sulphonated naphthalene formaldehyde admixture

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Quick Details

  • Classification:Chemical Auxiliary Agent

  • CAS No.:29321-75-3

  • Place of Origin: China (Mainland)

  • Appearance:Light brown powder

  • Solid content:92% Min

  • Sodium Sulphate content:5%,10%,18%

  • PH Value:7-9

  • Water-reducing ratio:18%-28%

Packaging & Delivery

Packaging Details:25kgs per bag,40kgs per bag and 750kgs per UV bulk bag.
Delivery Detail:10days after sales confirmed

Specifications

We specialize in manufacturing FDN-A,B,C of sulphonated naphthalene formaldehyde.Our production capacity is 300,000 tons/year.

SULPHONATED NAPHTHALENE FORMALDEHYDE

1.Product General

FDN-A ,FDN-B,AND FDN-C Superplasticizer is a dry powdered admixture. It is produced through such a process: 1) sulphonating refined naphthalene with sulfuric acid, 2) condensing with formaldehyde, 3) neutralization, and 4) filtering. It conforms to GB8076-1997 and is mainly used for various high-strength concrete, steel concrete, prestressed concrete, large formwork concrete, slipforming concrete etc.

2.Standard Quality Targets:

FDN-A

item

target

item

target

appearance

Brownish powder

PH    Value

7--9

Solid content

≥92%

Neat cement Grout flowability

≥250 mm

Na2SO4

5% MAX.

fineness

0.315mm Mesh<15

Chloride

0.3%MAX

Surface Tension

(71±1)×10-3N/ m

FDN-B

item

target

item

target

appearance

Brownish powder

PH    Value

7--9

Solid content

≥92%

Neat cement Grout flowability

≥240 mm

Na2So4

10%MAX.

fineness

0.315mm Mesh<15

Chloride

0.4%MAX

Surface Tension

(71±1)×10-3N/ m

FDN-C

item

target

item

target

appearance

Brownish powder

PH    Value

7--9

Solid content

≥92%

Neat cement Grout flowability

≥230 mm

Na2So4

20%MAX

fineness

0.315mm Mesh<15

Chloride

0.5%MAX.

Surface Tension

(71±1)×10-3N/ m

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Q:Bean Additives use, how to add lobster sauce?
Basic production processes and key control links (a) the basic production process. (B) key control links. 1. Selection and cleaning. 2. Selection of bacteria, temperature and time of fermentation. 3. Boil temperature and time. 4. Solidification. 5. Production and processing of environmental health control. 6. Storage and transportation of finished products. (C) prone to quality and safety issues. 1. Pollution of bacteria, resulting in semi-finished and finished products of corruption and deterioration; 2. Protein and amino acid nitrogen content is too low; 3. Food additives and over-range of excessive use; 4. Processing of non-food raw materials.
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No, it's spices
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Food additives are substances added to food to preserve flavor or enhance its taste and appearance. Some additives have been used for centuries; for example, preserving food by pickling (with vinegar), salting, as with bacon, preserving sweets or using sulfur dioxide as in some wines. With the advent of processed foods in the second half of the 20th century, many more additives have been introduced, of both natural and artificial origin. Foodditive is a community site and iPhone application providing comprehensive information on E-numbered food additives. There are hundreds of food additives which may be used to improve the colour, flavour, texture, or storage life of food.
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The additive inverse of a binomial is the negative of the binomial. For example, suppose I have the binomial... x^2 - 3x. The negative of this binomial is... -1(x^2 - 3x) = -x^2 + 3x -x^2 + 3x is the additive inverse of x^2 - 3x because when you add the two binomials, you get 0: -x^2 + 3x + x^2 - 3x = 0 This works the same way with regular numbers... The additive inverse of 3 is -3 because 3 + -3 = 0 The additive inverse of -1/2 is 1/2 because -1/2 + 1/2 = 0 And so on...
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National food safety law provides that can be added, as long as the scope of the measurement is allowed to be safe, and now those black heart traders add more random heart, causing physical damage or even life, which made everyone afraid of an additive.
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Q:What food does not have artificial food additives
Looks like no, all the packaging of food, will contain a certain amount of additives, if not, and only their own hands at home to do the natural bar, in fact, as long as the amount of food additives, will not be harmful to the human body.Moreover, no food Additives, food will not have our favorite color scent.
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If it is caramel pigments and phospholipids, then the human body is harmless, caramel pigments have the role of promoting digestion, phospholipids are also beneficial to the human body.
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According to GB 2760-2017, the food additive propylene glycol can be used as stabilizer and coagulant, anti-caking agent, defoamer, emulsifier, moisture retention agent, thickener.

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