Sodium Dichromate

Name: Sodium Dichromate
Brand: Gansu Qiyuan Chromate Chemical Production Co., Ltd.
SKU: N/A
Price: 10.00 USD
Availability: PreOrder
Rating: 1.1 (0 reviews)

(1.1)

Gansu Qiyuan Chromate Chemical Production Co., Ltd.

Supplier From China

Jul-12-19

Chemical Formula: Na2Cr2O7Â·2H2O, molecular weight: 298.00.
Bright orange monoclinic needle shaped or granular crystal, dehydrated to copper-brown substance at 84.6.
Deliquesces readily in air, and easily soluble in water, forming an acidic orange solution. A strong oxidizing agent in an acidic medium. Poisonous.

Application
Mainly used in the manufacture of chromium anhydride, yellow pigments and other chromate salts.
Also used in leather tanning, textile dyeing, electroplating, medicine, lipids, oil-well drilling and wood preservation etc.

Packaging
In reinforced-type composite plastic woven bags, net weight for each: 25kg, or 40kg.

Notice
1. Avoid moisture, heat and shock during storage and transportation. Keep away from combustibles.
2. Do not store with foodstuff or strong reducers.
3. Avoid contacting with eyes and skin.
4. Personal protective appliance should be equipped with, such as self-suction respirator, acid-proofing rubber gloves, security coat and boot, chemical-resistant protective glasses.
5. In case of leakage, reduce with 10% sulfuric acid and ferrous sulfate, and neutralize with calcium oxide immediately.

CAS No.:7789-12-0 UN No.:3086

Executive Standard
GB/T1611/2003

Items Standard
Na2Cr2O7-2H2O 98.3%min
Sulfate(SO4) 0.30%max
Chloride(CL) 0.10%max

Price and Minimum Quantity

Price: $10

MOQ: Minimum Order Quantity: Not Specified

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Sodium Dichromate also known as Sodium Bichromate is used in a variety of industrial applications like as an oxidizing agent (to make dyes, inks, and other chemicals), bleaching agent (fats, oils, sponges, and resins), tanning agent, and mordant in dyeing; Also used in electric batteries, for refining petroleum, electro-engraving copper, in corrosion inhibitors and corrosion inhibiting paints, metal treatments, hardening gelatin, defoliation of cotton and other plants and shrubs, and as a topical anti-infective; Used for metal finishing (chrome plating, electroplating, passivating, anodizing, and brightening), to make vitamin K, colored glass, ceramic glazes, essential oils, and perfumes.
Sales Specification

Appearance: Orange-red mono-slanting corrugation crystallization or fine needle crystallization.
Assay (Na2Cr2O7.2H2O): 98.5% Min
Sulphate (SO4 2-): 0.3% Max
Chloride(Cl-): 0.05% Max
Iron (Fe): 0.006% Max.
Water solubles: 0.01 Max.
Packing

110.23 Lb drums, 18 drums per pallet
DOT Transportation

UN/NA: 3288
Proper Shipping Name: Toxic solid, inorganic, n.o.s. (Sodium dichromate)
Hazard Class: 6.1 (Poisonous material)
Packing Group: III
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The common name is sodium chromate, molecular formula na2cr2o7.2h2o, relative molecular mass 298.00, the dihydrate is bright orange monoclinal needle-like or small granular crystal, forming copper-brown anhydrous substance after dehydration in 84.6.In the air, it is easily deliquescent and soluble in water, forming an orange solution whose aqueous solution is acidic.In acidic medium, sodium dichromate is a strong oxidant and toxic.25kg, 40kg and 50kg reinforced woven bags are packed with inner plastic bags.

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(Na2Cr2O7â?¢2H2O) 98.3%min
Sulfate(SO4) 0.30%max
Chloride(CL) 0.10%max
Packaging:In pp woven bags, 25kg,50kg or 1000kg net.

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Sodium dichromate is the inorganic compound with the formula Na2Cr2O7. Usually, however, the salt is handled as its dihydrate Na2Cr2O7Â·2H2O. Virtually all chromium ore is processed via conversion to sodium dichromate and virtually all compounds and materials based on chromium are prepared from this salt. In terms of reactivity and appearance, sodium dichromate and potassium dichromate are very similar. The sodium salt is, however, around twenty times more soluble in water than the potassium salt (49 g/L at 0 Â°C) and its equivalent weight is also lower, which is often desirable.[2]

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Product Character
Chemical Formula: Na2Cr2O72H2O, molecular weight: 298.00.
Bright orange monoclinic needle shaped or granular crystal, dehydrated to copper-brown substance at 84.6 degree celsius.
Deliquesces readily in air, and easily soluble in water, forming an acidic orange solution. A strong oxidizing agent in an acidic medium. Poisonous.

Application
Mainly used in the manufacture of chromium anhydride, yellow pigments and other chromate salts.
Also used in leather tanning, textile dyeing, electroplating, medicine, lipids, oil-well drilling and wood preservation etc.

Notice
1. Avoid moisture, heat and shock during storage and transportation. Keep away from combustibles.
2. Do not store with foodstuff or strong reducers.
3. Avoid contacting with eyes and skin.
4. Personal protective appliance should be equipped with, such as self-suction respirator, acid-proofing rubber gloves, security coat and boot, chemical-resistant protective glasses.
5. In case of leakage, reduce with 10% sulfuric acid and ferrous sulfate, and neutralize with calcium oxide immediately.
[quality standard]:GB1611--2003
Items Standard
(Na2Cr2O72H2O) 98.3%min
Sulfate(SO4) 0.30%max
Chloride(CL) 0.10%max
Packaging:In pp woven bags, 25kg,50kg or 1000kg net.