sulfate, Ion chromatography standard solution, Specpure, SO4-2 1000g/ml
  • Sulfate (7ci,8ci,9ci)
  • Sulfate (ion 2-)
  • Sulfate anion
  • Sulfate anion(2-)
  • Sulfate dianion
  • Sulfate ion (so42-)
  • Sulfate ions
  • Sulfate Ion chromatography standard solution, SO
  • 14808-79-8
  • O4S
  • O5SZr
  • K2SO4inH2O
  • Analytical Reagents
  • Replacement Kit Items
  • Water Test
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