CATEGORIES

ORGANIC COMPOUNDS(1306)
INORGANIC COMPOUNDS(1001)
COLORIMETRIC REAGENTS(27)
LAB EQUIPMENT(5267)
Health & Safety(30)
Household Products(6)
*(1)
Organic Synthesis(527)
Industry(830)
- Sculpting(2)
- Photography(164)
  - Cyanotype(0)
  - Toners(0)
  - Light sensitive materials(17)
  - Developers(115)
    - B&W developing agents(12)
    - Supporting chemicals(103)
  - Stop bath (halts development)(18)
  - Fixer (removes unexposed silver halides)(10)
  - Bleach / Blix (color processing)(9)
  - Wash aids & final rinses(7)
- Construction industry(3)
- Products for chemical laundries(29)
- Cosmetic industry(463)
- Candle manufacturing(2)
- Pyrotechnics(137)

Currency

All prices are displayed with vat rate 23%, depending on destination country final price might differ, for most EU countries price will be decreased. If you are active tax payer in the EU after providing correct company data you will be charged only netto prices (0% VAT)

Language

US version allows shipping to all available destinations

Select vendor

Help dissolve/reprecipitate silver during development → finer grain, smoother tones.

Solvents / grain-control agents

Potassium thiocyanate ( thiocyanide KSCN Potassium rhodanide ) 1000g 1kg

Vendor: SYNTHETIKA

Price:

€55.91

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €45.46

check more

Sodium sulfite (sodium sulphite) Na2SO3 Natriumsulfit Hypo clear - 1000g

Vendor: SYNTHETIKA

Price:

€7.46

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €6.06

check more

Sodium sulfite (sodium sulphite) Na2SO3 Natriumsulfit Hypo clear - 100g

Vendor: SYNTHETIKA

Price:

€2.80

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €2.27

check more

Sodium sulfite (sodium sulphite) Na2SO3 Natriumsulfit Hypo clear - 25 000g = 25kg bag

Vendor: SYNTHETIKA

Price:

€138.85

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €112.89

check more

Sodium sulfite (sodium sulphite) Na2SO3 Natriumsulfit Hypo clear - 5000g

Vendor: SYNTHETIKA

Price:

€32.62

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €26.52

check more

Sodium sulfite (sodium sulphite) Na2SO3 Natriumsulfit Hypo clear - 500g

Vendor: SYNTHETIKA

Price:

€4.66

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €3.79

check more

Urea ( carbamide , Carbonyl diamide ) - 1000g

Vendor: SYNTHETIKA

Price:

€4.66

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €3.79

check more

Urea ( carbamide , Carbonyl diamide ) - 100g

Vendor: SYNTHETIKA

Price:

€1.17

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €0.95

check more

Urea ( carbamide , Carbonyl diamide ) - 25 000g = 25kg bag

Vendor: SYNTHETIKA

Price:

€110.89

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €90.16

check more

Urea ( carbamide , Carbonyl diamide ) - 5000g

Vendor: SYNTHETIKA

Price:

€19.57

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €15.91

check more

Urea ( carbamide , Carbonyl diamide ) - 500g

Vendor: SYNTHETIKA

Price:

€2.80

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €2.27

check more

Ammonium thiocyanate (Ammonium rhodanate)Loba 98.5% AR/ACS Op.500 g

Vendor: LOBA

Price:

€23.72

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €19.29

check more

Sodium rhodanate (sodium thiocyanate) 98% Loba AR Op.500 g

Vendor: LOBA

Price:

€31.63

incl. 23% TAX, final price will be adjusted to your country VAT rate, excl. shipping

Net price: €25.71

check more

These influence grain appearance by partially dissolving silver as it forms and letting it redeposit more smoothly. This tends to produce finer, less “peppery” grain and smoother midtones. The tradeoff is that strong solvent action can slightly soften edge sharpness (acutance) and reduce the crisp “bite” some people like.

Sodium sulfite at higher levels gives classic fine-grain behavior (e.g., D-76 style).
Thiocyanates are stronger solvents: they can boost speed and smooth grain further, but overuse can make grain “clumpy” or reduce apparent sharpness.