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Powder Industrial Grade Sodium hydrosulfite

  • 7775-14-6
  • Industrial grade
  • Na2O4S2
  • 174.10700
  • 2831101000
  • Sodium hydrosulfite
  • Sodium dithionite hydrate
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1. Introduction of Sodium Hydrosulfite

Chemical Name

Sodium Hydrosulfite

CAS No.

7775-14-6

Molecular Formula

Na2O4S2

Molecular Weight

174.10700

EINECS

231-820-9


2. Properties of Sodium Hydrosulfite

Appearance & Physical State

White crystalline powder

Melting Point


300℃ (dec.)

Boiling point


1390°C

Water soluble

250 g/L (20℃)


3. Chemical Analysis Certificate

品名:

Product name:

Sodium sulphate Anhydrous

有效期

Expire date

2024.06.20

生产日期:

Manu. date

2022.06.20

Lot number

批号

2022.06.20

测定项目Index

质量指标 Specification

测定结果 Result

含量Na2SO4%              

≥92.0

99.9

水不溶物Water-insoluble%

≤0.05

0.028

钙镁含量以Mg计Ca,Mg(As Mg)%

≤0.15

0.05

氯化物以Cl计Chloride (as Cl)%

≤0.12

0.010

铁Fe%

≤0.002

0.001

水分Moisture%

≤0.20

0.01

白度whiteness

≥80

85

PH

6-8

7


Physical and chemical properties: Properties White crystalline powder.
Relative density: 2.3~2.4
Solubility: Highly soluble in water, insoluble in alcohol.


Packing

 50kg/bag         450bags/20fcl            22.5mts/20fcl


4. Security


Oral LD50:600-700mg /kg (S02) for rabbits. ADI 0 ~ 0.70 mg/kg (in S02, including total ADI} of S02 and sulfite FAO/WHO, 1999).

Use Uchimura polyethylene plastic bags (plastic bags should be double pierced), sealed tightly stamped iron drum packaging, iron sheet thickness is not less than 0.7 mm. The net weight of each barrel is 50kg. It is a second-class water-burning article, hazardous code number: GB4.2 class 420120 UN N0.13840 IMDGCODE page 4262, class 4.2 (domestic according to 4.3 class 43041 treatment). It should be stored in a cool, ventilated and dry warehouse. Prevent moisture, prevent direct sunlight, away from fire, do not contact with water or steam, do not store and transport with oxidants or other flammable goods. Tie and cover the mouth immediately after use and keep it properly. When fire, do not use water, need to use sand, carbon dioxide clamour to fight. Toxicity and dosage: Food grade products according to the national standard GB 2760-86 provisions: used as bleaching agent for sugar, candy, cookies, canned, bamboo shoots, mushrooms, etc., dosage is 0. 4G /kg. For residual amount, see anhydrous sodium sulfite.


Usage


Uses: mainly used as reducing agent for printing and dyeing, bleaching agent for pulp, linen, oil, etc., and for pharmaceutical, analytical reagents, etc

Sodium hyposulfite is more reductive in sulfite bleach. The maximum amount used for preserves, dried fruits, dried vegetables, vermicelli, glucose, sugar, crystal sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms is 0.40g /kg. The residual amount is measured by sulfur dioxide, bamboo shoots, mushrooms and canned mushrooms shall not exceed 0.5 5g/kg; Sugar, vermicula and other varieties shall not exceed 0.1g /kg; Liquid glucose shall not exceed 0.2g /kg; Candied fruit shall not exceed 0.05g /kg. Residual content of potato powder (S02) ≤0. 05g/kg.


Product Specification


Please click Contact Us or Email directly to info@hiseachem.com to get the latest specification.


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A: More than 10 years experienced of production chemical production. We have the most professional techniques and team. Great production capacity Sustainable Supply. According to customer requirements, we support the customized.


Q: What's the payment?

A: T/T would be better with quick transfer and few bank. LC could also be accept, but the proceure is complex and the fee is high. You can also use Western Union. For large quantity, sea shipping can be provided.


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A: We are a professional manufacturer. We are warmly welcome clients from worldwide to visit our factory and cooperate with us.


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A: We usually quote within 24 hours after we get your inquiry. If you are urgent to get the price, Please tell us in your email so that we will regard your inquiry priority.


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A: Our factory is located in Qingdao,China.


Q: What is your sample policy?

A: Some of our samples are available for free,while others are available at a cost.


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