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:what is the importance of food additives?
Corn syrup--to most everything thats canned, bagged or otherwise not fresh. Additives help give a food a longer shelf life. That's it. They're obscenely unhealthy, but no one really reads the label anymore so no one notices.
Q:Whats the best Fuel saving additives?
iron fortified breakfast cereals, wheat bran, sesame seeds, pumpkin seeds, fresh mint, beans, wheat germ, fresh parsley, and peaches have the highest concentration of iron, as far as vegetarian options go.
Q:Are Food Additives Causing People to Act Crazy, Violence and Diseases?
that was scary when i looked at those links you gave, g.d. now i will have to force myself to stop eating many of my favorite foods. i'll try writing the manufacturers, telling them i've stopped eating their foods with monosodium glutamate, etc. and asking them to cut it out. maybe when enough people realize how harmful those additives are, then the f.d.a. will order them removed from food. i hope so. otherwise i will be eating very little processed food from now on.
Q:food additives???????????????????
If this is for a school report,you may want to cite a specific reference or two when it comes to supporting the claim that food additives can eventually create super germs(since you state that they will have antibiotic resistance). If there were any studies done my colleges or hospitals on this. You want to list their findings if it offers some sort of evidence to back up what you're writing.
Q:what is additive & subtractive colour in theory of light?
additive theory is the addition of colours to create the full spectrum of visible light. This is how you TV works, it uses an RGB signal, red green blue, to create the colours that you see. in subtractive cases, we add pigments that absorb all light but one colour. hence the subtraction of other colours. This system often uses CYM or cyan yellow magenta as its primary colours. take a look at the link it explains very well
Q:cigarette additives?
Cigarette and alcohol companies aren't required to list their additives. It's too 'costly'. They can put anything and everything in these. These chemicals can do anything from increase the shelf life to making them more addictive to making the smoke more 'pleasurable'. These companies pay millions of dollars in advertisements and 'studies' which brainwashes our nation into believing its 'not that bad'. They pay our congressmen and president, in their million dollar advertisements and private endorsements and (hopefully not often) bribes. People don't really care enough to do anything about it themselves. In return no laws are passed against them. There is nothing we can do until we stop the lobbyism commercialism and capitalism.
Q:Food additive use management system
the pick must be in charge of the director of the diet center approved before they can be collected by the amount of the Treasury.
Q:what is distributed property,additive identity,community property?
hehehehe you said, discharge pipe.
Q:what are some important food additives we need?
In bacon, ham, corned beef and other 'cured' meats, nitrite and nitrate (E249 to E252) are vital to prevent the growth of bacteria. In dried fruit, sulphur dioxide (E220) also protects against bacteria. Ascorbic acid, or vitamin C (E300) is sometimes added to food. E300 prevents scurvy
Q:Find the additive& multiplication inverse for each number?
The additive inverse is what, when added to the original number, gives you 0. The multiplicative inverse is what, when multiplied by the original number, gives you 1. 1. 12.1 The additive inverse is -12.1. The multiplicative inverse is 1/12.1, or 10/121. 2. -0.25 The additive inverse is 0.25. The multiplicative inverse is 1/-0.25, or 1/-(1/4), or -4. 3. 6/13. The additive inverse is -6/13. The multiplicative inverse is 1/(6/13), or 13/6. 4. -3/8. The additive inverse is 3/8. The multiplicative inverse is 1/(-3/8), or -8/3. 5. sqrt(15) The additive inverse is -sqrt(15). The multiplicative inverse is 1/sqrt(15). You can simplify this by multiplying it by sqrt(15)/sqrt(15). The result is sqrt(15)/15. Done.

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