Sodium hydrosulfite CAS NO.7775-14-6

(cas:7775-14-6)85% 88% 90% sodium hydrosulfite

1. faq

1)q:are you a factory or trading company

a:we are a factory.

2)q:where is your factory located how can i visit there

a:you can fly to zhengzhou xinzheng international airport .

all our clients, from home or abroad, are warmly welcome to visit us!

3)q:what is thepayment terms

a: l/c ,t/t, d/p,

4)q:how can i get some samples

a: kindly send us your address, we are honored to offer you samples.

5)q:how does your factory do regarding quality control

a: our factory can accept any third party inspection.

2. company profile

"no quality, no future" is always our pursuing goal.

we trust: you will always make a good deal if you cooperate with us.

no quality,no market;

no progress,no improvement.

3. our service

>> we are professional factory.we can guarantee production.

>> quality control, before shipment, free sample for test.

>> raw materials from chinese origin.

>> efficient opreations and best work attitude.

>> packing as your request, with photo before shipment

>> professional marketing team, technical department, product team.

>> mixed container, we can mix different items in one container.

>> prompt shipment with professional documents.

>> considerate service, meet client’s demand.

4. detailed parameters

sodium hydrosulfite is a kind of white sand crystallization or light yellow powder chemicals, melting point 300 ℃ (decomposition), ignition temperature 250 ℃, insoluble in ethanol, soluble in sodium hydroxide solution,and will burn a strong reaction when meeting with water.

name: sodium hydrosulfite

molecular formula:na2s2o4

molecular weight:174.108

einecs:231-890-0

appearance:white sand crystallization or light yellow powder

melting point:300℃

firing point:250℃

un:1384

5. product application

sodium hydrosulfite

>> in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
>>in bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
>> in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
>> in mineral, the compound of thiourea and other sulphides.
>> as reducing agent in chemical industry.
>> sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.

6. packing & shipping

>>25kgppbag,50kg/100kg net in iron drums with double pvc bags,21mt/20fcl ;or to clients’ requirements.

>>stored in cool, ventilate warehouse. keep away from fire and heat source.keep separated with oxidant, acid. prepare some material to deal with the leakage.

>> professional and fast loading.

>> supervise uploading the materials, check the container, the packages, every step, taking pictures and make records.

>> make a complete loading report for our customer of each shipment.